Insta360 One X WIreless issues

Hello. I have a problem with Insta360 One X. I noticed the problem during the coronavirus pandemic and at the same time the warranty period of my device has expired ... I suspect that the problem may have arisen due to overheating of the device, but it is worth consulting my problem with wiser/more experienced ppl than me :) I have the latest firmware, I tried to connect to it with various phones supporting the 5g wifi network and unfortunately the problem persists. The connection at the camera itself works, but it is enough to take a step or move the phone away from a distance of more than 10 centimeters and the connection weakens or disappears and the preview freezes. I tried to work around this problem using the huawei wifi extender, unfortunately without any results.

I bought the device in the Apple online store, unfortunately, despite European consumer rights, Apple does not take responsibility for the gear they sell that is not their direct product.

Does any of the forum members know how to fix it?