General Questions • Bizarre Bandwidth Issue

I am not an expert, but I would first look at the output of the ethtool command for the affected device.

Settings for eno1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Auto-negotiation: on
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
MDI-X: on (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes

I have tried specifying 1000/full and turning auto negotiation off on both the device and my router before making my initial post, it didn't solve the problem. As a sanity check, I have also tried using a USB to ethernet adapter and got the same results.

Statistics: Posted by DebianDowner — 2024-02-01 01:32 — Replies 3 — Views 133

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