1. only 1-2 devices are connected alaways via wireless. 2.yes all the device has same packet loss I tried android ,ios both same thing happen. 3.no my router position is too good .It doesn't heat too...

I use TP link wr845N router....I bought it from amazon 4 months ago....From yesterday via wireless there is huge packet loss but no loss in LAN connection through router......what can I do now??.It...