On attempt to open Office365 application instance the following error appears in browser console:
code=500: Connection reset by peer
CCP > Office365 tab cannot be opened as well.
Connection issue between Management Node and Office365 Endpoint host.
1. Firewall Requirements are met.
2. IP and Domain Restrictions set up correctly. Also, check "Allow all" option for the test purposes.
3. Gateway site bindings are OK in IIS: contain assigned IP address, proper certificate.
4. Check Endpoint database user. Compare user password from
web.config file with
Security settings in MSSQL Management Studio interface.