Hi guys, i just got the speed upgrade to 300Mbps recently and ran into some weird problems. Hopefully someone here can shed some light on this issue.

My house has a concealed cat 6 cable and i use this to connect between the BTU and router (D-link DIR882), with this setup my speed is capped at 100Mbps. However when i go direct from router to btu with another cable, and run connect a laptop via the concealed CAT 6 to the router i can get max speed of 300Mbps.

BTU >> Concealed Cat6 >> Router >> Laptop = 100Mbps
BTU >> Router >> Concealed Cat6 >> Laptop = 300Mbps

So basically we can conclude that there is nothing wrong with the concealed cable, but i don't quite understand what is causing the difference in speed.

All ports are gigabit port, hence the fullspeed in scenario 2.

Direct cable connection, cat6/cat5e

The cables and equipment i use in scenario 1 and 2 are the same