Bluetooth interferes with wifi connection when a SIM card is connected.
Wired into router ~90 Mbit/s up | ~90 Mbit/s down | ping <1 ms
speed over wifi ~60 Mbit/s up | ~50 Mbit/s down | ping ~15 ms
speed over wifi with bluetooth running ~3 Mbit/s up | ~7 Mbit/s down | ping ~50 ms
This slowdown does not occur unless a SIM-card is connected.
What to do?
In these quarantine times I have spent more time at home making me realize how awfully slow my internet speed was over wifi. Has anyone else experienced something similar? I assume it’s hardware related, but lacking tools I haven’t disassembled and cleaned the module. What do?