Question Internet spikes every few minutes but upload is fine

[squillion64]

At&t recently upgraded me to free fiber internet. Ever since I have random internet spikes every few minutes. They last around 20 seconds. The strange thing is my upload is fine, because everyone can hear me in discord or zoom still talking. Im connected to my gateway with an ethernet cable.

 

[chaoyang]

I'm experiencing a similar issue too, but problem is some what 'temporarily relieved' once I connected to a good VPN.