F5F Stay Refreshed Power Users Networks Reports show no connection, yet 100mbps functions without problems.

Reports show no connection, yet 100mbps functions without problems.

Reports show no connection, yet 100mbps functions without problems.

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LethalStats
Member
100
06-24-2022, 01:47 AM
#1
I've been using a Gigabit connection for more than a year. Recently I experienced some slowdowns and checked my speeds, finding only about 100mbps maximum. I tried bypassing the switch to check for hardware issues, but connecting straight to the PC didn't work. When I connected directly to the router, switching duplex to 100Mbps restored normal performance. After reconnecting the Ethernet cable back to the switch, my Server PC still showed the same slow speeds. (With 1.0Gbps duplex enabled, I get up to 100mbps max.) I don’t have another cable available since the router is over 25 feet away and I lack a longer one. If anyone has experience with this problem, any advice would be greatly appreciated. Attached are some screenshots that might help clarify the situation.
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LethalStats
06-24-2022, 01:47 AM #1

I've been using a Gigabit connection for more than a year. Recently I experienced some slowdowns and checked my speeds, finding only about 100mbps maximum. I tried bypassing the switch to check for hardware issues, but connecting straight to the PC didn't work. When I connected directly to the router, switching duplex to 100Mbps restored normal performance. After reconnecting the Ethernet cable back to the switch, my Server PC still showed the same slow speeds. (With 1.0Gbps duplex enabled, I get up to 100mbps max.) I don’t have another cable available since the router is over 25 feet away and I lack a longer one. If anyone has experience with this problem, any advice would be greatly appreciated. Attached are some screenshots that might help clarify the situation.

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leowolfdu13
Member
195
06-24-2022, 01:54 AM
#2
I believe the cable is faulty. Inspect for any visible harm. A Gigabit connection demands all four conductor pairs to be intact, whereas 10/100 only needs two pairs functioning properly.
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leowolfdu13
06-24-2022, 01:54 AM #2

I believe the cable is faulty. Inspect for any visible harm. A Gigabit connection demands all four conductor pairs to be intact, whereas 10/100 only needs two pairs functioning properly.

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Fritztech
Member
218
06-24-2022, 04:05 AM
#3
It seems like most of these cables are of poor quality, not just because of visible damage but also due to low-grade conductors.
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Fritztech
06-24-2022, 04:05 AM #3

It seems like most of these cables are of poor quality, not just because of visible damage but also due to low-grade conductors.

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BlaackZero
Junior Member
15
06-25-2022, 12:45 PM
#4
Network wires need a certain bend radius for smooth turns. It's more noticeable at faster rates, but a twist in a high-speed link should be prevented.
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BlaackZero
06-25-2022, 12:45 PM #4

Network wires need a certain bend radius for smooth turns. It's more noticeable at faster rates, but a twist in a high-speed link should be prevented.

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mike0904
Junior Member
42
07-05-2022, 02:10 AM
#5
Follow up: I still have yet to test a new cable, the few stores I went too didn't have the flat cables I use, so I waiting on shipment of a new cable. After having looked over the cable more thoroughly, the cable goes into someone else's room (privacy and whatnot), I found that the cable did have what looked like puncture marks, I can only assume that they had a dog over and it chewed on the cable over the weekend. I didn't think anything of it because I was gone over the weekend but seeing as how many of you all agree that its a damaged cable, I have no reason to doubt that a new cable will fix all of my issues. I will post an update once I do get the new cable up and running. Thanks again to everyone who helped. NOTE To those interested I have found that your PC will still use a 1.0 gigabit Full duplex even if the connection is 100 megabit Full duplex if you connect through a switch. This highlighted by Needfuldoer However if you were to connect that same connection at the same 1.0gbps directly into the PC you will result in a no connection error, hence why switching to 100mbps will fix that issue.
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mike0904
07-05-2022, 02:10 AM #5

Follow up: I still have yet to test a new cable, the few stores I went too didn't have the flat cables I use, so I waiting on shipment of a new cable. After having looked over the cable more thoroughly, the cable goes into someone else's room (privacy and whatnot), I found that the cable did have what looked like puncture marks, I can only assume that they had a dog over and it chewed on the cable over the weekend. I didn't think anything of it because I was gone over the weekend but seeing as how many of you all agree that its a damaged cable, I have no reason to doubt that a new cable will fix all of my issues. I will post an update once I do get the new cable up and running. Thanks again to everyone who helped. NOTE To those interested I have found that your PC will still use a 1.0 gigabit Full duplex even if the connection is 100 megabit Full duplex if you connect through a switch. This highlighted by Needfuldoer However if you were to connect that same connection at the same 1.0gbps directly into the PC you will result in a no connection error, hence why switching to 100mbps will fix that issue.

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Schwyz
Junior Member
11
07-05-2022, 03:17 AM
#6
We successfully removed the cable behind all obstacles and discovered significant wear on some strands. With a bit of crimping on fresh connectors, I could repurpose this cable into two new ones, though I’ll handle that later. Thanks again for your assistance. TIL Ethernet can function with just two pairs of wires.
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Schwyz
07-05-2022, 03:17 AM #6

We successfully removed the cable behind all obstacles and discovered significant wear on some strands. With a bit of crimping on fresh connectors, I could repurpose this cable into two new ones, though I’ll handle that later. Thanks again for your assistance. TIL Ethernet can function with just two pairs of wires.

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rafagp08
Junior Member
20
07-21-2022, 10:32 AM
#7
Choose a high-quality cable instead of a flat one.
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rafagp08
07-21-2022, 10:32 AM #7

Choose a high-quality cable instead of a flat one.

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ben_dragon
Senior Member
259
07-21-2022, 12:13 PM
#8
There's honestly nothing wrong with flat cables. I've had more issues with normal round cables personally. Although the use-case of a flat cable where it might get trodden on or trapped in a door is dumb, they shouldn't advertise them for that. That said, I have a friend who had a round cable that got trodden on all the time and broke, replaced it with a flat cable which made it more manageable which AFAIK has avoided it getting trodden on. So there is "some" merit.
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ben_dragon
07-21-2022, 12:13 PM #8

There's honestly nothing wrong with flat cables. I've had more issues with normal round cables personally. Although the use-case of a flat cable where it might get trodden on or trapped in a door is dumb, they shouldn't advertise them for that. That said, I have a friend who had a round cable that got trodden on all the time and broke, replaced it with a flat cable which made it more manageable which AFAIK has avoided it getting trodden on. So there is "some" merit.

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joshwars
Junior Member
44
07-21-2022, 09:02 PM
#9
You're suggesting alternatives to standard cables, focusing on aesthetics and safety. It seems you're considering options that are visually appealing and less prone to damage. The idea is to avoid flat cables for practical reasons like tripping hazards and to maintain a higher quality connection.
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joshwars
07-21-2022, 09:02 PM #9

You're suggesting alternatives to standard cables, focusing on aesthetics and safety. It seems you're considering options that are visually appealing and less prone to damage. The idea is to avoid flat cables for practical reasons like tripping hazards and to maintain a higher quality connection.