Smart Licensing authorization failure on ISE 3.1 patch 3

[adamscottmaster2013]

Keep getting this Licensing error message on a regular basis on the ISE 3.1 patch 3.  See attached.

There was no issue between the ISE and Internet around that time.  

[Marcelo Morais]

Hi @adamscottmaster2013 ,

 double check your Licensing configuration (at Administration > System > Licensing) special attention to Connection Method.

 If you are using a Proxy, double check your configuration at Administration > System > Settings > Proxy.

Note: try different Connection Methods to verify your issue.

Hope this helps !!!