Can't connect to internet

[Joel]

I have two windows 2000 servers one that is a terminal
server and one that is a PDC. In both servers I have two
3Com NIC's. One of the NIC's on the PDC is connected to
the local network and everyone can connect to it just fine
this is also where my internet connection is as well. The
IP Address for the NIC is 192.168.1.2 and the IP address
for the Router is 192.168.1.1. The other NIC connects
directly to the Terminal Server through a cross-over cable
using TCP/IP because the two NICS that are connected
together are both Gigabyte NICS. So the IP Address for
the PDC's Gigabyte NIC is 192.168.0.1 and IP Address for
the Terminal Server's Gigabyte NIC is 192.168.0.2 both
have the same subnet mask and the Default Gateway is setup
for the PDC of 192.168.0.1. No DNS Entries. After a
period of about 30 minutes the PDC can no longer go on the
Internet. I have to go in physical change the Default
Gateway of the Local Area NIC from 192.168.1.1 to any ip
address I want then when click ok and then go back in to
change it back to 192.168.1.1 I can get back on the
internet with no problems. The only thing is in about 30
Minutes I lose the Internet connection again. Please help
this is my last resource before calling Microsoft and
paying big.

Thanks in advance.

Joel

 

[jason]

have u checked for viruses ?

 

[Doug Sherman [MVP]]

Four things to check:

1. On the PDC - Right click on My Network Places, select Properties, select
Advanced, select Advanced Settings. Make sure that the connection for
192.168.1.2 is listed first in the binding order.

2. Open the DNS mmc, right click the server, select Properties. On the
Interfaces tab, make sure you are providing DNS only on the 192.168.1.2
address.

3. I assume you mean that the TS machine has a default gateway of
192.168.0.1. The PDC NIC connected to the TS machine should have no
gateway. Also, when you say the TS machine and the PDC's 192.168.0.1 NIC
have the same subnet mask - this must be 255.255.255.0 - any other mask is
going to cause you problems in this scenario.

4. On the PDC's 192.168.0.1 NIC, clear the check box for Register this
connection in DNS, and enter 192.168.1.2 as the primary DNS server.

Doug Sherman
MCSE Win2k/NT4.0, MCSA, MCP+I, MVP