DNS problem, clients have to refresh browser in order to access valid URL's
Hello,
I'm running Windows SBS 2003 and I think I've narrowed down a problem to a particular DNS server. If I have my laptop configured to use my Windows domain controller as its DNS server, my browser will intermittently give me errors for valid URLs claiming
that the page cannot be found. If I hit the refresh button, the page then loads.
I have seen this behavior on other clients using the same DNS server.
The broken DNS server is configured as a forwader, it's using my ISP's DNS servers for queries.
I see this behavior in both Firefox and Internet Explorer.
If I use a different DNS server, the problem goes away. This working DNS server is also a forwarder with the same ISP and DNS servers as the broken DNS server.
I turned on DNS logging on the problem DNS server and noticed that whenever this problem occurs on a client, there is an entry like this:
20100517 14:04:02 1DE0 PACKET 01F76480 UDP Snd 10.10.8.152 0968 R Q [8381 DR NXDOMAIN] A (10)www(7)google(15)com(0)
It seems that my DNS server thinks there is no domain www.google.com for some reason. What's more is that the browser immediately shows the error, this is not a timeout. I've also noticed that at times some pages will only partially load, the
formatting might be missing, it's as if some of the links on the page itself are also broken.
Since the problem is intermittent, I can't reproduce it at will but it will happen about 5 or 6 times in the course of a day.
Any help in troubleshooting further would be greatly appreciated...
thanks
May 17th, 2010 4:11pm
Hello,
is the SBS also DNS server or what machine is used for DNS server, Microsoft DNS or another one?Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
Free Windows Admin Tool Kit Click here and download it now
May 17th, 2010 4:13pm
The broken DNS server is an installation of Windows SBS 2003, it is using Microsoft DNS. The same is true of the server that works correctly.
May 17th, 2010 4:37pm
Hello,
how do you realize that it is broken? Do you have errors in the event viewer? Please post an unedited ipconfig /all from the SBS and the other DNS server. Is the second DNS server also DC and what kind of zone is configured on it?Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
Free Windows Admin Tool Kit Click here and download it now
May 17th, 2010 4:41pm
Hello,
I have no errors in the event log of the server nor the clients unfortunately. The reason I say this one server's DNS is broken is that I see the error only when I configure clients to use this server for DNS.
The second DNS server is also a DC configured with an Active Directory Integrated zone. Ipconfig below:
Broken DNS server:
Windows IP Configuration
Host Name . . . . . . . . . . . . : apollo
Primary Dns Suffix . . . . . . . : gladstonellc.com
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : gladstonellc.com
PPP adapter RAS Server (Dial In) Interface:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.8.210
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled
Ethernet adapter Server Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 XT Network Connection
Physical Address. . . . . . . . . : 00-06-5B-FD-BD-8E
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.8.10
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.10.8.2
DNS Servers . . . . . . . . . . . : 10.10.8.10
Primary WINS Server . . . . . . . : 10.10.8.10
Working DNS server:
Windows IP Configuration
Host Name . . . . . . . . . . . . : alfa
Primary Dns Suffix . . . . . . . : stonewell.pl
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : stonewell.pl
Ethernet adapter Server Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 CT Network Connection
Physical Address. . . . . . . . . : 00-C0-9F-4C-28-38
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.9.30
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.10.9.2
DNS Servers . . . . . . . . . . . : 10.10.9.30
Primary WINS Server . . . . . . . : 10.10.9.30
May 17th, 2010 5:19pm
Hello,
you use 2 different domains with different subnets? So the workstation is member of the gladstonellc.com domain please make sure it is listed in the DNS forward/reverse lookup zones.
If the SBS doesn't have the need for remote access remove RRAS and WINS proxy from it.
On the gladstonellc.com DC run dcdiag /v and dcdiag /test:dns and post the output here. Also post an unedited ipconfig /all from the client you are using.
Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
Free Windows Admin Tool Kit Click here and download it now
May 18th, 2010 3:54pm
Hello again,
Yes, I have two different domains with two different subnets. My laptop is in the gladstonellc.com domain, however, I did not see an A record nor a PTR record for it on the DNS server for gladstonellc.com. I will put them in manually.
I need the RRAS so I'll leave that for now.
Output from commands below:
dcdiag /v from DNS server:
Domain Controller Diagnosis
Performing initial setup:
* Verifying that the local machine apollo, is a DC.
* Connecting to directory service on server apollo.
* Collecting site info.
* Identifying all servers.
* Identifying all NC cross-refs.
* Found 1 DC(s). Testing 1 of them.
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\APOLLO
Starting test: Connectivity
* Active Directory LDAP Services Check
* Active Directory RPC Services Check
......................... APOLLO passed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\APOLLO
Starting test: Replications
* Replications Check
* Replication Latency Check
* Replication Site Latency Check
......................... APOLLO passed test Replications
Test omitted by user request: Topology
Test omitted by user request: CutoffServers
Starting test: NCSecDesc
* Security Permissions check for all NC's on DC APOLLO.
* Security Permissions Check for
DC=ForestDnsZones,DC=gladstonellc,DC=com
(NDNC,Version 2)
* Security Permissions Check for
DC=DomainDnsZones,DC=gladstonellc,DC=com
(NDNC,Version 2)
* Security Permissions Check for
CN=Schema,CN=Configuration,DC=gladstonellc,DC=com
(Schema,Version 2)
* Security Permissions Check for
CN=Configuration,DC=gladstonellc,DC=com
(Configuration,Version 2)
* Security Permissions Check for
DC=gladstonellc,DC=com
(Domain,Version 2)
......................... APOLLO passed test NCSecDesc
Starting test: NetLogons
* Network Logons Privileges Check
Verified share \\APOLLO\netlogon
Verified share \\APOLLO\sysvol
......................... APOLLO passed test NetLogons
Starting test: Advertising
The DC APOLLO is advertising itself as a DC and having a DS.
The DC APOLLO is advertising as an LDAP server
The DC APOLLO is advertising as having a writeable directory
The DC APOLLO is advertising as a Key Distribution Center
Warning: APOLLO is not advertising as a time server.
The DS APOLLO is advertising as a GC.
......................... APOLLO failed test Advertising
Starting test: KnowsOfRoleHolders
Role Schema Owner = CN=NTDS Settings,CN=APOLLO,CN=Servers,CN=Default-Fi
rst-Site-Name,CN=Sites,CN=Configuration,DC=gladstonellc,DC=com
Role Domain Owner = CN=NTDS Settings,CN=APOLLO,CN=Servers,CN=Default-Fi
rst-Site-Name,CN=Sites,CN=Configuration,DC=gladstonellc,DC=com
Role PDC Owner = CN=NTDS Settings,CN=APOLLO,CN=Servers,CN=Default-First
-Site-Name,CN=Sites,CN=Configuration,DC=gladstonellc,DC=com
Role Rid Owner = CN=NTDS Settings,CN=APOLLO,CN=Servers,CN=Default-First
-Site-Name,CN=Sites,CN=Configuration,DC=gladstonellc,DC=com
Role Infrastructure Update Owner = CN=NTDS Settings,CN=APOLLO,CN=Server
s,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=gladstonellc,DC=com
......................... APOLLO passed test KnowsOfRoleHolders
Starting test: RidManager
* Available RID Pool for the Domain is 1609 to 1073741823
* apollo.gladstonellc.com is the RID Master
* DsBind with RID Master was successful
* rIDAllocationPool is 1109 to 1608
* rIDPreviousAllocationPool is 1109 to 1608
* rIDNextRID: 1200
......................... APOLLO passed test RidManager
Starting test: MachineAccount
Checking machine account for DC APOLLO on DC APOLLO.
