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user_904222
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Jun 18, 2026

VPN Communication Error with F5 BIG-IP Edge Client

While using the F5 BIG-IP Edge Client (F5 RemoteAccess), the session timer configured on the server is set to 8 hours. The user continuously generated traffic by sending PING requests to DNS.

However, after approximately 10 minutes, a VPN communication error occurred.

The attached file contains logs up to the point of failure. I observed that a GetBestRouteToDestination error occurred, after which communication with the internal VPN network was no longer possible. At this time, I am unable to determine whether the communication failure preceded the error or vice versa.

I try F5 official support, but I don't have any license, so I can't anything.

I try contact distributor in my country, but they not response.

Please help us resolve this issue and ensure stable, continuous communication.

1 Reply

  • Hello,

    Can you check the Session Update Threshold and Session Update Window values in the Access > Connectivity / VPN > Network Access (VPN) > Network Access Lists > [Your Access List] > Network Settings menu. Any settings other than the default values(default 0) may trigger an inactivity timeout(default 900 seconds).

     

    Session Update Threshold: Defines the average byte rate that either ingress or egress tunnel traffic must exceed, in order for the tunnel to update a session. If the average byte rate falls below the specified threshold, the system applies the inactivity timeout, which is defined in the Access Profile, to the session.