HELP! 360 Causes IP address to keep disappearing/reappearing!

Hi there.  First time here.  All was fine until my 360 product was about to expire.  When I installed a newer version, (21.1.0.18), the trouble began.  My internet connection drops out and comes back constantly.  It does this several times per minute continuously.  I have 3 computers.  One is wired, (ethernet cable)...and the other two are wireless.  All have Norton 360 and all have the same problem.  The wireless connection on my smartphone works fine.  My wireless game consoles work fine.  When I take my laptop away to a different WiFi connection, the problem remains.  This tells me that the problem must have to do with Norton 360.........but what?  This is very frustrating.  I sure hope that someone has a solution out there.  Thanks in advance!