* SPN found :LDAP/apollo.gladstonellc.com/gladstonellc.com
* SPN found :LDAP/apollo.gladstonellc.com
* SPN found :LDAP/APOLLO
* SPN found :LDAP/apollo.gladstonellc.com/GLADSTONELLC
* SPN found :LDAP/4df2b08c-14ce-43a0-8643-53ef03a4a755._msdcs.gladstone
llc.com
* SPN found :E3514235-4B06-11D1-AB04-00C04FC2DCD2/4df2b08c-14ce-43a0-86
43-53ef03a4a755/gladstonellc.com
* SPN found :HOST/apollo.gladstonellc.com/gladstonellc.com
* SPN found :HOST/apollo.gladstonellc.com
* SPN found :HOST/APOLLO
* SPN found :HOST/apollo.gladstonellc.com/GLADSTONELLC
* SPN found :GC/apollo.gladstonellc.com/gladstonellc.com
......................... APOLLO passed test MachineAccount
Starting test: Services
* Checking Service: Dnscache
* Checking Service: NtFrs
* Checking Service: IsmServ
IsmServ Service is stopped on [APOLLO]
* Checking Service: kdc
* Checking Service: SamSs
* Checking Service: LanmanServer
* Checking Service: LanmanWorkstation
* Checking Service: RpcSs
* Checking Service: w32time
w32time Service is stopped on [APOLLO]
* Checking Service: NETLOGON
......................... APOLLO failed test Services
Test omitted by user request: OutboundSecureChannels
Starting test: ObjectsReplicated
APOLLO is in domain DC=gladstonellc,DC=com
Checking for CN=APOLLO,OU=Domain Controllers,DC=gladstonellc,DC=com in
domain DC=gladstonellc,DC=com on 1 servers
Object is up-to-date on all servers.
Checking for CN=NTDS Settings,CN=APOLLO,CN=Servers,CN=Default-First-Sit
e-Name,CN=Sites,CN=Configuration,DC=gladstonellc,DC=com in domain CN=Configurati
on,DC=gladstonellc,DC=com on 1 servers
Object is up-to-date on all servers.
......................... APOLLO passed test ObjectsReplicated
Starting test: frssysvol
* The File Replication Service SYSVOL ready test
File Replication Service's SYSVOL is ready
......................... APOLLO passed test frssysvol
Starting test: frsevent
* The File Replication Service Event log test
......................... APOLLO passed test frsevent
Starting test: kccevent
* The KCC Event log test
Found no KCC errors in Directory Service Event log in the last 15 minut
es.
......................... APOLLO passed test kccevent
Starting test: systemlog
* The System Event log test
An Error Event occured. EventID: 0x80001778
Time Generated: 05/24/2010 08:29:17
Event String: The previous system shutdown at 02:18:15 on
2010-05-24 was unexpected.
An Error Event occured. EventID: 0x000004E6
Time Generated: 05/24/2010 08:30:44
(Event String could not be retrieved)
An Error Event occured. EventID: 0x00000457
Time Generated: 05/24/2010 08:52:33
(Event String could not be retrieved)
An Error Event occured. EventID: 0x00000457
Time Generated: 05/24/2010 08:52:34
(Event String could not be retrieved)
An Error Event occured. EventID: 0x00000457
Time Generated: 05/24/2010 08:52:48
(Event String could not be retrieved)
An Error Event occured. EventID: 0x00000457
Time Generated: 05/24/2010 08:52:50
(Event String could not be retrieved)
An Error Event occured. EventID: 0x00000457
Time Generated: 05/24/2010 08:52:54
(Event String could not be retrieved)
An Error Event occured. EventID: 0x00000457
Time Generated: 05/24/2010 08:52:55
(Event String could not be retrieved)
......................... APOLLO failed test systemlog
Test omitted by user request: VerifyReplicas
Starting test: VerifyReferences
The system object reference (serverReference)
CN=APOLLO,OU=Domain Controllers,DC=gladstonellc,DC=com and backlink on
CN=APOLLO,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configurati
on,DC=gladstonellc,DC=com
are correct.
