Please forgive me if this question has been asked in one form or another before. I have an entry-level Dell PowerEdge with 2008 R2 Standard in a small office network. The topology includes Dell PowerConnect 3524 switch and a Netgear Prosecure UTM25 router. DHCP is configured on the server and not the router. I only have one NIC in the server, and the router takes care of external IP settings. My server has the following roles installed: ADDS, DHCP, DNS, File Services, Hyper-V. When I first configured the server, I setup DNS and then AD DC, as recommended by Microsoft. Then I uninstalled all the roles (perhaps this is where the problem lies) because there were DNS errors (unfortunately undocumented) that worried me, and I decided to start over by running dcpromo first and installing DNS in the process. I joined one test client to the domain. Had trouble doing it at first, though, until I changed the IPv4 client adapter to 'Obtain IP automatically' and listed the DNS server in the client connection as 192.168.1.2 (server IP). Then I was able to join the domain. When I went to troubleshoot the client 'X' between network and the internet, the result was: "DNS Server is not responding", while the server remained connected without any problems. Then I changed the client connection to the following static settings: IP: 192.168.1.51 (issued by DHCP) Subnet: 255.255.255.0 Default gateway: 192.168.1.99 (Router) Preferred DNS: 192.168.1.2 (Server) My client now registers in the forward and reverse lookup zones. But shouldn't all this be happening dynamically? Does anyone have any ideas about what I may be doing wrong? Thank you!

hi, did you configure server options in DHCP server, configure Router option in DHCP scope or server options, then try

Please post unedited ipconfig /all from server and problem client. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Thank you so much for your responses! I am so nervous about posing all of my IP configuration in a public forum. However, I ran the command more than once and just noticed that DHCP is not enabled in LAN adapter connection configuration, but DHCP role is active in Server Manager. Let me see what I can post. I will mask out areas that I shouldn't share publicly.

Posting config from private address space would not pose any security risk. There are thousands of devices using 192.168.1.xxx addresses. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

If I've masked out too much, please let me know. Thank your willingness to help! Server: C:\Users\Administrator.MASKEDSERVERNAME>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : MASKEDSERVERNAME Primary Dns Suffix . . . . . . . : maskeddnssuffix.local Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : maskeddnssuffix.local Ethernet adapter Local Area Connection 3: Connection-specific DNS Suffix . : maskeddnssuffix.local Description . . . . . . . . . . . : Local Area Connection - Virtual Network Physical Address. . . . . . . . . : ma-sk-ed-ad-dr-es DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::6145:ae5e:1683:5907%16(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.99 DHCPv6 IAID . . . . . . . . . . . : masked DHCPv6 Client DUID. . . . . . . . : masked DNS Servers . . . . . . . . . . . : 192.168.1.2 127.0.0.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.maskeddnssuffix.local: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : maskeddnssuffix.local Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes C:\Users\Administrator.MASKEDSERVERNAME>nslookup Default Server: maskedservername.maskeddnssuffix.local Address: 192.168.1.2 Client: C:\Users\maskeduser>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : maskedhostname Primary Dns Suffix . . . . . . . : maskeddnssuffix.local Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : maskeddnssuffix.local Wireless LAN adapter Wireless Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : maskedstate.maskedprovider.com Description . . . . . . . . . . . : Intel(R) Centrino(R) Ultimate-N 6300 AGN Physical Address. . . . . . . . . : ma-sk-ed-ad-dr-es DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controlle r Physical Address. . . . . . . . . : ma-sk-ed-ad-dr-es DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::342b:88e4:f891:643a%11(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.51(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.99 DHCPv6 IAID . . . . . . . . . . . : masked DHCPv6 Client DUID. . . . . . . . : masked DNS Servers . . . . . . . . . . . : 192.168.1.2 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{maskedcode}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 14: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft 6to4 Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.maskedstate.maskedprovider.com: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes C:\Users\maskeduser>nslookup Default Server: maskedservername.maskeddnssuffix.local Address: 192.168.1.2

If you see masked* repeated, the values are respected. If they were different, I would have marked them something like this: maskeddnssuffix1 and maskeddnssuffix2.

