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Mobile VPN Software Loses the VPN Connection After 5 Minutes on a Vista PC

A Watchguard X20e has been installed and V10.04 of the Mobile VPN Software installed on two laptops; one running XP Pro and the other Vista Business.

The XP Pro laptop establishes the VPN connection and this continues working until the connection is closed. The Vista laptop however, which is virtually an identical model, connects normally but after approximately 5 minutes the connection drops for no apparent reason. If the IP address of the remote server is pinged continuously, then after perhaps 50 'reply from' messages a 'timed out' message appears instead, even though a mapped drive is being accessed at the time.

If the VPN software is re-connected, then everything works for approximately 5 minutes again.

What could be causing this and how can this be resolved? The Firewall is a new X20e model and the VPN software is the current version. Also the same user profile file is being used on both laptops, which also works fine on a third XP Pro PC.

 
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itcroydon
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itcroydon
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4 Solutions
 
dpk_walCommented:
What about ISP; are you using same ISP at both location; just to verify, is it possible for you to take the Vista laptop to the XP laptop location and check if this makes any difference.
Can you also sanitize [remove/mask first two octets of public IP; remove/mask all shared keys/passwords/usernames/MAC addresses] and paste some logs from the client and X Edge when the disconnection happens; this would help in determining the exact cause.

Please update.

Thank you.
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itcroydonAuthor Commented:
OK, the two laptops are being tested in the same location, therefore it will not be an ISP issue.

Where I can locate the log files?
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dpk_walCommented:
On the MUVPN tray icon; if you right click you would have option to view the logs.

Thank you.
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mega666Commented:
Hi,

I had a similar problem. Not sure if in your case this will help as my connection was dropping after 12 min. But here it goes:

Add Exceptions in Windows Firewall:
Allow :  UDP - port 500
Allow:   UDP - port 4500

Try to reconnect. In my case this helped. Let  me know if it worked :)
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itcroydonAuthor Commented:
OK, this issue is definitely being caused by the Windows firewall. If I switch off the Windows firewall everything works normally, but opening the above ports does not seem to help.

Any suggestions as to what other setting / port needs to be adjusted?
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mega666Commented:
And you have definately opened the UPD ports right ? just asking because as default the option which is ticked is TCP.
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mega666Commented:
Another solution for you would be to create a PPTP connection between Vista and the Firewall.

You will need a PPTP account created on the Firewall (it doesn't uses a license so you can have as many PPTP accopunts as you like).
And also you will need to know your Firewalls External IP (i knwo it's obvious but thought I'd put in full info ;P)
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dpk_walCommented:
You can try opening protocol number 50/51 [please note these are protocol numbers for ESP/AH and not port numbers]

Also as mega666 said, PPTP and SSL VPN are other available options.

Thank you.
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