The system object reference (frsComputerReferenceBL)
CN=APOLLO,CN=Domain System Volume (SYSVOL share),CN=File Replication Se
rvice,CN=System,DC=gladstonellc,DC=com
and backlink on CN=APOLLO,OU=Domain Controllers,DC=gladstonellc,DC=com
are correct.
The system object reference (serverReferenceBL)
CN=APOLLO,CN=Domain System Volume (SYSVOL share),CN=File Replication Se
rvice,CN=System,DC=gladstonellc,DC=com
and backlink on
CN=NTDS Settings,CN=APOLLO,CN=Servers,CN=Default-First-Site-Name,CN=Sit
es,CN=Configuration,DC=gladstonellc,DC=com
are correct.
......................... APOLLO passed test VerifyReferences
Test omitted by user request: VerifyEnterpriseReferences
Test omitted by user request: CheckSecurityError
Running partition tests on : ForestDnsZones
Starting test: CrossRefValidation
......................... ForestDnsZones passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... ForestDnsZones passed test CheckSDRefDom
Running partition tests on : DomainDnsZones
Starting test: CrossRefValidation
......................... DomainDnsZones passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... DomainDnsZones passed test CheckSDRefDom
Running partition tests on : Schema
Starting test: CrossRefValidation
......................... Schema passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... Schema passed test CheckSDRefDom
Running partition tests on : Configuration
Starting test: CrossRefValidation
......................... Configuration passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... Configuration passed test CheckSDRefDom
Running partition tests on : gladstonellc
Starting test: CrossRefValidation
......................... gladstonellc passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... gladstonellc passed test CheckSDRefDom
Running enterprise tests on : gladstonellc.com
Starting test: Intersite
Skipping site Default-First-Site-Name, this site is outside the scope
provided by the command line arguments provided.
......................... gladstonellc.com passed test Intersite
Starting test: FsmoCheck
GC Name: \\apollo.gladstonellc.com
Locator Flags: 0xe00001bd
PDC Name: \\apollo.gladstonellc.com
Locator Flags: 0xe00001bd
Warning: DcGetDcName(TIME_SERVER) call failed, error 1355
A Time Server could not be located.
The server holding the PDC role is down.
Warning: DcGetDcName(GOOD_TIME_SERVER_PREFERRED) call failed, error 135
5
A Good Time Server could not be located.
KDC Name: \\apollo.gladstonellc.com
Locator Flags: 0xe00001bd
......................... gladstonellc.com failed test FsmoCheck
Test omitted by user request: DNS
Test omitted by user request: DNS
dcdiag /test:dns
Domain Controller Diagnosis
Performing initial setup:
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\APOLLO
Starting test: Connectivity
......................... APOLLO passed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\APOLLO
DNS Tests are running and not hung. Please wait a few minutes...
