Hi Marvin,Thanks for the suggestion, the asdm image disk:asdm.bin worked. ASDM is now working on my the primary ASA firewall. Thank you.

We only rebooted the ASA. And since then the ASDM stopped working.Thank you very much,Peter AdekeyeWide Area Network Engineer | MISemail: padekeye@dh.orgPhone:267-742-2378[cid:image008.gif@01DA4959.0EBA0540]Doylestown Health | 595 W State St. | Doyle...

ciscoasa# show flash <- do you see the ASDM image ?ciscoasa# verify flash:/asdm-xxxx.bin <- check if the image is OK - Yesciscoasa# show adsm image <-check what image run now - Device Manager image file not set

Hi Marvin, thanks for your suggestion. I am currently having issue with GUI via ASDM on my ASA and the google search keeps bringing to this page. Any suggestion for solution will be appreciated. 

vpn# show asdm imageDevice Manager image file not set That is the output and asdm is not working again