Fedora 28: Offline behind Proxy

[chilischaf]

Hi,

I've updated my spotify client on Fedora 28 and now I've got connection issues. I'm behind a proxy and usually it works fine after entering the proxy.
But after the update I got 'No internet conection detected(...)' .

I tried to set it on 'Auto Detect' but it didn't help.
I checked my own network, but I didn't change a thing here.