"Internal Server Error - Error verifying handshake" When trying to use desktop agent

Hi. I’m just trying Postman out, but the desktop agent won’t connect. Looking in F12, the above response is what I get back from it.

HTTP/1.1 500 Internal Server Error
Access-Control-Allow-Origin: https://web.postman.co
Vary: Origin
Date: Tue, 27 Apr 2021 18:44:37 GMT
Connection: keep-alive
Transfer-Encoding: chunked

Internal Server Error - Error verifying handshake

I’m really not sure how to proceed to troubleshoot this. The agent is definitely running. I’m trying to use it on something running internally, so the cloud agent isn’t an option as the API isn’t visible to it.