I have a Dlink 502T Modem that will access via USB without any problems.
The LAN requires me to use static IP addresses (192.168.1.5 and 192.168.1.4) on each computer so I cannot use Internet sharing.
The LAN originally was set up by x-over cable, and I have now installed a TPlink TL-SF1005D switch with straight thru cables - the LAN works fine.
When I plug in the modem into the switch (USB unplugged) i cannot access the internet from either computer. Remove the ethernet cable and reconnect the USB all OK.
ISP refuses to help because they claim LAN problem. They say we are connected and the problem is on our end.
Using browser modem interface have changed ethernet IP address to 192.168.1.50 but still no success.
Modem diagnostics indicate that ISP and ADSL connection is all OK.
I have disabled windows firewall and AVG antivirus without success.
I have also tried directly connecting one PC to modem via ethernet with the same results.
I have also tried another new TPlink ADSL/router but with the same result. LAN works OK over eh=thernet but Internet not OK.
Is there some setting in XP that blocks PPPoe connection?
What else could be blocking the connection?
Edited by Longy, 09 March 2008 - 06:57 PM.