PS4 shuts down when connected to Wi-Fi

I moved recently to a brand new flat and it worked like a charm for the past 2 months when I connect it to the internet through Wi-Fi. Now it simply crashes within 10 minutes of connecting it to Wi-Fi. Ethernet remains functional though. The TV screen just goes all of a sudden blank and no light is visible on the actual console when the fault occurs. When I press the power button on the PS4 it beeps but nothing happens (no light also shows up). On the second press it boots into recovery mode and begins to analyze itself. Once it’s done it gives me a warning to turn off the console properly next time before unplugging the AC cord. I tried booting it into safe mode and running all possible options except the options which require the wipe of the hard drive. I reflashed the operating system but nothing helped. The console is a PS4 CUH-1216B model if it helps anybody. Thanks in advance!