You are right, my bad, its WPA/WPA2 AES encryption. Anyway, any ideas on what might be happening? Last night it worked for 30 minutes, with 3 clients in wifi using it the whole time, when it crashed...

Region : Argentina Model : TL-WR741ND Hardware Version : V4 Firmware Version : 3.16.6 Build 130524 Rel.58577n ISP : Speedy / Telefonica My problem is that wifi stops working randomly, after some time...