Comment 2 for bug 1736794

This is a duplicate of https://bugzilla.kernel.org/show_bug.cgi?id=191601, which also contains a script that might be able to reset your card without a reboot.

Please see my longer comments here: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1673344. In summary, I believe this to be a longstanding hardware-software bug in Linux due to a hardware degraded 7260 NIC. Replacing the 7260 card fixed it for me.