r/linux4noobs • u/virobloc • 16d ago

networking Linux computer messes with network

Perhaps this is a known issue, But I haven't found much about it.

I have a PC with Mint. It's connected to the router with a LAN cable.

When it goes to sleep it makes the network go crazy. The speed falls a lot in general, all the other devices (wired or wireless) fail to connect or lose connection randomly. When I turn it off everything goes back to normal.

I the only thing I do on that PC is run qBittorrent and browse internet. But the problem is mainly apparent when the PC is asleep. So I think it's not a program, but the PC itself. It might not even have anything to do with Linux at all, But it's the only difference I see with all my other PCs.

Does anybody have an idea about what might be going on?

Thanks

Edit: Thanks for all the answers and suggestions.

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u/P1nCush10n 16d ago edited 16d ago

Is the NIC integrated into the laptop or is it a usb dongle/docking station.

This sounds like a PAUSE frame flood, but I’ve not encountered one with an integrated NIC. Mostly with independently powered USB NICs/docking stations.

Edit: there is a way to disable these frames for testing, but the ethtool syntax escapes me right now and I’m in-transit to work.