Last Modified: Oct 19, 2026
Affected Product(s):
BIG-IP DNS, GTM
Known Affected Versions:
17.5.1.3, 17.5.1.4, 17.5.1.5, 17.5.1.6, 17.5.1.8, 17.5.1.9
Fixed In:
21.1.0.3, 17.5.1.10, 17.1.3.6
Opened: Dec 18, 2025 Severity: 3-Major
Removing the monitor from the virtual server can leave the DNS generic server stuck in “Offline (Enabled) – No enabled virtual server available.”
The generic server shows the same status as the Virtual Server.
Remove a monitor from the Virtual Server and use a Generic Server type.
None
The status synchronization behavior was corrected so that the generic server reflects the state of the associated virtual server after the monitor is removed.