Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

TP-LINK WI-FI ROUTER DISCONNECTING FREQUENTLY FROM WAN PORT:
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TL-WR840N model router disconnecting from WAN port very frequently when I connect my phone via Wi-Fi!!!!!! But when I am using Tenda brand its working very well under same ISP!!!!!

Here I given some information.
WAN is getting IP from ISP DHCP server.(Mikrotik hotspot)
WLAN is configured as AES-PSK
Log provided from ISP: host removed, limiting addresses per mac


Normally when I using Ethernet port its working well, it did not disconnect WAN port from ISP. But when I tried to connect my phone via Wi-Fi, the router disconnect from WAN(ISP).

My question is why it disconnect frequently where I can use Tenda without disconnection?

Please help me in this regard. Customers returning all TP link router which they bought from my shop. Now they are buying Tenda instead of TP-Link.