We have two ASA in an active/passive failover configuration
When a failover occurs (by command or by failure of an interface) the http server stops to accept connections from ASDM.
We see this message on the console:
INFO: Restarting HTTPS server.
ERROR: Unable to stop HTTPS server, Restart Failed.
Switching to Standby
As a workaround we can connect to the primary asa and
configure terminal
http server enable
After this change, everthing is ok.
We connect with ssh or asdm via the management interface.
The management interface has an additional standby ip, the other interfaces have only one ip.
ASA Version 9.19(1)
Do you have some hint?
- Joachim
