Autoprinter

Should Autoprinter run on Server 2019? I set it up this morning after installing .Net 4.8 but am getting a message as follows:

Screen Shot 2022-07-23 at 13.42.47

I’ve checked my firewall for the server IP and see traffic allowed to and from pusher.com; I’ve also disabled the Windows Firewall on the server, but no success.

I then tried to revert to AutoPrintr but it wouldn’t accept my Syncro credentials.

I got the same error when I installed it for the first time a few days ago. I don’t intend on using it so I deleted it.