Limited or no connectivity to DC

[FRIeZa]

Hello, this is my first question here, as I can not pursuade google to give me the answer =)

I am currently self training for system administrator at my company. I set up a DC (domain controller) and 2 client comp. This is the 3rd domain I created (as I messed up something with first two). Btw, I am using Windows server 2003 SE.

To try and be direct: yesterday everything was working fine, I was playing with group policy, active directory and so on...

I came today into office and noticed something is wrong with my little system =)

Both computers have limited or no connectivity! Why? Nothin was changed, I dont think anybody was messing with my little test system.

I was able to get rid of that error only if I manually added IP and DNS adresses, but even then, something was wrong, because when I tryed to connect remotely, I would get the message that my domain is not available? =)

I am out of ideas.. I think something went wrong by itself on my DC but I can not figure out what.. what could be causing this malefunction for my DHCP or DNS servers?

[Variable]

Remove the group policy settings you were working on. Look at the event log on the DC for anything useful. Always check the event logs first. Funny how people never do this and this is the main source of troubleshooting info.

[FRIeZa]

I dont get much info from Event log.. it just says it cant load group policy? I also google for the problem, or the problem ID; but I get nothing ;)

[Ghost_Hacker]

Check the event log at the DNS server (or DC if one computer houses both) this is where you'll find info for this kinda problem if you think it is DNS related.

Here is a tool (http://support.microsoft.com/kb/321045) you can use to help work with this problem. Use the ad switch (explained in the post) to test DNS SRV records for your domain.

Good luck :)