02-06-2012 10:14 AM
Few months ago one of our X200's running Windows XP, started dropping the WWAN connection with a users Rogers Turbo Stick. A little testing found that if I didn't connect via VPN I could stay up. Once I set up the VPN connection, it would drop after about 8-10 minutes.
I tried the same thing with a Bell Turbo Stick, same issue. I restored the laptop to an earlier point in time, and it seemed to work okay, but by the time I got all my updates installed the issue was happening again. We thought it was the laptop as no one else had complained, so we got the user a new laptop.
Now I've got another laptop displaying the same issue, this time with a Novatel P720 PCI-X card. I don't have any issues with our HP laptops, just affecting our Lenovo's.
I've rebuilt a laptop from scratch, tried different VPN Clients, but not getting anywhere. Again, no problem with just WWAN coverage, but the whole WWAN connection closes within ten minutes when I fire up the VPN.
Any help would be appreciated.
Solved! Go to Solution.
02-15-2012 06:59 AM
Go into Services and see if you have Cisco EnergyWise service. If so, stop, set to Disabled and reboot.
I've heard that some VPN/carrier combinations see the traffic of the service as an attack and drop the connection.