R6700v3 firmware 1.0.4.118 caused connection problems

I installed the update R6700v3-V1.0.4.118_10.0.90 (also the newer R6700v3-V1.0.4.120_10.0.91) and immediately began having connection issues.  I rebooted my modem and router ad still problems.  All my family's devices on both WAN and LAN had this problem.  YouTube videos can have problems loading, email can have problems, some games like Steam games may not load at all.  Logging into Netgear required I reload the page 2-3 times.

I installed the previous version of firmware R6700v3-V1.0.4.106_10.0.80 and the problem went away.  One of my kids has a minecraft server and his friends have problems connecting with the old firmware so he reinstalled the latest version.  His friends no longer have a problem connecting but now we do on our netwok.

I sent Netgear support an email explaining that their newest firmware versions had bugs in them.  What I got was a trouble ticket and told tol contact Support.  Which I did.

Steps I've taken:

  1. Rebooted the modem and router 3-4 times

  2. Contacted tech support and was told I had to pay for support which I don't know why when my router worked great for everything except the Minecraft server before the recent updates.

  3. I reset the router to factory defaults then redid all the settings.  Tthe setup wizard had problems connecting to my account during setup.  It had to try multiple times.

  4.  I received an email from the support tech I spoke with and he suggested a variety of things but began with I should try power cycling my network devices and installing the latest firmware.  I already had to no avail.

Would you please fix the bug in the latest firmware?