ASDM Download

[sliang]

After we implemented two factor authentication, Cisco DUO for ASA administration, we are no longer able to download ASDM from the GUI.  When we go to https://x.x.x.x, we get a prompt for username and password, but was not able to download the ASDM from the firewall. Any suggestion?

[balaji.bandi]

I do not see any reason 2fa auth wil block ASDM download, may be any security end device restrictions?

what is the error message ?

[Marius Gunnerud]

are you using the default port of tcp/443?  Could you try changing it to tcp/4433 (or any other port of your choice) and then see if you are able to download.  It might be a port assignment conflict

[sliang]

I figured it out.  I removed AAA, ISE/DUO authentication that fixed. 

Thank you.