iOS Connection Dropping on GL-AXT1800

[antonioag]

Hello,

I'm experiencing an issue with my GL-AXT1800 router where the iOS connection drops after some time. Below are the details of my setup:

• OpenWrt Version: OpenWrt 21.02-SNAPSHOT r16399+165-c67509efd7
• Kernel Version: 4.4.60

When the connection drops, the router logs show the following message:

ipheth 1-1:4.2: ipheth_rcvbulk_callback: urb status: -75

After a while, additional errors appear:

ipheth 1-1:4.2: ipheth_carrier_set: usb_control_msg: -71
ipheth 1-1:4.2: ipheth_carrier_set: usb_control_msg: -71
ipheth 1-1:4.2: ipheth_carrier_set: usb_control_msg: -71
ipheth 1-1:4.2: ipheth_carrier_set: usb_control_msg: -71
ipheth 1-1:4.2: ipheth_tx_timeout: TX timeout

If I disconnect and reconnect the iPhone, the connection works again for a while before the same issue recurs. Interestingly, I don’t encounter this problem with my GL-MT1300 using the same cable and the same iPhone.

Could you please assist in troubleshooting this issue?

[admon]

Which firmware do you use?

[antonioag]

I'm on version 4.5.16, but this issue has always been present on this model for me. I now need to use tethering consistently and decided to report it here. I'm attaching a screenshot of what I see on the overview page.

EDIT: I just installed version 4.6.2. I’ll report back with the results.

EDIT 2: I experience the same issue again, after a few minutes I got this:

[ 1028.088558] ipheth 1-1:4.2: ipheth_rcvbulk_callback: urb status: -75`

EDIT 3: This issue seems correlated.

[antonioag]

@admon @yuxin.zou I can consistently reproduce the issue by sending a 1500-byte ping from a device connected to the GL.iNet router to the iPhone using the following command:

ping 172.20.10.1 -s 1472

As soon as the ping is sent, the connection drops, and the error I mentioned earlier appears in the logs. Although a patch exists to address this problem (read here), it was never backported to kernel version 4.4.60, which the AXT1800 still uses. Can we prioritize fixing this?

[admon]

@bruce Something for you and R&D

[bruce]

Thanks admon.

ping 172.20.10.1 -l 1472

I also reproduce this issue, will submit to R&D to further check.
Thanks Antonio.

[antonioag]

Thanks, @bruce . Feel free to contact me if you need more information or additional tests.

[bruce]

Thank you so much!

Update: will be improved this issue in the next one version firmware.

[gone4wd]

fyi: I am seeing this also on Spitz AX.

[bruce]

Have not find this issue in the Spitz AX/X3000 with FW 4.4.9, please post your screenshot/syslog if you have this issue.

[ocsack]

I have upgraded to the newest preview 4.6.3 today..and it seems that the issue still exists.

Any ETA when the issue will be resolved?

[bruce]

is the model AXT1800?

In the fix process, probably the codes update in the next one version.

[bruce]

@antonioag Please try this latest AXT1800 firmware v4.6.3-08/23/2024:

https://dl.gl-inet.com/router/axt1800/

[antonioag]

Hello @bruce , I've been testing this new version for a few hours and I haven't noticed the issue anymore, fortunately. Even sending a 1500-byte ping no longer causes the problem, so it seems to be resolved. Thank you for the prompt resolution.