I have this Anker USB-Hub/Ethernet Adapter (Realtek r8153/8152) and after a bit of startup problems which where resolved by tlp-blacklisting it, it worked just fine for a view days.
Yesterday out of (seemlingly) nowhere the connection dropped from 1000Mbit/s to 100mbit/s.
Tried to force it to 1Gbit with
sudo ethtool -s enn0s20u1u3 speed 1000 duplex full
but it fails to estalish a connection
Nothing on the Hardware (cable, switch etc.) was changed.
ethtool ouput is this:
Settings for enp0s20u1u3: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 100baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Link partner advertised pause frame use: Symmetric Link partner advertised auto-negotiation: Yes Link partner advertised FEC modes: Not reported Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00007fff (32767) drv probe link timer ifdown ifup rx_err tx_err tx_queued intr tx_done rx_status pktdata hw wol Link detected: yes
inix -Nxxi for this device is:
Device-3: Realtek RTL8153 Gigabit Ethernet Adapter type: USB driver: r8152 bus ID: 3-1.3:5 chip ID: 0bda:8153 IF: enp0s20u1u3 state: up speed: 100 Mbps duplex: full mac: 00:e0:4c:00:01:51
Is it possible that it is somehow related to USB-Power? I tried to plug and unplug two USB devices (Wacom Tablet and StreamDeck Mini) during testing and at one point the deices didn't "boot"/power-up proberly. I tried
lsusb -v|egrep "^Bus|MaxPower" and the worked again.
And now that I think of (but cannot tell for sure if correlated), I installed "autofs" yesterday.