Region : UnitedKingdom

Model : TL-WR841N

Hardware Version : V8

Firmware Version : 3.15.9

ISP : British Telecom (BT)

First post so greetings to all from Northern Ireland.

I currently have BT Infinifty (FTTC) broadband using a separate Openreach Modem and BT Home Hub 3 wireless router (Connected to each other by WAN) The wireless part of the router has an issue so I've replaced it with a WR841N V8 which has been updated to the latest available firmware 3.15.9.

The BT HH3 gave me consistent download speeds of 26-29Mbps wired & 24Mbps wireless. The TP-Link is giving me a consistent 9.5Mbps (Never over 10) wired & wireless. I've went back to the HH3 a few times (In case the ISP had throttled my line) but its still almost 30Mbps each time.

My desktop PC has two LAN ports, one on the Motherboard and a PCI adapter board port. Both produce the same download speed. Checking their set up both are set to 'Auto detect' and report a connection speed of 100Mbps. I've tried changing them to 100Mbps full Duplex (From Auto detect) but that doesn't help.

WAN connection type is set at PPPoE (I've done this more than once using auto detect and manually selected)

I'm stumped, hopefully someone will be able to help?

Regards.