Keeps disconnecting

Keeps disconnecting
Keeps disconnecting
2014-06-11 03:25:08
Region : Others

Model : TL-WA850RE

Hardware Version : V1

Firmware Version :


Region : Saudi Arabia

Model : TL-WA850RE

Hardware Version : V1

Firmware Version : 1.24

Hello everybody
I've purchased TL-WA850RE for three days now.
Despite doing settings correctly, but it does disconnect the internet for a few seconds and then re-connect again every 15 min.
I have updated the system and the problem is still going on my desktop, 2 laptops and 3 Samsung devices that I own.
Please provide me with the proper solution.

Here some info. from the extender

DHCP Server: Auto(Off)

Channel: 11

Type: Dynamic IP

Signal Received From Main Router/AP: 100%

Wireless Rate To Main Router/AP: 142.6Mbps

Firmware Version: 3.14.8 Build 140310 Rel.54716n

Hardware Version: WA850RE v1.2 00000000

Best regards.