Certificate errors after applying 6.4.9

[ikmarwright]

The error is intermittent since applying 6.4.9 to 6.4.8. The errors appear in FortiClient VPN versions 7.0.1.0083 and 7.0.5.0238. Reinstalling the client software makes no difference. Reinstalling the certificate makes no difference. It is rare, but it is happening to many users.

Just starting to track it down, but wondering if anyone else has noticed this.

[jim3cantos]

Do you mean FortiOS upgrade to 7.0.6?

[balladmachine]

How's your experience been with 7.0.6?

I updated to 6.4.9 over the weekend and yesterday had the first instance of the issue you're talking about. Existing connections were maintained, but any new connection was rejected. CPU use was also spiking during this period. After 30ish minutes, it resolved itself.

[ikmarwright]

Ours never resolved itself in 6.4.9. It did get rarer, but it would still pop up from time to time. 7.0.6 was been entirely stable for us so far. 

[ikmarwright]

Sorry, yes, I mean FortiOS. I had tried four different 7.X FortiClient versions and it made no difference.