After updating the ASDM to version 7.18(1.152) (OpenJRE) on my 5506-X ASAs and installing the new launcher on my PC (v.1.9(5)) I noticed that it takes a long time until the ASDM is fully opened. I enter the IP, user and password, login and then the ASDM is displaying "Checking the launcher version compatibility... done" for several minutes.
I found out that the network traffic on those firewalls goes up while trying to connect, which makes me believe that the ASA is sending the whole ASDM image (just a guess) to the client for some reason. Maybe because of the new support for signed images? Waiting several minutes until I can actually do something is a bit too long, especially on sites with a weak internet connection. Is there any fix to this? It's one reason that keeps me from updating more appliances at the moment.
