intermittent issues with proxy server error (80000000) in Outlook 2010. SSL Offloading on LTM.
Hello, we are having intermittent issues with the following error in Outlook 2010:
There is a problem with the proxy server's security certificate, . Outlook is unable to connect to this server. (80000000).
This begun recently since we enabled Outlook Anywhere for all our clients (in preparation for upgrade to Exchange 2016).
According to this thread on MS it is suggested that it could be related to the Server SSL profile on the VS:
error-message-on-ol2010-problem-with-proxy-certificate-80000000
We are using LTM VS with SSL offloading on the F5 (only using HTTP to the backend CAS array), LTM version 12.1.2. Exchange server 2010.
When checking the MS docs the 0x80000000 error suggests "FLAG_SECURITY_CHANNEL_ERROR". See https://support.microsoft.com/en-us/kb/923575
Anybody with a clue?