Struggling to work out what the issue is here - cable, networking card or EE SH router?

[Disco_P]

So I plugged in a cheap long cable and that seems fine/better

Hurts to have to be considering replacing the cable (it's expensive for me).

I would test this longer term, I know it sucks having a cable trailed about the place but if it works then the wall cable is 100% the cause and the sparky who did the job in the first place should be held accountable.

 

[RT123]

Sadly not the cable

I’ve had the other cable in the PC, same problem happens

 

[RT123]

So my PC is definitely still randomly disconnecting itself (showing a connection but not actually working when it happens)

 

[RT123]

Been using my M1 Mac today and that's fine

Looks like the company I bought the PC from are going to be terrible in regards to getting the money back (or what I can get back). I can only hope it's not too long.

 

[the-evaluator]

Did you try a different network card? Even a USB adapter is worth a punt.

 

[RT123]

Did you try a different network card? Even a USB adapter is worth a punt.

Yes - I’ve tried two different external NICs

 

[dlockers]

Been using my M1 Mac today and that's fine

Looks like the company I bought the PC from are going to be terrible in regards to getting the money back (or what I can get back). I can only hope it's not too long.

Is it under warranty? Presumably it'll be a mobo swap?

 

[RT123]

Is it under warranty? Presumably it'll be a mobo swap?

I’m hoping it just needs a different board now (but this one’s already been replaced like for like, so I’m just a bit stumped as to whether that can be the issue still)

Company is also proving very difficult to get to do things.

 

[dlockers]

I’m hoping it just needs a different board now (but this one’s already been replaced like for like, so I’m just a bit stumped as to whether that can be the issue still)

Company is also proving very difficult to get to do things.

In all fairness it screams very odd. There is no reason why it shouldn't work

 

[OCZxFTW]

If Wireshark is showing that the Ethernet adapter is dropping out then I’d say NIC issue but strange how your USB NICs are doing the same. Is the bios up to date?

 

[RT123]

BIOS is on the most up-to-date version

 

[OCZxFTW]

Hard to say much more really especially if the same cable run works fine with other devices. With the board being swapped, I seriously wonder if it could be a issue between chipset and ryzen soc as wireshark is detecting the NIC dropping out not cable issue with that error message.
But would expect the system to have more than just Ethernet issues if that was the case so just a theory tbh..

 

[RT123]

Hard to say much more really especially if the same cable run works fine with other devices. With the board being swapped, I seriously wonder if it could be a issue between chipset and ryzen soc as wireshark is detecting the NIC dropping out not cable issue with that error message.
But would expect the system to have more than just Ethernet issues if that was the case so just a theory tbh..

Hmm. It certainly is difficult, although seems logical that it might have something to do with AMD (my old PC had an Intel processor and also worked fine)

 

[RT123]

Company are going to replace the motherboard with a Gigabyte one. Fingers crossed.