CA2600 doesn't not support MPE. When designing the CA2600 synthesizer we decided not to add MPE support due to a number of factors. The following Cherry Audio synths do support MPE mode: DCO-106 Dream...
Try running the standalone version of CA2600 to see if that allows you to log in. Sometimes a firewall or other security software might be blocking your DAW from accessing the Internet. Of course, als...
To locate your log files, launch CA2600 and click on Settings followed by clicking General. Click Show Log Folder. Please zip up all your log files and attach it to your reply. If you can't open CA260...