Hi I’m running in Windows Small Server 2011 server standard (192.168.1.108), it’s my dhcp and dns server too, but suddenly all other users can’t get internet. My gateway is 192.168.1.1.
After a lots of tested I can saw that my server can’t get into the router (192.168.1.1), and also into some others computers, but some other computers answer the ping command. In fact the same computer with the IP 192.168.1.9 didn't answer, but with the IP 192.168.1.63, it response!
I have no routers, firewall, vlans or anything that disallow the traffic between computers, in fact when I changed the server IP address (192.168.1.109), I be able to ping the other computers and gateway, but if a back to the 192.168.1.108 the trouble comeback.
I hope you can help me with this issue
Ricardo
Best Answer
Check to see that you don't have DHCP running on the "gateway" and on the server. Also, check your DHCP on the server and make sure it is giving out 192.168.1.1 as teh default gateway. Generally, SBS wants to be the router so it will give out itself as the gateway address. "ipconfig /all" on a workstation should give you the IP of the DHCP server as well as the default gateway. Also, make sure it isn't a DNS issue. the gateway might be giving out public DNS servers which won't respond correctly to local domain names. so when you go to ping using the hostname, it will respond with the wrong IP or no IP at all.