Bought XE75 in November 2023 and it has worked great - until now.

Last week the LED started to turn solid red all of a sudden.

We contacted the ISP but the were no problems there.

We changed the cable but that didnt change anything.

I google it and found a post saying something about problems with port 1.

I switched the cable to port 2 - and then there are no problems.

After a while I switced it back to port 1.

And it works for 1-2-5-6 hours.. and then solid red LED again.

Switch to port 2 and it works again.

Have switched back and forth a number of times - every time when in port 1 it ends with solid red LED. Sometimes immediately, sometimes after 6 hours.

I can read online that many have this problem. Especially with V1.

I have V1. Firmware 1.4.3.

What should I do?
It is annoying x 1000 to be without my internet if seller needs 2 weeks (at least) to check it