RT-AC68U_384.16 UI Freezes

[dunbro]

The RT-AC68U_384.16_0 version of firmware UI freezes around two to three days after a reboot. All router functions appear to be working as expected but can't access the router via a web browser. This has been occurring ever since upgrading on the 6th April 2020. Note I have 4 wired and over 16 wireless devices permanently connected at any one time. <edit> Decided to switch of QOS as it's fairly pointless and will see if this helps with the memory leak.

 

[Butterfly Bones]

Do you have SSH access to the router? If so SSH in and issue this command. Note the underscore.

service restart_httpd

 

[ChatmanR]

The RT-AC68U_384.16_0 version of firmware UI freezes around two to three days after a reboot. All router functions appear to be working as expected but can't access the router via a web browser. This has been occurring ever since upgrading on the 6th April 2020. Note I have 4 wired and over 16 wireless devices permanently connected at any one time. <edit> Decided to switch of QOS as it's fairly pointless and will see if this helps with the memory leak.

I have have issues when I have 100+ devices connected. However, using the Android app to access it works just fine.

 

[dunbro]

Do you have SSH access to the router? If so SSH in and issue this command. Note the underscore.

service restart_httpd

Good idea! I didn't but have on the LAN only side now. Thx

 

[dunbro]

I have have issues when I have 100+ devices connected. However, using the Android app to access it works just fine.

Didn't think of this either, but will test it out next time (if there is a next time after switching off QOS). Thx, but restarting httpd as suggested by Butterfly Bones is a great idea..

 

[ArC]

I have the RT-AC5300_384.16 (with 20 devices connected) with the same problem . Access through the Web GUI is frozen after 2 days. Also not possible to enter through the iOS App (ASUS Router). The only solution is to reset the router to restore access.

 

[dunbro]

I have the RT-AC5300_384.16 (with 20 devices connected) with the same problem . Access through the Web GUI is frozen after 2 days. Also not possible to enter through the iOS App (ASUS Router). The only solution is to reset the router to restore access.

Yup I'm thinking there is either a bug in this latest release or the router simply can't handle the amount of simultaneous connections. I posted to see how many people have the same issue, maybe Eric can have a look at this before the next firmware release.

 

[dunbro]

Do you have SSH access to the router? If so SSH in and issue this command. Note the underscore.

service restart_httpd

I've enabled SSH on the router and allowed SSH through the firewall on the Private side but I'm not connecting. Any tips?

 

[Butterfly Bones]

I've enabled SSH on the router and allowed SSH through the firewall on the Private side but I'm not connecting. Any tips?

I run Linux, most are on windows,so hopefully someone can help you troubleshoot this.

 

[cmkelley]

Yup I'm thinking there is either a bug in this latest release or the router simply can't handle the amount of simultaneous connections. I posted to see how many people have the same issue, maybe Eric can have a look at this before the next firmware release.

It's a known issue with asuswrt's httpd server, it's been a "problem" for ages. IIRC Eric expressed a disinterest in debugging other people's code. Several people here are running with large numbers of connections without issues.

I've enabled SSH on the router and allowed SSH through the firewall on the Private side but I'm not connecting. Any tips?

What are you using to try to connect to the router? What happens when you try to connect to it? If you have SSH allowed on LAN only, and "Allow Password Login" set to YES, virtually any SSH client should be able to login to the router with "ssh [Router Login Name]@w.x.y.z" assuming you left the SSH port as 22.

 

[dunbro]

It's a known issue with asuswrt's httpd server, it's been a "problem" for ages. IIRC Eric expressed a disinterest in debugging other people's code. Several people here are running with large numbers of connections without issues.
What are you using to try to connect to the router? What happens when you try to connect to it? If you have SSH allowed on LAN only, and "Allow Password Login" set to YES, virtually any SSH client should be able to login to the router with "ssh [Router Login Name]@w.x.y.z" assuming you left the SSH port as 22.

OK fair enough, I can understand why he wouldn't want to. I'd never had a problem with previous firmware releases, anyway let's see if not running QOS makes a difference.
Using Putty and it's working now, not sure why there was a delay from configuring it to actually working but all is good. If it happens again I'll restart httpd

 

[dunbro]

Do you have SSH access to the router? If so SSH in and issue this command. Note the underscore.

service restart_httpd

Didn't work I think the memory leak is so bad it can't even run any commands:
xxxxxx@RT-AC68U-21A0:/bin# ls -la
ls: out of memory
xxxxxx@RT-AC68U-21A0:/bin# service restart_httpd
Segmentation fault
xxxxxx@RT-AC68U-21A0:/bin# service restart_httpd
Killed

 

[cmkelley]

Didn't work I think the memory leak is so bad it can't even run any commands:
xxxxxx@RT-AC68U-21A0:/bin# ls -la
ls: out of memory
xxxxxx@RT-AC68U-21A0:/bin# service restart_httpd
Segmentation fault
xxxxxx@RT-AC68U-21A0:/bin# service restart_httpd
Killed

Okay, that's new. Can you describe your setup? Obviously an AC68U, but do you have Entware/amtm/other scripts running? Do you have a swap file? What size? Is this a converted TM-AC1900? There's no way a straight AC86U with Merlin should segfault or run out of memory.

 

[dunbro]

Okay, that's new. Can you describe your setup? Obviously an AC68U, but do you have Entware/amtm/other scripts running? Do you have a swap file? What size? Is this a converted TM-AC1900? There's no way a straight AC86U with Merlin should segfault or run out of memory.

Don't have Entware/amtm/other scripts running, no swap file. It's not a converted AC-1900. Anyway I upgraded to firmware 384.17 from .16 last night so let's see how that goes.

 

[cmkelley]

Don't have Entware/amtm/other scripts running, no swap file. It's not a converted AC-1900. Anyway I upgraded to firmware 384.17 from .16 last night so let's see how that goes.

Dang. If it happens again, I'm afraid the best option at this point (and believe me, I only go to this as a last resort) is a complete wipe and start over with @L&LD's M&M config (https://www.snbforums.com/threads/n...l-and-manual-configuration.27115/#post-205573). Seriously, you should absolutely not be running out of memory or getting segfaults with your setup.