Running partition tests on : ForestDnsZones
Running partition tests on : DomainDnsZones
Running partition tests on : Schema
Running partition tests on : Configuration
Running partition tests on : gladstonellc
Running enterprise tests on : gladstonellc.com
Starting test: DNS
Test results for domain controllers:
DC: apollo.gladstonellc.com
Domain: gladstonellc.com
TEST: Forwarders/Root hints (Forw)
Error: Forwarders list has invalid forwarder: 94.124.16.14 (<name unavailable>)
Summary of test results for DNS servers used by the above domain controllers:
DNS server: 94.124.16.14 (<name unavailable>)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 94.124.16.14
Summary of DNS test results:
Auth Basc Forw Del Dyn RReg Ext
________________________________________________________________
Domain: gladstonellc.com
apollo PASS PASS FAIL PASS PASS PASS n/a
......................... gladstonellc.com failed test DNS
ipconfig /all from my laptop:
C:\Users\George>ipconfig /all159
Windows IP Configuration
Host Name . . . . . . . . . . . . : GZ-LAPTOP
Primary Dns Suffix . . . . . . . : gladstonellc.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : linksys.com
linksys.com
Wireless LAN adapter Wireless Network Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : gladstonellc.com
Description . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN
Physical Address. . . . . . . . . : 00-16-EA-D8-5B-86
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : gladstonellc.com
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 00-23-54-0E-FF-D3
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::1e6:2dbd:551:7f3b%8(Preferred)
IPv4 Address. . . . . . . . . . . : 10.10.8.159(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, May 14, 2010 08:45:18
Lease Expires . . . . . . . . . . : Saturday, May 29, 2010 13:06:21
Default Gateway . . . . . . . . . : 10.10.8.2
DHCP Server . . . . . . . . . . . : 10.10.8.10
DHCPv6 IAID . . . . . . . . . . . : 134226772
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-10-EB-CD-FB-00-23-54-0E-FF-C7
DNS Servers . . . . . . . . . . . : 10.10.8.10
Primary WINS Server . . . . . . . : 10.10.8.10
NetBIOS over Tcpip. . . . . . . . : Enabled
Tunnel adapter Local Area Connection* 7:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Tun Miniport Adapter
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:73ba:32:2eca:f5f5:f760(Prefer
red)
Link-local IPv6 Address . . . . . : fe80::32:2eca:f5f5:f760%27(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled
Tunnel adapter Local Area Connection* 10:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : gladstonellc.com
Description . . . . . . . . . . . : isatap.gladstonellc.com
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 17:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 6TO4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
May 24th, 2010 10:32am
Hello,
if the workstation is member from gladstonellc.com make sure the DNS suffix search list is set accordingly and not for linksys.com.
Control the time service "w32time: on the SBS machine and start it, must be set to automatic, if this doesn't start check event viewer for errors and solve them.
If i see correct the 94.124.16.14 is configured as FORWARDER. Is this ip address used somewhere else? Did you make sure no firewall is blocking DNS port 53.
Control that the 10.10.8.210 RRAS ip address isn't registered in the DNS zones.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
Free Windows Admin Tool Kit Click here and download it now
May 24th, 2010 11:16pm
Hello,
The linksys.com was set on my wifi connection which I don't use but I went into the settings for the wifi connection and changed the DNS suffix to gladstonellc.com anyway.
The Windows Time Services was disabled on the SBS machine, I set it to automatic and started it.
94.124.16.14 is one of two DNS servers given to me by our ISP. As far as I know it's not used anywhere else. There are no firewalls blocking DNS port 53 either.
10.10.8.210 does not appear anywhere in the DNS zones.
One other thing I did was remove 94.124.16.14 from the list of forwarders. I am now waiting to see if anyone complains about getting the page not found error in their browsers.
Here is the latest dcdiag /test:dns after the changes:
Domain Controller Diagnosis
Performing initial setup:
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\APOLLO
Starting test: Connectivity
......................... APOLLO passed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\APOLLO
DNS Tests are running and not hung. Please wait a few minutes...
