Windows 2008 SBS Server will not keep manual gateway IP address after restart

Zion Phil
Zion Phil used Ask the Experts™
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I just setup a Windows 2008 SBS Server and punched in the manual IP address for it. Everytime I restart it keeps all the other IP's I punched in except the gateway, therefore losing Internet Access. I have a seperate Linksys Router running the DHCP and managing the Internet. DHCP is disabled on the server. Why does it keep doing this?
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Top Expert 2013

Commented:
I suspect your problem is as per KenMcF's link however with SBS the router should not be the DHCP server, and the gateway and internet connection should not be set manualy but rather using the "Connect to the Internet" and Configure My Internet address" wizards. Not doing so will cause numerous problems other than just gateway issues.
Zion PhilPresident

Author

Commented:
RobWill, why do you practice the router not being the DHCP server?  I have found over the years it's best not to put everything in one basket when you only have one server. If the server goes down the everyone still has Internet. I have never experienced any problems with this practice and find it avoid many issues where I see many IT people still struggle with. As long as one of the DNS's in the router being handed out,  are the IP of the server, everything is fine.
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Top Expert 2013
Commented:
Not meaning to be rude at all but you should read the SBS manual. It is very critical the server be your DHCP server, and if it is not, the wizards will fail, and the best practices analyzer will warn you of this. This is not just true of SBS but it is best to have any Windows server as the DHCP server for the following reasons:
-allows for more scope options than your router can offer. Some of which are necessary for SBS services
-secure dynamic DNS updates
-Proper DNS registration for older O/S clients
-central management
-DHCP integration for VPN clients
-eliminates the risk of the router automatically assigning the ISP's DNS, resulting is slow name resolution

You are correct that if the server is off line you will loose internet access. However fact is in a Windows domain regardless of whether you use the server or the router for DHCP the only DNS servers you can assign to your DHCP clients is your internal DNS servers. If you assign the router or ISP as even an alternate, you will have slow logons, name resolution issues, and the http://connect wizard for joining clients to the SBS will fail. The only way to retain internet when the SBS is of line is to add a second DC/DNS server to your domain.

#1 rule of Windows DNS, server and clients must point ONLY to the internal DNS server. ISP's DNS is added as a forwarder.

Ignoring best practices, I have never understood if the SBS is offline and you have lost file access, authentication, and e-mail (Exchange), why is internet so important. That is just a personal feeling.
When you set up the SBS did you run the "Connect to the Internet" and "Configure my internet address" wizards? This is very importnat and will also warn you about having DHCP enabled on the router.

Having said all of that it is not compulsary to ue the SBS for DHCP, but if not you should read the following:
http://sbs.seandaniel.com/2008/10/do-i-absolutely-have-to-run-dhcp-on-sbs.html
Zion PhilPresident

Author

Commented:
KenMcF. When I go to the link below, which is the one for the hotfix download it does not list Windows Server 2008, only Vista... and I am linking to it from the 2008 Server

http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=973243&kbln=en-us

Commented:
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both of these operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
Zion PhilPresident

Author

Commented:
RobWill, no worries. Your input is VERY VERY appreciated. Thank you for taking the time to break that down. To answer your question about "I have never understood if the SBS is offline and you have lost file access, authentication, and e-mail (Exchange), why is internet so important." I use another technique not to have all the eggs in one basket. I have each Outlook user connect to the exchange server, but also their pop account as default and tell the pop account to download in to the exchange .ost folder. This allows a complete sync of everyone's Outlook folders to the server, and also does not burden the exchange server with pop, and then the added benefit if the server goes down, everyone still has email. I did ""Connect to the Internet" and "Configure my internet address" wizards?". It did give warnings. Again thank you RobWill.
Zion PhilPresident

Author

Commented:
KenMcF. there were 14 updates on the server. I went ahead and did the 14 updates, and then did the registry edit and this fixed worked after restarting. Thanks a ton.
Top Expert 2013

Commented:
Though complex I can see your logic, but if the client has an external DNS added I GUARANTEE you will have DNS issues. Windows does not work as one would expect using the secondary gateway only when the primary fails, thus it causes lots of problems. This not my opinion but a Windows DNS design requirement. This does not necessarily apply to other O/S's such as Linux.

Zion PhilPresident

Author

Commented:
Much thanks for your advice and input. Will review my practices now. I only have the clients get handed the DNS's of the IP of the router and the IP of the server.
Top Expert 2013

Commented:
>>"I only have the clients get handed the DNS's of the IP of the router and the IP of the server."
                                                                                ^^^^^^^^^^

I hate to harp on it but guaranteed problem.
Sorry to be persistent, just trying to assist with the network design.
Cheers!
--Rob
Zion PhilPresident

Author

Commented:
Thanks Rob. Appreciated. Cheers!

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