RT-AC68U as AiMesh node cuts half LAN speed

ScooterRS

New Around Here
i do some test and it seems only working with full speed when you flash from a working old firmware.

so i go back to
aimesh router merlin 386.3_2 and aimesh nodes leave on 3.0.0.4.386_48262 = 450 mbps
aimesh router merlin 386.3_2 and aimesh nodes 386.3_2 = 950 mbps

flash from 386.3_2 to 3.0.0.4.386_48262 still on 950 mbps
when you now make a factory reset you got stuck back on 450mbps

so it seems like it takes some old configurations from 386.3_2
RT-AC3100_386.5_2.trx merlin is the same
 

hemandk

New Around Here
Hi,

So I have also run into this issue, that the speed on my AC68U was reduced significantly after a upgrading to the latest firmware.

But if I move the cable between my AC86U and AC68U to LAN1 instead of the WAN port my speed is back up.

However this messes up my AIMESH network, so not really a viable solution.

Speed test done with AC86U -> AC68U LAN1
1651860108867.png

Speed test done with AC86U -> AC68U WAN port
1651860148373.png
 
Last edited:

sharkusk

New Around Here
I'm also having this problem with my RT-AX3000 + AC68U as mesh node with Merlin FW version 386.5_2.

Connecting to the WAN port I get a max of ~500 mbit/sec; moving to the LAN port of the AC68U results in 950+ mbit/sec (but breaks AiMesh). At this point I'm thinking about ditching the AiMesh config.
 

Ranger802004

Senior Member
I'm also having this problem with my RT-AX3000 + AC68U as mesh node with Merlin FW version 386.5_2.

Connecting to the WAN port I get a max of ~500 mbit/sec; moving to the LAN port of the AC68U results in 950+ mbit/sec (but breaks AiMesh). At this point I'm thinking about ditching the AiMesh config.
Is it possible that deep packet inspection is happening on your AIMesh node going out of the WAN port? SSH into your AIMesh Node and run this command to see what it says.
Code:
nvram show | grep -e "bwdpi_"
 

lepa71

Regular Contributor
I have had similar issues with bridge speed but I have tried the AIMech as well.

Are you guys saying that 386.3_2 works?
 

harrybuckman

New Around Here
I have the same issue with 386.5_2 using two ac68u using Ethernet backhaul. I get 980 Mbps on the main and 480-550 Mbps on node using the lan connection. The wireless on the node is faster 600+ Mbps. Hopefully this firmware issue gets figured out because other than this issue it has preformed well.
 

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