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Solved
Wired ethernet speed slow
I am having the same problem. It seems to have begun 2 weeks ago in my case when Windows11upgraded to 22H2. It is only affected wired ports. WiFi unaffected. It is affecting every PC upgraded to 22H...
Had a network tech friend bring his Asus GT AX-11000 to test in my home and we experienced the ethernet throttling the same even with the Asus. He then turned off IPV6 on my NICs properties, rebooted, retested and problem is resolved. I now have full ~920Mbps download on a 1GbE NIC as expected from using either the Asus or the RBK852 simply using IPV4. Circumvention is to turn of IPV6 in NIC properties.
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Had a network tech friend bring his Asus GT AX-11000 to test in my home and we experienced the ethernet throttling the same even with the Asus. He then turned off IPV6 on my NICs properties, rebooted, retested and problem is resolved. I now have full ~920Mbps download on a 1GbE NIC as expected from using either the Asus or the RBK852 simply using IPV4. Circumvention is to turn of IPV6 in NIC properties.
Interesting. Something with MS and IPv6 mis-handling?
- This issue has been fixed by Microsoft today in —KB5022913 (OS Build 22621.1344) for Windows 22H2.
https://support.microsoft.com/en-us/topic/windows-11-version-22h2-update-history-ec4229c3-9c5f-4e75-9d6d-9025ab70fcce Updated comments in Microsoft Tech Community incorrect: Network issues still not resolved in this build.