failed login attempts after upgrade on LTM

I have a LBT 3600 with version 12.1.2 in a lab environment, I have the validation users via TACACS, when access via https works without problem, but when I try to access via ssh, the equipment does not allow me to access, I receive an access denied message.

This configuration is running identical in another LBT 4000s with version 13.1.0.1 and the same user is validated via https and ssh, without any problem.

Anybody knows if there is any recommendation to configure the access via ssh on this 12.x version?, I have read and applied the recommendation on the document "K13309: Restricting access to the Configuration utility by source IP address (11.x - 13.x)" with negative results.

Thanks for your help!