HttpClientError, but only through wifi

[Peter]

Hi,

As the title suggests, I can't log in if I'm using wifi (every other app works perfectly using wifi except Legacy). This forces me into using up my prescious mobile data.
I tried playing the game through emulators as well (Genymotion's personal license and Memu) but I got the same error.
In case it would help with debugging, I could try capturing packets with wireshark to see what's going on, but I'm not proficient with it enough to be able to make deductions from the results. Not on my own, at least.
Any help would be appreciated!

[Peter]

Finally, I have figured out the solution! Enable airplane mode, then reconnect to the wifi. Works for both my phone and the emulated device.