OK, so we know two things now: 1) The issue happens when the CPU reaches deeper power saving state, likely PC10. 2) Temporarily increase CPU usage via cpu_latency_qos_add_request() to disable C-State doesn't help.
So please file an upstream bug at https://bugzilla.kernel.org/ Product: Drivers Component: Network -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1927925 Title: Massive network problems with I219-V on Thinkpad T14 Gen2 (e1000e) To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1927925/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
