I upgraded from a 5800x3d to a 7800x3d and I reinstalled windows. Whenever I hit the download button on any battle.net game download, my internet immediately hangs and if I let it continue to download without pausing, it’ll crash my entire ISP service (tv/phone/internet). If I run cmd > ping googledotcom -t I can literally see it go from 5ms to “request timeout” the moment it begins the download, and the very second I hit pause, everything is ok again.
I tried the rate limiting fix people suggest in bnet options, 9999999999 and 100000000 and neither of those did the trick. I tried updating my realtek lan drivers, it did not work. I tried rolling my realtek lan drivers back to every older version I could get my hands on, it did not work. I tried downloading an external limiter and limiting both battle.net and battle.net update agent to 5mb, it did not work. Limiting to 1-2 mb seems to work for a little longer, but then ultimately crashes again. I tried restarting my modem multiple times, enabled DMZ in router settings, that did not work either.
I have 2 other pc’s in the house, one is a very old core 2 duo from like 2010, and a ryzen 3700x PC, and both of them can download any battle.net game at 100mb/s and higher (although the core 2 duo maxes cpu at 100% usage and then struggles to maintain over 100mb/s). I am also able to download at over 80mb/s continuously on steam, and the worst I see is my ping spike from 5ms to 24ms or so but it immediately goes back to 5ms.
I’m inclined to believe because my other two much older computers can sustain over 100mb/s and not crash my services, and that this pc the download doesn’t even ramp up to over 2mb/s before it begins to crash, that it isn’t my internet.
Looking for any ideas/assistance, thanks very much
–edit. I reinstalled windows, nothing changed, however I noticed after downloading the bnet app off the website, when I begin to install it, it takes a long time to install and my internet nearly crashes while it’s downloading what it needs.