Bug ID 1410877: App Tunnel can connect but server name resolution fails during a few minutes on reboot

Last Modified: Apr 28, 2025

Affected Product(s):
APM-Clients APM(all modules)

Fixed In:
7.2.4.6

Opened: Dec 06, 2023

Severity: 4-Minor

Symptoms

DNS resolution fails for a few minutes upon reboot.

Impact

Causing delay while accessing applications immediately after reboot,

Conditions

Reboot the system and connect the apptunnel and try to resolve the DNS queries w.r.t to static entries created on APP tunnel resource.

Workaround

Open cmd.exe and run ipconfig /flushdns

Fix Information

DNS cache is leading to corruption in some cases so during DNS relay proxy thread initialisation clearing the DNS cache.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips