Wait, why did you switch from Google Fiber to Cox coax Gigablast? Did you move? You need to get back on Google Fiber ASAP as I don't think anyone in their right mind would willingly switch from Google Fiber to Cox. Cox coax is having tons of problems with oversaturation and packetloss. Their upstream is congested with all the WFH traffic as well as kids being home - phones, gaming, streamers uploading constantly. You'll be seeing upwards of 20% packetloss until they split your node which would take months since Cox oversold pretty much everywhere and their network can't handle all this new upstream traffic. In other words, you won't be able to game and you'll drop a ton of frames when streaming.
File with the FCC and get back on Google Fiber if you can. https://consumercomplaints.fcc.gov/hc/en-us/articles/115002206106
