Cisco ASDM 7.14(1) asdm web access not working

[GClarkeEQLS]

Hi,

Was wondering is someone could assist me. We have 2 ASA 5516-X FirePower appliances, I upgraded them to the lasted ASA and ASMD images but due to LDAP certification based authentication error had to roll back the changes (another issue for another time). The issue I am facing now is that for one of the ASAs, I am no longer able to access it via ASDM nor can I navigate to it via HTTP, I can only access it via CLI (putty).

If I reboot the ASA, I get a very small window where I can connect to it via ASDM (and navigate to the admin portal via HTTP) but after 10secs, connection seizes and times out.

I have checked that aaa is configured correct by comparing to working ASA - I have also checked that HTTP/ASDM management through outside and inside interface are correct.

Finally, the running config hasnt been modified during upgrade and rollback so stumped at to what has happened.

Any help/suggestion would be greatly appreciated.

Thanks

[Max Jobs]

If I had any new news, I would appreciate it if you would inform us here.

[Max Jobs]

Here is some tips for you:

Check ASDM Access Configuration:

show run http
show run asdm

Check Interface Connectivity:

show interface <interface>

Check Access Control Lists:

show access-list

Check for ASDM Timeout Configuration:

show asdm sessions

Verify ASA Logs:

show log

Restart ASDM Service:

no asdm history enable
clear configure http

If none of these steps resolve the issue, you may need to engage Cisco TAC (Technical Assistance Center) for further assistance. They can provide in-depth troubleshooting and support for ASA-related issues.