VPN disconnect after about 5 minutes after recent upgrade

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Anders Jelnes

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May 22, 2026, 4:45:21 AM (5 days ago) May 22
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Hi,
First of all this is a long shot, just asking if any one are aware of changes in newer versions of WEBADM etc. that could cause disconnects in VPN connections in a setup using:
WEBADM
NPS (Microsoft)
Watchguard SSL-VPN

It looks like the VPN is trying to reauth, fails and then disconnects. The setup has worked flawlessly on older versions of WEBADM for over a year, but after upgrading this week to the newest version of WEBADM the issues started occuring.

Initial authentication works fine MFA is accepted and everything is fine, but after about 5 minutes VPN disconnects.

So I have a suspicion that it's not a bug but rather changes or new options in configuration on WEBADM that I haven't been aware of.

I had to do a roll back before I had time to get any logs etc. so this is as stated first a long shot and I have no expectation of anyone digging in, just hoping that maybe someone had the same issues and know what to do.    

Benoît Jager (RCDevs)

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May 22, 2026, 5:02:52 AM (5 days ago) May 22
to RCDevs Security
Hello,

In case you have the possibility to retry, just provide with the logs of webadm (/opt/webadm/logs/webadm.log) and radiusd (/opt/radiusd/logs/radiusd.log and /opt/radiusd/logs/requests.log).

Can you provide your current and upgraded versions of WebADM and Radius bridge, so that we can check for any changes that could be causing your issue?

Not related to the issue: is there a reason you are making Watchguard using NPS as RADIUS backend, and not directly radiusd servers of WebADM?
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