I have the same problem (I'm on: V4, Firmware Version=1.0.7). I read using a static IP may help, but how should I set it? Is there any cons setting it? This is what I have now: Or should I set it...

I connected my desktop via Ethernet and internet works, but when I use http://tplinkrepeater.net/ to configure the extender I see something like "are you trying to configure your extender?", but I...