MT-3000 (Beryl AX) - Network issue

Rkistart · June 22, 2023, 8:33am

Hello everyone!
I recently bought an MT-3000 (Beryl AX).
Since using the router, I have at least 3 to 4 wifi disconnections per day.
I test with RJ-45 cable → The same.

My network.

Internet — Firewall (opnsense) — MT-3000 — WIFI and Cable connection

Does anyone else have the same problem?

SpitzAX3000 · June 23, 2023, 4:36am

check the kernel and system logs and share the relevant ones so that we pinpoint the issue.

Rkistart · June 23, 2023, 9:25am

I found eth0 interface disconnects in the log!!! Why has the MT-3000 lost the network. I tested with the old router, no problem

[26281.196215] 7981@C15L3,PeerPairMsg4Action() 6639: ===>Receive msg 4
[26281.207975] 7981@C15L2,PeerPairMsg4Action() 7002: AP SETKEYS DONE(rax0) - AKMMap=WPA2PSK, PairwiseCipher=AES, GroupCipher=AES, wcid=3 from 14:7d:da:e4:19:de
[26281.207975] 
[26330.762819] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[26330.826659] mtk_soc_eth 15100000.ethernet eth0: configuring for fixed/2500base-x link mode
[26334.921785] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[26334.930247] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[26413.750193] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[26413.813855] mtk_soc_eth 15100000.ethernet eth0: configuring for fixed/2500base-x link mode
[26417.909156] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[26417.917621] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready[26281.196215] 7981@C15L3,PeerPairMsg4Action() 6639: ===>Receive msg 4
[26281.207975] 7981@C15L2,PeerPairMsg4Action() 7002: AP SETKEYS DONE(rax0) - AKMMap=WPA2PSK, PairwiseCipher=AES, GroupCipher=AES, wcid=3 from 14:7d:da:e4:19:de
[26281.207975] 
[26330.762819] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[26330.826659] mtk_soc_eth 15100000.ethernet eth0: configuring for fixed/2500base-x link mode
[26334.921785] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[26334.930247] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[26413.750193] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[26413.813855] mtk_soc_eth 15100000.ethernet eth0: configuring for fixed/2500base-x link mode
[26417.909156] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[26417.917621] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

Rkistart · June 23, 2023, 9:53am

another log

[27709.522833] mtk_soc_eth 15100000.ethernet eth0: Link is Down
[27709.542431] mtk_soc_eth 15100000.ethernet eth0: configuring for fixed/2500base-x link mode
[27713.649814] mtk_soc_eth 15100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[27713.658287] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

SpitzAX3000 · June 23, 2023, 11:20am

Is it connected to your upstream router using an Ethernet cable from the WAN port? If yes, try to disable flow control on the open sense for the connected interface and test again? If it still gets disconnected then change the Ethernet cable.

Rkistart · June 23, 2023, 10:09pm

Thanks @SpitzAX3000, i replace my old network cable by network cable include in MT-3000 box.
It’s work fine !

How is it possible for a cable to cause so many problems?

SpitzAX3000 · June 24, 2023, 12:10pm

I suspected that from the flow control errors. Flow Control is a mechanism used by the Ethernet data link protocol.

So if you see errors related to an Ethernet, you either look at the Ethernet settings between two devices or suspect that the cable has some damage.

Rkistart · June 26, 2023, 6:45pm

I thought the problem was solved, but it’s not .

I still have the flow control issue on the wan interface (eth0) which is connected to my opnsense firewall. I did disable flow control on the firewall.

Can we disable flow control on the MT-3000?

SpitzAX3000 · June 27, 2023, 10:12am