I have a router technicolor DGA223. The router works at 1Gbit/s capacity, and other computers connecting in a wired cable to the router have 1Gbit/s speed.
Using the same wired cable and router port to my personal computer forces the speed link to be 100Mps. Disabling energy efficiency, as well as enabling Legacy switch compatibility does not works.
I have to most updated driver version (188.8.131.52).
What can be the problem? Is there a way to debug this problem? (i.e, an event manager\log files?)