Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

Hi,
Just bought a wireless router TL-WR841N, i found the wireless is unstable.
i was browsing facebook with my phone and my phone keep pop up with the message "connected to XXX-wifi" which this massage is only appear when my device is connected to wifi, Is my wireless is not performing in stable condition?
I checked the solution at TP-Link website, and done of the following solution:
1. Change channel width to 20MHz
2. Change Channel
3. Use recommended wireless security type
but it is still doesn't works!

Also, i found no drop down list in the region selection in the wireless settings