[SOLVED] Intel(R) 82579LM Gigabit connecting at only 100 Mb/s in Windows 10 64 bits

[Ricardo_MF]

Hi there!My PC have a Intel(R) 82579LM Gigabit that worked above 100 Mbps just fine with a previous modem. My ISP upgraded the modem and the 82579LM would work only at 100 Mbps. I tried using different Ethernet ports and other cables, but without any luck.I've found several posts on many forum with people having the same issue, but without any solution. Since I've found one, here it is:Open Device Manager (right-click the Start button)Expand "Network adapters"Double-click "Intel(R) 82579LM Gigabit Network Connection"In the "Power Management" tab,&nb

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