Random Higher Ping every 4/5 games

My ping normally stays between 10-20. I have a 1 gig fiber connection to my house just for gaming. Recently, I have been having an issue every 4/5 games my ping will instead go between 250-500. If I restart my client it fixes it most of the time, 12/13 so far. The thirteenth time just happened and restarting the client didn't work. I restarted my PC and that didn't even fix it. Anyone know how to fix this or what the problem is? So far I have tried the below. 1. Restarting the client 2. Restarting my machine 3. Flush the DNS cache 4. Make sure that all device drivers are updated 5. Make sure OS is updated 6. Lowering graphics and other in game settings.
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