@Solla-topee I have no options in the extender as per that thread .Iam using RE305 extender and have no options to change the wifi Channel for both 2.4ghz and 5 ghz. I have attached my settings page....

Hello guys .I am also using RE305 extender . Im facing this issue now .Whether the channel number for 5ghz can be changed by the executives ? My channel number now is 149 .