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After removing this extension "Advanced SMTP Settings" I haven't seen this error anymore. I also updated one of five other outdated extensions that I don't remember the name. I was on version v20.6 and now on v20.7.29305.7496 and so far so good. Windows Server 2012 r2, self-hosted, 110 Unattended devices.

I kept these extensions and so far no problem:

- Additional General Information - Version: 1.5.8

- Advanced Configurator Editor - Version: 1.2.18

- Guest Full Installer Builder in Active Panel - Version: 1.5.2

- Guest Session Starter - Version: 1.0.105

After removing this extension "Advanced SMTP Settings" I haven't seen this error anymore. I also updated one of five other outdated extensions that I don't remember the name. I was on version v20.6 and now on v20.7.29305.7496 and so far so good. Windows Server 2012 r2, self-hosted.

Having the same problem CWC v20.6.28954 (self-hosted), Windows Server 2012 r2. After no support for Linux since version 19.4, I migrated to Windows and it still not working properly. What's going on?

How did you get version 20.2 for your Ubuntu server when the latest version available for Linux is ScreenConnect_20.1.27036.7360_Release.tar? 

I would love to try version 20.2.27450.7387 on my Ubuntu server if it was available for download.

I'm losing my hope on this. Here's what I got from chat support: 

Routed Queue : Support - ConnectWise Control >> Support
When will ScreenConnect_20.2.27450.7387 be release for Linux because v20.1.27036 is not reliable
02:16 PM - lslater: Hi Gilvan
02:18 PM - xxxx@gmail.com: I"m running ScreenConnect_20.1.27036.7360 on Ubuntu 18.04.4 LTS and having this message "Internal Server Error" when I try to log in several times a day. I have to reboot the Server and sometimes I can login but the problem comes back later on
02:20 PM - xxxx@gmail.com: I was hoping that the Stable ScreenConnect_20.2.27450.7387 would solve the problem but there is no Linux version only windows. It looks like Linux support is not important anymore. Is that the case from now on?
02:24 PM - lslater: My apologies for the inconvenience. I have no had a instance of this happening unfortunately so it does not seem to be a common thing.

I noticed today that ScreenConnect_20.2.27450.7387 is now stable but for Windows only. I've been waiting anxiously for this stable version for Linux since the so-called stable version 20.1.27036.7360 has been crashing several times a day.

Are you guys abandoning Linux support moving forward?

Yes, it's working now. I did this change before updating to the new version just to make sure my old version would still work. I only had to change the web.config. No changes were necessary on nginx.conf besides "sudo systemctl reload nginx". As soon as I reload nginx my old version was working like before. I went ahead and did the update to v.19.5.26194.7292 and had no problem loading my web portal.

This latest stable release ScreenConnect_19.5.26194.7292 still didn't fix the problem.

Yes. Please. Let's Encrypt!. It's long overdue this feature.

Upon checking the download link today

https://www.connectwise.com/software/control/download

I noticed the Linux version 19.5.26030.7282 was removed from the download link. Finally, the developers realized that this so-called "stable" release wasn't stable at all. Let's hope the next version will fix this for all.