Another Error Code 4

[Error_Code_4]

I have been listening to spotify at work for a while. Just this week I got the error message 

"No internet connection detected. Spotify will automatically try to reconnect when it detects an internet connection (error code:4)."

This issue is specific to me at the office, everyone else can listen fine. It is also only specific to the downloaded app, I can listen on my phone and on the web player. So it is not blocked by work and not an issue with my account. Although I havent tried to play on my own pc yet with the app.

I have tried many things including unplugging the internet connection, ininstalling and reinstalling and many other "solutions" to the numerous complaints about this issue posted here. None of these have worked. 

Does anyone know of an actual reason, for this and how to fix it? You would think that Spotify would try and fix this bug. But posts Ive seen go back years. RIP

[JordanCW]

This same issue started for me a couple days ago can't fix it either. I read try resetting the proxy from HTTP back to auto detect restarting spotify in between... hasn't worked for me though