I've had the Fiber 300 package for about 3 months now and consistently having slow load times. When I run speed tests, I am getting the speeds advertised with my package and the ping is right in line with a fast connection (5-25ms). But on all devices I have connected (Smart TV, iPhones, laptops) load times for all webpages and apps take 5-15 seconds and then the page loads instantly. This is constant regardless if there is 1 active connection or more devices paired with the Wifi.
I also have my main PC hardwired to the router and I still get this issue.
This is particularly frustrating as my fiance is a software engineer working from home, and her various apps/programs fail daily because of his issue, whereas her co-workers can instantly run testing with no errors/faults.
I suspect that the router/modem itself is the issue. If I restart/reboot the router, it will work as designed with fast load times for about 1-2 hours, and then reverts back to slowly loading pages. system updates have not helped the problem at all.
We are happy to help you with your internet connection speeds. Thank you for informing us of the troubleshooting steps you have already taken. Tell us, do you have any devices surrounding your router? Your modem environment can affect your speeds and may cause some traffic. Learn the best set up for your home network, and other tips within the article linked above.
We also have a forums support article that helps you to improve your speeds and provides things you need to know that can affect them. We hope this is helpful to you let us know if you need any further support.
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I ended up calling AT&T customer support about this and they are sending me a replacement gateway to see if that fixes the problem.
That's the first I've heard of the separate router option and I do happen to have one in my closet when I had Comcast a couple of months back. But AT&T doesn't allow you to use outside modem/routers with their service. If the replacement gateway doesn't work I'll give my router a shot.
The replacement gateway is being delivered today so I should have an update on this soon.