I turned the power saving thing of and somehow it works now but still it works fine then changes on its own ****
Realtek PCIe GbE Family Controller limited to 100mbps
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Anonymous
the link speed of this network adaptor is limited to 100 mbps regardless of what i do; ive set the duplex to gbps speeds, im using the correct cable as ive tested it on different devices as well as via an USB adaptor that uses the Realtek USB GbE Family Controller, through which gbps speeds is achieved, i would rather not use this method currently as i require the USB port for peripherals and multiple connections from a hub that isnt externally powered just causes problems for my peripherals.
other things that have also been done, all relevant drivers are installed.
i cant figure out what the issue is
Windows for home | Windows 11 | Internet and connectivity
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Anonymous
2025-03-14T20:45:51+00:00 -
Anonymous
2024-08-23T20:37:47+00:00 Look for the Speed & Duplex option under advanced and set that to 1.0 Gbps Full Duplex and it should fix your issue. At least it did for me.
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Anonymous
2024-08-05T21:18:59+00:00 Er. In answer to your question, given I already mentioned that it runs at 1GBit before a reboot then it would appear so? Perhaps it might be an idea to read the bug reports before posting.
I have now Tried this with three separate Oem network adaptors: Realtek, intel, and one other. All give the same effects. Clearly there is a problem with the low level network stack drivers in windows 11.
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Solamillo Charity 20,260 Reputation points Independent Advisor2024-03-21T04:57:40+00:00 Hello there! I am Charity, I'm an Independent Advisor and a Microsoft user like you.
I'm glad to help you today!
I understand you need help in regards with your network adapter limited only to 100 mbps.
Have you double-check if your network adapter supports Gbps speeds? And in regards with that, may I know the type of Realtek PCIe GBe Family Controller you're using?
You can check that from:
- Open Device Manager > Expand Network adapters
- Double-click on Realtek PCIe GBe Family Controller
- Go to Details tab > Under property drop down, select "Inf section"
- Provide what is stated in the Value.
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Anonymous
2024-03-21T11:52:53+00:00 Sorry for poor wording, I was referring to the realtek PCIe GbE family controller in my last reply I have attempted disabling and reenabling, as well as reinstalling the necessary drivers but to no avail