https://community.cisco.com/t5/network-security/lost-license-key/m-p/2868547#M155103 <P>Send an e-mail to <A href="mailto:license@cisco.com">license@cisco.com</A> with your CCO login &amp; the serial number of the appliance and tell them to get the license key re-generated.</P> Sun, 03 Apr 2016 23:40:21 GMT Leo Laohoo 2016-04-03T23:40:21Z https://community.cisco.com/t5/network-security/lost-license-key/m-p/2868546#M155102 <P>I'm hoping someone can assist me. &nbsp;I purchased a used ASA 5510 last year with an advanced security license on it. &nbsp;Recently I had a corrupt flash and had to format things. &nbsp;Unfortunately the advanced license key was lost with the format and the base license is now installed on this ASA. &nbsp;How do I recover this license if I never registered this ASA nor am I the original owner? &nbsp;Shouldn't Cisco have the license key on file for this serial number? &nbsp;</P> <P></P> <P>Thanks for any help you can provide. &nbsp;</P> Tue, 12 Mar 2019 07:34:31 GMT https://community.cisco.com/t5/network-security/lost-license-key/m-p/2868546#M155102 leon.bowers 2019-03-12T07:34:31Z https://community.cisco.com/t5/network-security/lost-license-key/m-p/2868547#M155103 <P>Send an e-mail to <A href="mailto:license@cisco.com">license@cisco.com</A> with your CCO login &amp; the serial number of the appliance and tell them to get the license key re-generated.</P> Sun, 03 Apr 2016 23:40:21 GMT https://community.cisco.com/t5/network-security/lost-license-key/m-p/2868547#M155103 Leo Laohoo 2016-04-03T23:40:21Z