@RicochetIIBoth of those solutions don't work. It's a brand new controller (I have older controller too and doesn't change anything). And it only happens in online mode. Offline, perfect speed with no delay or "floating".
As for my ISP, cannot change modem. My ISP doesn't let us change modem.
Community ManagerI can only echo what @RicochetII is saying. Personally, I won't use any equipment supplied by an ISP. Especially those modem/router combo units. They're just not great for all gaming. Especially sports games so I invest in my own modem and router. It does seem unusual that they won't let you use your own equipment. It sounds like you have the router taken care of so possibly, the issue is with the modem. You want to make sure it supports the speed you're supposed to be getting as well as DOCSIS 4.0.
Also, it's very hard for us to troubleshoot a connection feeling sluggish. If you're noticing a 1 second delay though, that is most likely an issue. Gaming mode is always recommended, which you're using. It would also be good to have a premium HDMI cable. It would be good to check yours for any damage as well.
When you enabled QoS, did you prioritize your console? When you play, is there a lot of traffic on your network? Possibly someone else streaming video?
It sounds like you've been through some really thorough troubleshooting. We're not aware of any issues on our end. The AT&T issue has a potential resolution in place currently. It also was different as players couldn't connect at all so I don't think this is related.
