Connect on-premise: Tunnelling and connectivity issues when running Stunnel 5.34
Customers running Connect on-premise with Stunnel to terminate SSL connections are advised to stay clear of Stunnel version 5.34.
A few of our customers reported issues where meeting connections would always fall back to tunnelling or at times meeting connections never complete when running Stunnel 5.34.
A quick lab test shows that versions 5.25, 5.33 and even the beta 5.35b4 do not cause this behaviour. You can find archived versions of Stunnel on one of the mirror sites listed on the Stunnel download page.