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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.
These cables have all been verified with Netgear support. Netgear CM2000 modem ships with 10GbE CAT6A STP yellow cable. Testing is done ONLY with NIC attached. No other devices active. Very aware of Killer Performance Suite and this is deinstalled on all PC's with Killer NIC's. Have tried different server providers through Ookla, Fast,com, M-lab, Xfinity speed tests. All same results.
After reset, after new modem, results are the same. NIC ports are throttled.
meant after new router and satellite....not modem