Find the points where connection slows down by testing speeds at different locations.
Find the points where connection slows down by testing speeds at different locations.
You're experiencing performance changes after 8:30 pm, especially on your ATT fiber connection. It seems the speed drops significantly, though upload remains strong. Using FTP and VPN helps stabilize the connection. To pinpoint when throttling starts, you might check your router or modem logs for error messages or bandwidth usage patterns around those times.
ATT might be aware of this situation. My experience suggests it usually occurs on shared networks. After 8:30 p.m., there’s typically heavy activity from others sending spam or similar, which can overwhelm the node. Once people leave their local ATT staff, it might be around 7:30 p.m. when they decide to reduce the network load. If spammers are the issue, I think it’s likely around that time. They wait an hour to confirm no one is monitoring then. If ATT is handling it, they might lower the traffic at 8:30 p.m. to cut costs on staffing.
If that were true, I'd expect a VPN wouldn't boost my speeds and my FTP performance wouldn't improve when using the bouncer.
Checked the seedbox info. It looks like it’s located outside the ATT network, which means not all users are being throttled. Probably just a few of you. It might not be throttling at all—your connection could be overbooked by ATT, while others are relaxing after dinner. If this is the case, it should ease up as they wind down. Does it speed up again after around 2 a.m.?
Netflix has a curious history with internet speeds. Last night it seemed fast.com could deliver over 200 Mb/s, while speedtest reported much lower speeds of 2 to 6 Mb/s. Usually fast.com hovers near 700 Mb/s when speedtest shows 980 Mb/s. I experimented with various servers on speedtest, consistently getting similar slow results. There was also a strange incident where my Netflix stream turned pixelated during speedtest, which was quite unusual.