Hi, @Marvin_S, thanks for answering this message. Before I had the chance to try any troubleshooting, the issue just solved itself, somehow. I don't know what happened, but whatever it was, it seems...

I'm having a strange issue with my TP-Link Archer C6 router. Telegram always worked fine since I bought the router. Out of nowhere, it simply won't connect anymore when I'm connected to it. Details...