can you please let me know what do you mean by saying:
I can usually work with Toad for 1-2 hours before this problem starts. However, once it starts, it does not stop and restarting/rebooting has no effect on the problem. how often the crashes happen to Toad once the problem starts? every 5min/10/1hour?
I can work for some time (usually 1-2 hours) before the problems begin. This could be related to the DSL line or the VPN servers but I don’t see problems with any other applications that I am using. I normally have MS Outlook, Remote Desktop, Visual Studio, Excel, and other applications running. When Toad starts crashing, it will happen ever 5min or less. It gets to the point where it is continuous with 20 or more Toad error windows stacked up.
as far as I understand Toad works OK for you if you are not on VPN connection. Right?
As long as I am not using the VPN connection, Toad does not crash. Also, if I am only connected to my local instance of SQL Server, Toad does not crash.
Also can you notice any difference in activities you perform on VPN/local network?
I normally have several other applications open when I am connected to the VPN. I do not notice any issue with any of these other applications. I do not notice any general slowdown or connection issue. Also, I always use a wired connection to the DSL router so this is not related to wireless connection issues.