Internet connection problem

[Jmhm17]

Hi at the school i work at we have a 802.11b wierless network and a standard tcp/ip network (dhcp) and Im having a problem with some students connecting to the internet on the laptops. Now the problem i think is with campus manager, if none of you know campus manager is an authentication program that lets me turn certain users off and what not. Now my problem is they get relly good connection to an accesspoint but they cant connect to the internet, I cheaked with campus manager and they are registerd, I also tryed to connect them with the hard wire (patch cable, RJ45, CAT 5 cable) and i got nothing i got a lan connection but no internet. Their wierless and their CAT5 connection are set up perfect. Now on the other hand one of the kids has bridging enabled so i disabled it becase in the past i have noticed we have had some problems with it, i was able to disable it but not delet it, i got an error. and it wont deleat. and this is ware i am. im stuck. some one help me please, I have tryed everything! Oh but the weird part is i can connect to the register website for campus manager but nothing else. Im really stuck can some one help me.

 

[Jmhm17]

thanx for the speedy replys.....

 

[MaxPipeline]

Perhaps the problem is with the IP address assignment. What IP address, subnet mask and default gateway are they getting? Is it a valid address within your campus network? Does a tracert show the first hop going to the proper location?

How about DNS? Could students ping their DNS servers? If so can the PC resolve DNS (nslookup from command prompt)?

 

[Jmhm17]

They are all running dhcp so the addreses are random. and i cant ping anything.