Running partition tests on : ForestDnsZones
Running partition tests on : DomainDnsZones
Running partition tests on : Schema
Running partition tests on : Configuration
Running partition tests on : gladstonellc
Running enterprise tests on : gladstonellc.com
Starting test: DNS
Test results for domain controllers:
DC: apollo.gladstonellc.com
Domain: gladstonellc.com
TEST: Forwarders/Root hints (Forw)
Error: Forwarders list has invalid forwarder: 94.124.16.10 (<n
ame unavailable>)
Error: Root hints list has invalid root hint server: a.root-se
rvers.net. (198.41.0.4)
Error: Root hints list has invalid root hint server: b.root-se
rvers.net. (128.9.0.107)
Error: Root hints list has invalid root hint server: c.root-se
rvers.net. (192.33.4.12)
Error: Root hints list has invalid root hint server: d.root-se
rvers.net. (128.8.10.90)
Error: Root hints list has invalid root hint server: e.root-se
rvers.net. (192.203.230.10)
Error: Root hints list has invalid root hint server: f.root-se
rvers.net. (192.5.5.241)
Error: Root hints list has invalid root hint server: g.root-se
rvers.net. (192.112.36.4)
Error: Root hints list has invalid root hint server: h.root-se
rvers.net. (128.63.2.53)
Error: Root hints list has invalid root hint server: i.root-se
rvers.net. (192.36.148.17)
Error: Root hints list has invalid root hint server: j.root-se
rvers.net. (192.58.128.30)
Error: Root hints list has invalid root hint server: k.root-se
rvers.net. (193.0.14.129)
Error: Root hints list has invalid root hint server: l.root-se
rvers.net. (198.32.64.12)
Error: Root hints list has invalid root hint server: m.root-se
rvers.net. (202.12.27.33)
Summary of test results for DNS servers used by the above domain contro
llers:
DNS server: 128.63.2.53 (h.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 128.63.2.53
DNS server: 128.8.10.90 (d.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 128.8.10.90
DNS server: 128.9.0.107 (b.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 128.9.0.107
DNS server: 192.112.36.4 (g.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 192.112.36.4
DNS server: 192.203.230.10 (e.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 192.203.230.10
DNS server: 192.33.4.12 (c.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 192.33.4.12
DNS server: 192.36.148.17 (i.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 192.36.148.17
DNS server: 192.5.5.241 (f.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 192.5.5.241
DNS server: 192.58.128.30 (j.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 192.58.128.30
DNS server: 193.0.14.129 (k.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 193.0.14.129
DNS server: 198.32.64.12 (l.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 198.32.64.12
DNS server: 198.41.0.4 (a.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 198.41.0.4
DNS server: 202.12.27.33 (m.root-servers.net.)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 202.12.27.33
DNS server: 94.124.16.10 (<name unavailable>)
1 test failure on this DNS server
This is not a valid DNS server. PTR record query for the 1.0.0.12
7.in-addr.arpa. failed on the DNS server 94.124.16.10
Summary of DNS test results:
Auth Basc Forw Del Dyn RReg Ext
________________________________________________________________
Domain: gladstonellc.com
apollo PASS PASS FAIL PASS PASS PASS n/a
......................... gladstonellc.com failed test DNS
Looks like now root servers are failing too as is the second DNS forwarder.
May 25th, 2010 11:33am
Hello,
as the root servers aren't valid and you don't have th FORWARDERS set update the root server list, therefore start the DNS management console, open the DNS server properties and choose root hints tab, click "Copy from server" and enter the ip address 4.2.2.2
AFAIK the 4.2.2.2 is always up to date with root servers.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
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May 25th, 2010 11:55am
Hello,
OK I followed your instructions to get update the root server list. The results of my dcdiag test remain unchanged. However, I noticed that if I on the Forwarders tab I click the checkbox at the bottom, "Do not use recursion for this domain",
the dcdiag shows no errors for the root servers, only for the single forwarder I have configured.
I see the same behavior on the SBS server with the working DNS as well.
May 25th, 2010 12:02pm
I know this is slightly irrelevant, but I am a home computer repair technician, and I have had the same issue for years since moving to windows 7. About 1-2% of all web pages timeout instantly but load instantly once refresh is clicked, even for pages like
google or whatsmyip.org. This issue has survived 3 new ~ $1400 computers, 4 ISP's, 9 modems, and 3 physical relocations, 1 interstate. Only common factor: windows 7, and ive tried ALL versions with same results.
To be noted: some web pages are NEVER affected by this bug, such as speedtest.net, which is under CONSTANT 24 hour load...
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January 25th, 2012 12:55am