Odd Problem with one way communication only. I have 3 servers 2 are domain controllers one member server. From the DC machines, I can not ping the member server, but from the member server I can ping and was able to join the domain. DC 1 - Windows 2008 X64 - running DNS server ( under the dc.mjs.com forward lookup zone i manualy added a host a record) DC 2 -Windows 2003 RC2 X64 Member server- 2003 Rc2 X32 ( I can ping both DC servers and am a member of the domain and appear in AD).IP6 and firewalls are turned off on all 3 servers. From 2008 Dc when looking at explorer networks that server shows up, but errors on connection.Any thoughts as to why I can't connect from the either DC to the member server? Trying to validate the entry in DNS can't communicate. Trying to connect thru DFS, can't find that server.I also from the member server manualy ran ipconfig /registerdns - It updated on the DC DNS server, I saw the updated record. I reloaded the zone, still can't ping from the Dc to this server.Thanks,Marcy

Hello,please post an unedited ipconfig /all from the 3 servers, so we can exclude DNS settingsas a problem.Also there shouldn't be the need to add an entry for the 2008 DC manual, this should be done automatically. Make sure all machines have the DHCP client service started and set to automatic. Even if you use ficxed ip addresses, this service is required for DNS registration/updates. Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.

All servers are running dhcp client and set to auto start. 192.168.1.5 - Windows 2008 domain controller and DNS server Windows IP Configuration Host Name . . . . . . . . . . . . : WIN-TAVG2LL8QOA Primary Dns Suffix . . . . . . . : dc.mjs.com Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : dc.mjs.com mjs.com Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection Physical Address. . . . . . . . . : 00-0C-29-18-1A-B1 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.5 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter Local Area Connection* 8: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : isatap.{40C1AD0D-BEB9-4889-8CFE-3F5DD94C276C} Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes 192.168.1.7 - Windows 2003 Domain controller Windows IP Configuration Host Name . . . . . . . . . . . . : mjs-server2003 Primary Dns Suffix . . . . . . . : dc.mjs.com Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : dc.mjs.com mjs.com Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection Physical Address. . . . . . . . . : 00-0C-29-40-D2-5F DHCP Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.7 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.5 192.168.1.1 Windows 2003 x32 member server Windows IP Configuration Host Name . . . . . . . . . . . . : Netfin03 Primary Dns Suffix . . . . . . . : dc.mjs.com Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : Yes WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : dc.mjs.com mjs.com Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel 8255x-based PCI Ethernet Adapter (10/100) Physical Address. . . . . . . . . : 00-02-55-A0-0F-A2 DHCP Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.9 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.5 192.168.1.1 From .9 I can ping .7 and .5, from .7 I can ping .5 but not .9, from .5 I can ping .7 but not .9.AD on .5 and .7is seeing .9 and DNS entries on .5 for .9 appeared when i ran the ipconfig /registerdns.Not to muddy the waters, but... I have 2 other computers that are not part of thisdomain in the home on the same IP network. 1 - Vista business laptop - it can't ping .9 either. Another Vista premium desktop, it can ping .9 and RDP to .9.Thanks for any insight!

Hello,remove the 192.168.1.1 as DNS server, this seems to be your router. I assume you have done this for internet access. But that way it creates problems as you have.Configure on each of your DNS server properties in the DNS management console the FORWARDERS tab with the ISPs DNS server.After removing the 192.168.1.1 from each NIC, run ipconfig /flushdns and ipconfig /registerdns and make sure this entry doesn't exist in the DNS zones.On the DCs also restart the netlogon service or run netdiag /fix and dcdiag /fix.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.

Same issue after trying all of the above, no change at all. Still can get out but not in. I've double checked that firewall is off on .9 machine. It's highly odd that 1 machine can't get to that machine but no one else. Also that that machine has no issues with outgoing communications.thanks,

Hello,the DC/DNS servers configure on the NIC as secondary for the other DC/DNS. Which kind of zone do you run, AD integrated? Are they configured to "Secure only" updates?Is the 2003 member server configured form an image which is not sysprepped?Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.