Slow speeds on new AT&T Fiber
I had AT&T Fiber installed last week and have been having slow speeds. I'm using a Linksys EA9300 in DMZ Plus mode behind the RG (Pace 5268AC) and turned off IPV6 on the Gateway. On a 5GHZ network from the Linksys, I am only getting around 75-80 Mbps. If I connect to the AT&T Wifi on 5GHZ, I get 300-375 Mbps. Why is the Linksys being slowed down? I did get 400 Mbps on the Linksys right after the Fiber was installed, but then it went down to the 75 Mbps after a few minutes. Are there any other settings that I may need to change? I've already Reset both the RG and Linksys to Factory Default and set them back up again. Thanks.