Thanks Matthew, the problem is that ISP is always the same. Also, I have the latest router and modem firmware. Meanwhile, I figure out a bit more for this misterious problem. The router works fine...

Region : Portugal Model : TL-MR3220 Hardware Version : V2 Firmware Version : 3.15.2 Build 130423 Rel.61823n ISP : Optimus Hi, I have the MR3220 working for 1 year and never had a problem (location...