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Opened 2 years ago

Last modified 16 months ago

#21998 new defect

Unstable Ethernet on Archer C7 - LAN link cycling

Reported by: hrb1@… Owned by: developers
Priority: normal Milestone:
Component: kernel Version: Trunk
Keywords: Ethernet, cycling, up, down, Archer, C7, AR8327 Cc:

Description

Ethernet network drops often, which is detected as a disconect by a station on port 4. Also visible in dmesg:

[191638.449240] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is up
[192542.949872] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is down
[192544.959211] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is up
[193451.469836] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is down
[193453.479164] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is up
[194233.369796] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is down
[194237.389152] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is up
[194251.459802] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is down
[194255.479145] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is up
[194267.539797] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is down
[194271.559169] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is up
[195254.449765] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 4 is down

This has been tested with two different Archer C7 v2.0 boxes. It is not associated with cabling or the connected station on port 4, because the setup works if I replace the Archer C7 with a D-Link DIR 825 with the same trunk version and configuration.

This also happens if I connect the station on any other LAN port.

Attachments (0)

Change History (5)

comment:1 follow-up: Changed 2 years ago by nbd

What OpenWrt version are you using?

comment:2 Changed 2 years ago by anonymous

DESIGNATED DRIVER (Bleeding Edge, r48933)

comment:3 in reply to: ↑ 1 Changed 2 years ago by hrb76

Replying to nbd:

What OpenWrt version are you using?

DESIGNATED DRIVER (Bleeding Edge, r48933)

comment:4 Changed 16 months ago by hrb76

Somehow it works again with Bleeding Edge, 49941.

Ticket can be closed.

comment:5 Changed 16 months ago by hrb76

Somehow it works again with Bleeding Edge, 49941.

Ticket can be closed.

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