Link to home
Start Free TrialLog in
Avatar of paurat
paurat

asked on

Windows Mobile 6.1 will not keep a VPN connection

We have around 20 HTC Touch Pro mobile phones trying to create a VPN to the main office server. The VPN connects ok, and we can ping the server ip address from the phone. The problem is as soon as IE or Opera is opened to connect to the Intranet, the connection is lost.

Obviously the firewalls are ok to the traffic as RRAS is showing the host is active, and the phone can ping the server - until IE tries to connect the the server name or IP Address.

I'm just about at my wits end with this, so any help would be greatly appreciated.
Avatar of Rob Williams
Rob Williams
Flag of Canada image

Afraid it is not much help as I have no idea how to change on a mobile unit, but I'll bet it is related to too high an MTU value for the connection.
Avatar of paurat
paurat

ASKER

Thanks for the possible solution. I have now found the registry key required to add the various values and tried values from 1400 to 1500 in multiples on 10. Same problem!

The connection works exactly as expected until IE is opened and pointing to the server IP Address.
ASKER CERTIFIED SOLUTION
Avatar of Rob Williams
Rob Williams
Flag of Canada image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of paurat

ASKER

Thanks. A point in the right direction and a few tweaks eventually landed me at 1360 MTU as being reasonably stable. Thanks again.
Thanks paurat. Sorry I couldn't be more helpful with specifics, but glad to hear it is working.
Cheers !
--Rob
Robwill,
You said glad to hear it is working... but I don't see a solution here.  Does anyone have a solution for this?  I can't keep my HTC touch pro connected either on Windows Mobile 6.1
ProbablySlackin, one of the features of Experts Exchange I do not like is the ability for the author of the question to post a comment in "accepted Answer" post that only they and the  expert who answered the question can read. Often the final solution is there. I hope I am not breaking any rules, or offending paurat, but they posted the following "...a few tweaks eventually landed me at 1360 MTU as being reasonably stable...."