Question Internet connection dies when downloading a game from Epic or Steam


Jul 24, 2019
Hi. As I said in the title, my internet connection dies after seconds of starting a download on Steam or Epic Games, having to restart my modem/router. This problem started when I changed my desktop PC (sold my older one and built a new one which has a 2.5 Gbit integrated adapter). The weird thing is that this only happens with my desktop. When downloading a game with my laptop over WiFi it works just fine at max speed. My question is could this be an ISP issue? Or is there any config I can do on my desktop to prevent this from happening? I pay for a 100Mbps connection.
Things I tried:
Limiting download speed. Worked but cannot use full speed I pay for.
Commands like ipconfig /flushdns and netsh commands.

Thanks in advance and I hope this can be issued.


Update your post to include full system hardware specs and OS information.

Who is your ISP? Make and model modem? Make and model router?

The router's logs (if available and enabled) may provide some clue. Who has full admin rights to the router? You will need help from that person.

On your computer run "ipconfig /all" (without quotes) via the Command Prompt.

Post the results.
Are you really sure you have to reboot the router. Do other devices also fail at the same time. This would indicate a router and not a PC problem if it actually hurts the router. What happens if you just unplug the ethernet cable or reboot just the pc.

2.5g ports seem to be very hit and miss lately. We see people reporting all kinds of strange issues. In general you can fix most things with driver changes but there does not seem to be a real consensus on if the newest is best or older ones are. There is a very small number of motherboards that have chipsets from intel that have a manufacturing flaw. This can be partially fixed with drivers. Most were manufactured in fall 2020 but they are pretending its no big deal to avoid a recall. They can be made to work but there is so much conflicting information it is unclear.

Now this may not be your problem at all. There are also garbage network "gamer" /QoS software that has been packaged with some motherboard or video cards. You want to insure you do not have any form of these so called network accelerator packages installed.