I am really hoping someone here might be able to help me. I am not really sure which information is relevant so want to put it all out there.
A few months ago, my PC with a wired ethernet connection would lose internet connection every night around 3 am and then every 40 minutes or so after until morning. This happened for a few weeks until suddenly stopped and didn't have another issue until these last few days. It previously worked without issues for years.
My daughter's desktop PC was returned last weekend after a repair/rebuild. She was not able to pick up the wifi very well with this new PC. I bought an external wifi adapter which didn't help. Her previous PC with built-in Wifi had a strong enough connection for gaming and the position hadn't moved. I decided to move her onto a wired connection, bought a "high speed" 20m ethernet cable, and tested it - all seemed to work okay. Secured the wire up the stairs and the internet wouldn't work. There was no damage to the wire. Read the reviews and saw that others had had similar issues with this wire and so bought another.
I had also bought myself and my son 2x new 10m ethernet cables and installed them, but both did not work. I took them out and reinstalled my ethernet cable and my internet has dropped consistently since.
I reset the router (1-minute pinhole at the back) and when it came back on all the wifi in the house had been affected with all devices losing internet connection.
The new cables arrived today, and so installed the 10m ethernet cable to see if it might fix the issue but it did not.
I spoke to Virgin who said that it is likely interference from the ethernet cable as it was from a 3rd party (Amazon) and that they were going to send me a 3m ethernet cable to test and after a few days to let them know if I am still experiencing the same problems.
We did a speed test which was DOWNLOAD Mbps 86.45 UPLOAD Mbps 0.10. I just did one again and it is DOWNLOAD Mbps 93.9 UPLOAD Mbp 2.79.
I asked if it was possible to test the wifi with them on the phone by taking out the ethernet cable and so took out the ethernet cable and we reset (pinhole at the back). After 5 minutes the internet came back on and would fluctuate between weak and strong. The advisor from Virgin said that the issue was caused by this ethernet cable, I asked if I could buy the cables directly from Virgin. He said no I needed to buy 3rd party ethernet cables but to make sure that they were compatible with Virgin.
This is the latest ethernet that I bought and have no idea if it is compatible. https://www.amazon.co.uk/dp/B0B8M67CY9?psc=1&ref=ppx_yo2ov_dt_b_product_details
I turned off my router for 10 seconds and then back on which seemed to stablise the wifi connections, laptops/phones/tv. After 40 minutes I tried to plug back in the ethernet cable - so far this has not affected the wifi connections (3 hours) but it has lost connection on my PC every 2 - 10 minutes. Sometimes taking seconds to come back on, other times over 5 minutes.
I have ordered a USB Ethernet connector for my pc in case the problem is the ethernet socket on my desktop, but I am also worried that it may actually be the connections for the ethernet in the router with having had issues with 5 separate ethernet cables and changing the socket which was used.