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eemmpph

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After I connect via VPN to my office, I get disconnected 90 seconds later. Why is that?

My office was on AT&T DSL and I was able to connect (from my home computer using a vpn connection) for hours without any problems.

Two days ago, AT&T replaced the DSL with Business Fiber Internet service and a new router.

Today, I can VPN into the office but can only stay connected for about 90 seconds.

Here are three entries of the system event log on the office server.

1. Successful connection

 User generated image
2.  VPN for 1 minute 18 seconds, then disconnected

 User generated image
3.  Disconnection event

 User generated image
What could be the problem?

Thanks for your help.
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John
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eemmpph

ASKER

At the recommendation of Dell Tech support, I purchased a new Netgear Router.  

The AT&T Modem/Router was set to "passthrough" mode, which "sends" everything (including VPN packets) to the Netgear Router.  

I opened a VPN port on the Netgear Router.  The VPN issue was solved.  No more disconnections.
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ASKER

AT&T changed our static ip address, dns address.  A new router solved the problem after determining what the new addresses were.
Thanks for the update and I was happy to assist.