PC SupportCan ethernet cables 'downgrade' their cat level?
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PC SupportCan ethernet cables 'downgrade' their cat level?Posted:

Dashii
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I have a CAT 8 ethernet cable which was giving me speeds of about 200mb/s. Recently it's started limiting me down to 95.

Other things in the house are still fine, another computer with ethernet gets 200, my phone on wifi next to the router gets 200.

My computer isn't the issue as another ethernet cable puts me back to 200. Has my cable somehow downgraded itself to cat 5 (which seems to have a limit of 100) by either being damaged somehow or any other means?
#2. Posted:
Tele
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The port could be limited on the router/switch end or the client's end. I had a cheap switch at one point and some ports give 1Gbps and some give 100Mbps, but you should be able to see what the client is capable receiving (at least on windows) by checking the adapter properties.
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r00t
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Bad cable.

Devices connected by Ethernet negotiate the link's speed. Yours are finding that both devices support gigabit, but the link isn't good enough, so they drop to 100.

en.wikipedia.org/wiki/Autonegotiation
#4. Posted:
kim
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Bad cable.

Devices connected by Ethernet negotiate the link's speed. Yours are finding that both devices support gigabit, but the link isn't good enough, so they drop to 100.

en.wikipedia.org/wiki/Autonegotiation
#5. Posted:
FKX
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Simply No,
Factors:

Bad ethernet port
Incorrect or conflicting Ethernet Driver(s)
Limited speed ethernet port (100mb oppose to 1gb or 25gb ect)
Bad cable - twisted to much, cheap, or age (unlikely on its own)
Low tier ethernet to begin with
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