AT&T Fiber connection slowing down every night

I gave up on them. I switched to Xfinity and problem solved.

I mean sure, if you have the ability to switch to another fiber network with symmetrical speeds then be my guest.

Not really a solution.

Unless I can figure this out soon I'm going to have to go back to Comcast. It's $25 more but at least it works. 

Unless I can figure this out soon I'm going to have to go back to Comcast. It's $25 more but at least it works. 

Same. I'm going to reach out to AT&T tomorrow, if they tell me that it's my ONT again, I'm switching to Spectrum.

I finally convinced them to send an outside line tech. Hopefully this is the issue. 

For anyone who finds this in the future.

Had a tech come out to tell me that all the light levels on the fiber were perfect as well as the equipment inside the home. They then proceeded to tell me that the specific switch for my town/area in the AT&T data center is overloaded and that there is nothing they can do to fix it. They told me that all the new subdivisions that are being built around me is straining the C.O. (whatever that means) and that it will take "an act of congress" for AT&T to either upgrade the physical hardware or add another switch in the center to alleviate the issue. They also advised me to wait another few weeks to see if the problem finally gets resolved (been waiting two months). They said all the techs and reps know about the issue in the area and that they had 20 tickets this week alone for the exact same issue and they could do nothing.

So basically, if you guys are living in an area where there are a lot of developments being built, this issue will never go away until the developments are done, and the datacenters are brought up to scratch.

Cancelled my service today and Spectrum is installing their hardware tomorrow. Good luck guys.

This is insane. I can't believe I am going to have to go back to Comcast of all places to be able to get work done in the evening.

I literally just switched to spectrum because I started having this issue as well, I had 1 gig up/down, my game felt slow and I was getting killed instantly without the chance to shoot. Packet loss percentage on cod around 1-5%. Even when I got it to 0% I was still feeling it off. As soon as I did the switch I felt a big difference and I downgraded to cable 500 down 20 up. When att was good I really enjoyed it but sadly I had this issue

Ordered Comcast last night. So mad in going back. 

I'm about to switch to Spectrum too. I had a guy come out yesterday and play with my ONT and apparently pretend to fix something. I'm tired of having to repeat myself to customer service reps even though the first one told me there was a "network sync" issue, but no one seems to be able to fix it. I think they  really are throttling speeds because they've overloaded their own capacity.

AT&T only rolled out fiber in the first place because the government required it in order for the merger with Time Warner to get approved. After the deal ended, they laid off thousands of people, and now they're going back to their old shady ways.

I think they  really are throttling speeds

Disagree

because they've overloaded their own capacity.

Agree.  I do not believe that they're throttling (i.e. deliberately lowering the bandwidth below capacity), the traffic is just being limited by capacity at certain points in the network.  In some cases it's their peering connection, in some cases its their own network.