Looks like client is multi-homed? Please disable the wireless adapter, reboot and try again. Also is there a DHCP server? Looks to be static setup on client. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Yes, there is a wireless adapter, but the physical switch is turned off. I am rebooting it, however. And that is precisely the problem, I can only connect to the internet via static configuration, while the roles appear to be functioning without any problems. Then, the only default gateway that opens the client's door to the internet is the router's IP. Shouldn't that be set to something of the server?

I should also mention that I set a scope on the server of 192.168.1.50 to 200. Can the fact that the server, router, and switch are not in the scope be causing a problem?

Please disable the wireless adapter on client, also set ip config back to normal (dhcp), might also do an ipconfig /flushdns, ipconfig /registerdns on both client and server. Reboot, and post upedited ipconfig /all of both client and server. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Thank you, will do now! What do you mean by setting ipconfig back to normal?

DHCP assigned Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Do you mean to switch it from static to automatic?

Yes Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Server: C:\Users\Administrator.MASKEDSVR>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : MASKEDSVR Primary Dns Suffix . . . . . . . : maskeddnssuffix.local Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : maskeddnssuffix.local Ethernet adapter Local Area Connection 3: Connection-specific DNS Suffix . : maskeddnssuffix.local Description . . . . . . . . . . . : Local Area Connection - Virtual Network Physical Address. . . . . . . . . : ma-sk-ed-ad-dr-es DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::6145:ae5e:1683:5907%16(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.99 DHCPv6 IAID . . . . . . . . . . . : masked DHCPv6 Client DUID. . . . . . . . : masked DNS Servers . . . . . . . . . . . : 192.168.1.2 127.0.0.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.maskeddnssuffix.local: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : maskeddnssuffix.local Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes C:\Users\Administrator.MASKEDSVR>nslookup Default Server: MASKEDSVR.maskeddnssuffix.local Address: 192.168.1.2 Client: C:\Windows\system32>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : maskedhostname Primary Dns Suffix . . . . . . . : maskeddnssuffix.local Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : maskeddnssuffix.local Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : maskeddnssuffix.local Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controlle r Physical Address. . . . . . . . . : ma-sk-ed-ad-dr-es DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::342b:88e4:f891:643a%11(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.51(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Saturday, June 09, 2012 4:59:39 PM Lease Expires . . . . . . . . . . : Sunday, June 17, 2012 4:59:39 PM Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.2 DHCPv6 IAID . . . . . . . . . . . : masked DHCPv6 Client DUID. . . . . . . . : masked DNS Servers . . . . . . . . . . . : 127.0.0.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.maskeddnssuffix.local: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : maskeddnssuffix.local Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 14: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft 6to4 Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes C:\Windows\system32>nslookup Default Server: UnKnown Address: 127.0.0.1

DHCP server should hand out 192.168.1.2 as primary DNS server. Gateways are different for some reason? Also check that public DNS addresses are in forward lookup of local DNS server. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

I already had one of the forwarders in 8.8.8.8. Added the second one. Now I am connected to the local network, but not to the internet. Back to square one.

None of that matters right now since DHCP server is incorrectly handing out 127.0.0.1 for local DNS instead of 192.168.1.2. Also need to fix the gateway problem at some point. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

OK, you've finally led me to the answers! In the IPv4 settings of the DHCP role, I changed Scope Options and Server Options. For some reason, my server IP address was 127.0.0.1 and the router address was 192.168.1.1. When I changed those to 192.168.1.2 (server) and 192.168.1.99 (router) respectively, I was able to join the client without any problems! Thank you for taking the time to help me!

You're welcome. Seems you have marked the wrong as answer. Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

hi, Dave you are so lucky..

You can allways add static address only for DNS Best regards Dubravko Marak MCP Blog: Windows Server Administration Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.