Hi,
my tp-link 4300 is connected over a wlan-bridge to another lan and from that to the internet.
I'm afraid, that autonegotiation between the 4300 and the connected netgear wg102 is not working correctly.
The Wan-port of the 4300 is 1000Mb/s and the lan-port of the wg102 is 100Mb/s.
I have only data-rates of around 1MB/s, so i suspect, that the speed is handled down to 10Mb/s.
I tried to set the speed on the 4300 to fixed 100Mb/s with ethtool without success (ethtool -s eth0 speed 100).
The speed stays at 1000Mb/s.

Linux OpenWrt 3.10.32 #1 Thu Mar 6 04:04:35 MST 2014 mips GNU/Linux

Is it not possible to set a fixed speed?