F5F Stay Refreshed Hardware Desktop Ethernet not recognising network

Ethernet not recognising network

Ethernet not recognising network

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PacmanAng
Junior Member
2
12-29-2021, 03:46 AM
#1
Hi all, I'm having a strange issue with my ethernet to my PC recently. I have an ethernet socket downstairs by the router and its connected to another socket upstairs by my PC, when my PC is connected this way it can't recognise the network. However when I connect the same cables to a laptop upstairs it detectes the network just fine, and also when I run a long cable to directly connect my PC to the router it detectes the network just fine. I can't work out why it is only a problemn when my PC connects through the sockets. Any help would be very appreciated and feel free to ask if any other information would be helpful. Ps I'm using windows 11 and have manually updated the ethernet driver already
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PacmanAng
12-29-2021, 03:46 AM #1

Hi all, I'm having a strange issue with my ethernet to my PC recently. I have an ethernet socket downstairs by the router and its connected to another socket upstairs by my PC, when my PC is connected this way it can't recognise the network. However when I connect the same cables to a laptop upstairs it detectes the network just fine, and also when I run a long cable to directly connect my PC to the router it detectes the network just fine. I can't work out why it is only a problemn when my PC connects through the sockets. Any help would be very appreciated and feel free to ask if any other information would be helpful. Ps I'm using windows 11 and have manually updated the ethernet driver already

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iLwRo
Member
130
12-29-2021, 06:27 AM
#2
You have a wall socket for a network cable (RJ-45) close to your router, which is wired inside the wall to another similar socket near your computer. When you connect through these sockets, your computer doesn’t work, but your laptop connects fine. There might be several reasons for this. First, check if your laptop can handle 1 Gbps while your laptop only supports 100 Mbps. Network cables use all eight wires in 1 Gbps networks; for slower speeds like 100 Mbps, only four wires are typically used. It’s possible your sockets aren’t using all eight wires. A solution is to manually set your computer’s Ethernet port to 100 Mbps. Another possibility is the wall cable isn’t rated for 1 Gbps—you’ll need CAT5e, CAT6 or better cables. Adjusting your computer’s Ethernet speed might also help. Also, inspect the Ethernet ports: if two wires touch inside a socket, it could cause issues. Be careful when separating them. Good luck!
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iLwRo
12-29-2021, 06:27 AM #2

You have a wall socket for a network cable (RJ-45) close to your router, which is wired inside the wall to another similar socket near your computer. When you connect through these sockets, your computer doesn’t work, but your laptop connects fine. There might be several reasons for this. First, check if your laptop can handle 1 Gbps while your laptop only supports 100 Mbps. Network cables use all eight wires in 1 Gbps networks; for slower speeds like 100 Mbps, only four wires are typically used. It’s possible your sockets aren’t using all eight wires. A solution is to manually set your computer’s Ethernet port to 100 Mbps. Another possibility is the wall cable isn’t rated for 1 Gbps—you’ll need CAT5e, CAT6 or better cables. Adjusting your computer’s Ethernet speed might also help. Also, inspect the Ethernet ports: if two wires touch inside a socket, it could cause issues. Be careful when separating them. Good luck!

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Funtime_Sven
Junior Member
4
01-01-2022, 06:54 PM
#3
You were perfectly correct about the laptop's limited speed. After checking all the connections, it seems one cable had a faulty link and replacing it resolved everything. It's fascinating how 100Mbps only needs half the cables to function properly. Thanks so much for your assistance—it really helped!
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Funtime_Sven
01-01-2022, 06:54 PM #3

You were perfectly correct about the laptop's limited speed. After checking all the connections, it seems one cable had a faulty link and replacing it resolved everything. It's fascinating how 100Mbps only needs half the cables to function properly. Thanks so much for your assistance—it really helped!