I think there is something wrong with the router. If you ping to a WiF connected PC sometimes it's ok and sometimes is unreachable. But if you conect a net wire to que same PC, without doing anything...

Hi, I bought a TL-WR940N router ans it's work ok. But I have 4 pc at home, two wired and two wifi. The wired wired pc are into the net but the wifi pc are unreachables, although all af them can...