This topic

Losing network connection on desktop computer

mar53 — Wed, 23 Apr 2025 20:14:10 GMT

Since getting a new hub for fibre optic my network connection keeps going off on my desktop computer, anybody have any idea what's going on ?

Re: Losing network connection on desktop computer

imjolly — Wed, 23 Apr 2025 21:07:18 GMT

By fibre connection is that FTTC or FTTP? Is pc connected wireless or ethernet?

Re: Losing network connection on desktop computer

mar53 — Wed, 23 Apr 2025 22:30:24 GMT

It's ethernet connection

Re: Losing network connection on desktop computer

imjolly — Thu, 24 Apr 2025 07:57:22 GMT

fibre connection?

Re: Losing network connection on desktop computer

mar53 — Thu, 24 Apr 2025 08:31:58 GMT

Yes that's when problem started when it was changed over to fibre

Re: Losing network connection on desktop computer

chrisjp — Thu, 24 Apr 2025 11:30:38 GMT

But you haven't said whether your fibre is to the cabinet (FTTC) or to the premises (FTTP). BT confusingly refer to both as "fibre".
Also, when you say your ethernet connected desktop computer loses its network connection (to broadband or to your home network?) does that imply that other devices you have maintain their connection?

Re: Losing network connection on desktop computer

mar53 — Thu, 24 Apr 2025 11:37:15 GMT

The fibre connection is wired in through a hole in the wall to a small white box, I don't know tge technical names sorry, all other devices work on WiFi and not connected to the bt line

Re: Losing network connection on desktop computer

imjolly — Thu, 24 Apr 2025 11:57:43 GMT

from your vage description do you have something like this

if so are the lights green as shown above?

have you tried using a different ethernet cable from router to pc?

Re: Losing network connection on desktop computer

mar53 — Thu, 24 Apr 2025 12:14:22 GMT

Yes that's exactly what it looks like except the middle cable is grey and I think that would be the ethernet cable, I haven't tried another cable, the one I have was connected by bt engineer 3 months ago

Re: Losing network connection on desktop computer

iniltous — Thu, 24 Apr 2025 12:51:07 GMT

The cable from the ONT goes to the router , your PC isn’t connected to the ONT but a router port so if it’s only your desktop PC that has an issue the ONT and its cable to the router must be OK , an easy first step in locating the issue is a new cable from the router to the PC , if you got a new router because of the ‘full fibre’ upgrade that installed the ONT (the white box ) change the Ethernet cable to the PC or swap it into a different Ethernet socket on the router , and give it a while to see if this fixes the issue , another easy check is that the cables are all seated securely

Re: Losing network connection on desktop computer

mar53 — Thu, 24 Apr 2025 12:57:45 GMT

I've tried a different socket on router, I will buy another ethernet cable to see if this is the issue, thanks.

Re: Losing network connection on desktop computer

mar53 — Sat, 26 Apr 2025 12:55:31 GMT

I've just tried a new ethernet cable, tried different sockets and still no network

Re: Losing network connection on desktop computer

iniltous — Sat, 26 Apr 2025 13:19:38 GMT

You got anything else that can connect with Ethernet, game consoles, smart tv , different , powerline type adapters, laptop/pc etc ….if you can connect other devices to the router with WiFi, but none of the Ethernet ports on the router work with your desktop, then either the router is faulty, ( in that it’s Ethernet connectivity is not working ) although its other functions are apparently OK , or your desktop is faulty ( TBH it’s much more likely to be the desktop, either hardware or configuration issues ) you really need to establish which it is .

If you haven’t already done so , reset the router to factory settings , but you really need another Ethernet device to try to prove to the router or your desktop .

You could try setting up a PPPoE session on your desktop, this entails you connecting your desktop directly to the ONT with an Ethernet cable , therefore eliminating the router from the setup, if this works you basically have proved the router to be at fault, but apart from the temporary physical relocation of the desktop to be near the ONT , you also need to be able to configure the desktop to do this , probably easier to use a different Ethernet device

Re: Losing network connection on desktop computer

WSH — Sat, 26 Apr 2025 13:31:55 GMT

When you say 'no network', do you mean no connection to the internet or no connection to the rest of your network?

Re: Losing network connection on desktop computer

mar53 — Sat, 26 Apr 2025 15:30:55 GMT

After rebooting pc I now have internet connection, it was obviously a faulty ethernet cable which the bt engineer installed when transferring over to fibre. Thank you very much.