Hi There,
Quick solution for error :
"ASDM was unable to load the firewall's configuration. Please check connectivity to the device or try again later"
Two bugs :
1-https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuw54048/?rfs=iqvred
-Check compatabilities - ASA-ASDM-SFR
-Upgrade SFR to at least 6.0.2, however I recommend 6.2.3.
-Update the latest Java.
2-https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj56189/?rfs=iqvred
-Check Java logs, it will show you; unsupported operating system. The Supported OS are: Windows XP (SP2), 7, 8, 10, Vista, 2003 (SP1), 2008, 2012, Mac OS X & Linux- your current OS: Windows Server 2016.
Quick solution : Change to another operating system.
Hope this can help you.
Oscar Alvarez
Cisco Security TAC.
