Internet has random micro disconnections and high ping

Hi, My internet disconnects me from my game or voice chat for a split second then connects back to the internet almost instantly. The internet disconnects me from my competition matches and reduces my score for simply disconnecting, the ping stays consistently around 140 - 214ms and delays my shots or over extends me, when in discord it disconnects me without me knowing so I'm sitting there talking to myself, it kicks me out of ps4 coop games with friends while on missions I can't rejoin, it kicks me from ps4 chat and my microphone just blinks like its trying to connect, and my NAT type is always 3 on PS4. I have had 3 technicians come out and replace some stuff but they all say everything is good. Through reading information online, my best bet looks like it would be that I need a new modem or something between my house and the ISP tap is messed up and not actually my house but I'm not sure. I have consistently gotten the same t3 time out codes and synchronization error in my router event logs but for some reason under the date or time column it always has the date as 1970 and I have no idea on how to change it. The correctables and uncorrectables are 0 atm but I think its just because I reset the modem, the correctables/ uncorrectables were about 700/1500 before reset. Every channel was 300-800 more uncorrectables than correctables. These problems never seem to happen when on the 2.4ghz wifi, only on the devices I run fast speeds. My pc is on 5ghz wifi and My PS4 is on a LAN cable as its a classic ps4 limited to around 30mbps wifi speeds. I have a Netgear C6250 modem and a Netgear R6350 Router. I have attached a picture of my upstream and downstream specs as well as my event log. Thank you for anything.