Netgear C6300 wifi not working with samsung galaxy s7 edge and regular s7

I’ve had constant problems since I got my "1st " Samsung Galaxy S 7 Edge.  I spend almost 3 hours the 1st night trying to transfer everything from my old phone to the new one.   It would show and recognize my wi-fi but “no connectivity “ or “no internet connection” would pop up.  A Verizon rep had me try several things.  The only way we could do anything was to take it off wi-fi and only use mobile data.  After a day of several hours on the phone with Verizon, Time Warner and rebooting my router several times and a trip to the Verizon store.  I had Verizon order me another phone.  “2nd” phone exact same problems. Again, I called Verizon, Time Warner and rebooted my router.  After several hours on the phone and another trip to Verizon, no one seemed to know what else to do.  Verizon suggested I call Samsung support.  Samsung wanted me to do all the same things that Verizon already had me do on the 1st phone and again on the 2nd one.  At that point they said I could send the phone off to Samsung for “repair” which would take 10-14 days to receive it back.  I felt I should Not have to send a new $792 phone off to repair.  I called Verizon back and told them to order me another phone.  I have to say, Verizon has been great.  Every rep and tech has been putting notes on my account on all my calls and all the things that they had me do to try fixing the problem.  Now, on my “3rd” phone, Yes, same problems!  The same day I received it, I called Verizon and they said customer service couldn’t order me my “4th” phone but their tech department could or I could go into the Verizon store to turn in that phone and get a new one.  The Verizon rep was putting notes on my account to not charge me a restocking fee or any other extra charges.  I went to the Verizon store intending on turning in my 3rd phone and getting a 4th one.  Then my son found this site and these posts.  I sat in front of the store reading these posts and found the post about a work around.  Went home to try it.  It worked, for a day.  Back to the same wi-fi problems.  Keeps saying I don’t have an internet connection, can’t download apps, can’t sign in on my yahoo email.  I tried to do the work a around again on my Netgear on line, now it doesn’t work at all.  The only way to do anything on my phone when I’m home is to use my mobile data and use my data up.  Obviously sending my phone to Samsung for repair wouldn’t work because they would say it’s fine and just send it back to me and I Still wouldn’t be able to use the wi-fi at home.  I did check and my Netgear C6300 has the latest firmware.   Netgear, Samsung come on…….fix the problem, come up with an update ASAP!!!!!!!!