Smoothwall randomly showing cert errors

[Sheridan]

A few staff have reported a seemingly random issue where a browser (chrome or edge) will show the certificate error - as if the Smoothwal cert wasn't installed on the PC (which it is) and they get all sorts of errors/warnings so can't use the browser

 

In the logs we see a lot of these 200 - Sucess but in red

 

Oddly the error seems to go away after a logoff and log back in - its pretty random where its hit (same OS level)

 

We do https inspect search engines - and the cert is deployed network wide so I can't find a reason we're seeing this?

[tom_newton]

Youve not got some folks without a cert using cloud filter have you?

OR maybe there's an AV or something interfering? 

Be good to show that cert the user gets when it fails

[E_G_R2]

We had similar on a very few machines.  It was a corrupt registry.pol file.  We renamed it and then the certificate installed.