Very Frustrating! is it a DNS Problem??? Please help
Posted on 2006-11-01
Hello, I am having a very annoying problem with my Windows 2003 server Domain Controller/DNS Server/DHCP Server (same machine does all this).....it boots up fine, no errors in event viewer, all clients authenticate fine and can access the internet fine. However, every 5 or 6 hours, all clients and the server lose "partial" internet connectivity. I say partial because even though clients cannot browse the Internet ( they get the "this page cannot be displayed" message in their browser),their msn messengers (if they were logged in to msn messenger) still work, they can still chat with their contacts...it is weird...they don't get disconnected from msn messenger but when they go to a website using either IE or Firefox they cannot browse the net, it's like if they were offline for browsing websites....would this mean that maybe a port is being blocked? port 80 maybe?? ..
If I reboot the Domain Controller they can browse again the internet fine with no problems for another few hours until it happens again...is this a DNS problem?? There are no error in event viewer...Should I check or test something?? Please help...