I have connected my wifi tenda extender to my main router for extension of wifi coverage. Now problem is that my wifi extender is successfully connected to main router and also I can access setting of main router through wifi extender. But internet does not work. Please help me out. Note that when I connect to my wifi extender, I can access settings of the main router but still no internet. So connection is successfull. I have checked all mac filtering and ip filtering of main router.