PPP dialup kills Internet cable connection [Archive] - SpeedGuide.net Broadband Community

View Full Version : PPP dialup kills Internet cable connection


RandyB
08-22-02, 07:00 PM
Win XP Pro. Cable modem connection via Linksys router to attbi.
Cisco VPN client installed, used occasionally over the cable modem for connection to a WAN. Using netbeui for local file sharing, ip for the Internet (no file sharing). Brand new Dell Dimension 4500.

I just added a modem and dialup ppp connection to this setup. I dialup and connect to a server. After I disconnect, I no longer can connect over the cable. Ipconfig shows the same status, except for the addition of the ppp connection. Since I am disconnected, the ppp connection shows no ip address (that is, 0.0.0.0).

If I ping my dns servers, I get no connection. This suggests it isn't a dns problem, since I'm pinging an ip address. After a reboot, everything works fine. The problem occurs without ever using VPN on the cable.

I compared setup to my older machine, running all the same software and OS. Everything I can see looks the same. On the old machine I can switch back and forth between dialup and the cable, no problems.

My old machine (also XP Pro) did not have QoS on it so I uninstalled QoS from the new machine. I then uninstalled and reinstalled the vpn client to make sure that it wasn't installing or relying on QoS. I also set the QoS bandwidth to 0, though this shouldn't matter after uninstalling.

Thanks for any help.

RandyB
08-23-02, 02:32 AM
Turns out the problem was caused by ZoneAlarm v. 2.6. I upgraded to the new v. 3.1 and the problem is gone.

The strange thing is that the older version of ZA does not cause the same problem on my other XP Pro machine.