I have several externally connected users reporting that when logging into the VMWare Horizon Client app that in exactly 1 hour they either are getting tunnel error or getting disconnected from their logon session. 

I have no answer. The virtual machine they are connected to is not affected. Only their connection to it. 

This happened for me as well. However, if I am logged on to my organizations network, VPN or internal network, no disconnects. 

We have a VMWare Service Request in for now, # 23438443306

Anyone else experiencing this issue?