Hi all. 

New to this type of thing I have the TP link ac1750 router in my office at the end of the garden that it is connected to my Sky Q ADSL modem by a Ethernet cable.  It is powered up by a separate power source which is from a different fuse board to the sky Modem.  I cannot get any internet connection out of the TP LINK router it constantly has a red light on.....

when I connect the Ethernet cable directly in to my laptop it works perfectly and when I run a speed test it shows up as a good fast signal. 

Any advise welcom it is it is driving me potty