Error when updating remotely

Options

Hello!

I'm encountering an error when attempting to upgrade Teamviewer remotely on several of our systems:Capture.PNG

I checked the TeamViewer log and have copied the relevant part here:

2019/06/19 13:14:05.734 2372 3656 G0 Trying connection to pos1, mode = 1
2019/06/19 13:14:05.734 2372 2116 G0 CLogin::run()
2019/06/19 13:14:05.734 2264 772 S0 CT39 CT.TM_GWout.pos1:5938 - CT39 - S39
2019/06/19 13:14:05.734 2264 772 S0 CT39 CT.Connect.pos1:5938
2019/06/19 13:14:11.734 2264 772 S0!! S39 NC.connectTcp(): connect timedOut to: pos1
2019/06/19 13:14:11.734 2264 772 S0!! S39 NC.Connect.RetryTcp, Err=0
2019/06/19 13:14:17.734 2264 772 S0!! S39 NC.connectTcp(): connect timedOut to: pos1
2019/06/19 13:14:17.734 2264 772 S0!! CT39 CT.ConnectFailed: 1
2019/06/19 13:14:17.734 2264 772 S0 CT39 CT.Disconnect
2019/06/19 13:14:17.734 2264 772 S0! CT.ConnectTeamViewer.ConnError.
2019/06/19 13:14:17.734 2372 2116 G0 CLogin::run() leave

I have several sites experiencing the same problems when trying to update remotely.  Is there another method for upgrading a system remotely?