I was mistaken, the TRENDnet TUC-ET2G is actually based on RTL8156 while the TUC-ET5G is effectively based on Aquantia IC. I made wrong assumption since Aquantia also has a USB3.0 to ETH 2.5Gbe bridge.
Anyhow, so I tested with RTL8156 driver you linked (which actually is part of RTL8152 driver) under Ubuntu 18.04.2. I had to tweaked driver to support TUC-ET2G by adding the idVendor and idProduct of the device. Could have used a modprobe conf file instead of tweaking the code. Now the device works well without flooding anymore the logs ! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1832472 Title: cdc_ncm floods syslog unneccessarily To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832472/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs