Laptop not detecting network when in 40 MHz/300M bandwidth

RajarshiB

Reputable
Nov 19, 2015
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I have a Tenda FH 456 router and an Asus X551CA SX014h laptop.

when the channel bandwidth of the router is set to 20MHz/150M the laptop detects the network.
but it doesnt when it is set to 40MHz/300M.

Can someone tell me why this happens and how to solve this issue

thanks in advanced