client machines are not connecting particular SSID

[vidya_sagar]

Getting entrasys related pop up message while connecting Wifi SSID in client machines and unable to connect SSID

please refer the error messages in end client machine while connecting Wifi SSID

This is the Net sight Log while connecting particular client

[Doug]

Vidya,

Are you all set with your issue? Did what Evan provided resolve your issue?

[Evan_Kuckelheim]

Look at this article for more info.
https://gtacknowledge.extremenetworks.com/articles/How_To/How-To-Update-NAC-Internal-Communications-...

[Evan_Kuckelheim]

Are you using a self signed cert? Looks like it is. You need to use a signed cert. If this is 802.1x there is an option to verify the server's identify by validating the certificate. You can turn it off to remove this error. Although you should be using a real cert.