Mavis wrote I just downgraded the firmware (tried both 2013 and 2014 versions ), the speed did improve a little but not too much. The link speed between the router and PC is 1000Mbps after downgrade?...

I bought a 1Gbps switch and it works like a charm. Computers with 100Mbps network cards still get 6-22Mbps. TP-Link should definitely look into this :(

@Mavis - I already did that . See my post above. It's 99.9% a router firmware problem :( I just need to know if it will get "bricked" (ununsable) if I downgrade the firmware. Update: I just...

Model : TL-WR1043ND Hardware Version : V2 Firmware Version : Firmware Version: 3.19.32 Build 150717 Rel.53114n ISP : RDS Romania They used to work together untill a few days ago when I noticed that :...