As for recovery of OpenWRT on CPEs, you might run into trouble. See http://forum.tp-link.com/showthread.php?81684-How-to-use-firmware-recovery-function-of-Pharos-CPE for more information.

Yes, it has only one Ethernet port. But to connect a switch to it, you would have to use the Ethernet port at the PoE injector labeled LAN, not the PoE line.

kangaroo72 wrote My result?? PoE is dead for me. I'll destroy this crappy switch (TL-SG1008P) and will buy a normal Gigabit-switch. Just for my Phone I also have an external PSU. Please, don't...

RTouris wrote With regards to the actual data throughput you currently achieve I'd be reluctant that given the 17dB you could push more out of it...Perhaps in the 25dB range you could possibly get...

Yes, this is normal behavior. Rates need not to be constant over the time and if throughput doesn't drop, everything is o.k.

baldog wrote seems more hassle than its worth trying to get that to work unless you want to walk me through it!! Sure. Why not? You have one CPE in AP mode and the other one in Client mode, right?...