I will preface this by saying anything to do with computer networking and hardware is like speaking a foreign language to me.
My daughter was complaining that our wi-fi was not working in her room, so I purchased a MSRM wi-fi range extender.
During setup, it told me that we needed to be on WPA, and that the channel should be 11.
I fumbled my way through logging into our Linksys router and changed the wi-fi channel from 9 to 11, and changed the personal security from WEP to WPA2.
Everything seems to be working correctly with the exception of apps on our Television- Netflix, Youtube, etc. all say they are not connected. The TV is plugged into our router.
I tried calling Comcast but they said they couldn't help me because my modem is not theirs (our modem is an Arris Surfboard SB6121.
Any suggestions on how I can fix this before my children kill me because they can't watch Netflix on the TV?