danjackson
New Around Here
Hey all,
I've got my AC88U with the latest merlin firmware on it. Over the past couple of weeks, I've noticed random crashes and I can't put my finger on the issue.
Here are the symptoms:
- Web Interface is inaccessible (Cannot connect to 192.168.0.1 over HTTP)
- Gateway functionality is offline (Can't connect to WAN - Cannot connect to any range outside of 192.168.0.0/24)
- Hardware switch still works normally
- WiFi Access Point still works normally (WiFi devices can access any other devices on the network)
Details about my router that may be non standard:
- DHCP Disabled - DNS uses TLS to Cloudflare
- Runs VPN client for a site to site connection from home to colo servers
- IPv6 Enabled
- The 2.4Ghz is broken (Not sure how this happened, started acting weird then one day just broke and Linux no longer detects the 2.4 radio as a device whatsoever - pretty sure its a hardware issue - This isn't a big deal, I don't use 2.4Ghz at all)
- I have a laptop cooling pad on the bottom which is externally powered by the USB on another device
- Connects to WAN using PPPoE
- Uses the AIProtection IPS
-
I've been struggling with this for weeks so I've decided to enable the internal debug log and I've decided over the last few days to use Zabbix for SNMP monitoring to another server.
Today, it crashed again. Zabbix reported a spike in CPU load average which I had not seen before. I also got triggers that the RAM went over 90% usage. The load average jumps from around 1 to around 6 and possibly higher and then the device fails. I've attached a screenshot of this. The debug log reports nothing out of the ordinary:
https://pastebin.com/jwz44VNr
I've also attached a screenshot of the RAM usage over time, it appears that the RAM keeps building until the system crashes? Could this happen, could this be an OOM? I don't have any custom scripts running on this, it should be standard setup other than the SNMP which I've only setup very recently
Does anyone have and ideas? Can anyone help me?
I've got my AC88U with the latest merlin firmware on it. Over the past couple of weeks, I've noticed random crashes and I can't put my finger on the issue.
Here are the symptoms:
- Web Interface is inaccessible (Cannot connect to 192.168.0.1 over HTTP)
- Gateway functionality is offline (Can't connect to WAN - Cannot connect to any range outside of 192.168.0.0/24)
- Hardware switch still works normally
- WiFi Access Point still works normally (WiFi devices can access any other devices on the network)
Details about my router that may be non standard:
- DHCP Disabled - DNS uses TLS to Cloudflare
- Runs VPN client for a site to site connection from home to colo servers
- IPv6 Enabled
- The 2.4Ghz is broken (Not sure how this happened, started acting weird then one day just broke and Linux no longer detects the 2.4 radio as a device whatsoever - pretty sure its a hardware issue - This isn't a big deal, I don't use 2.4Ghz at all)
- I have a laptop cooling pad on the bottom which is externally powered by the USB on another device
- Connects to WAN using PPPoE
- Uses the AIProtection IPS
-
I've been struggling with this for weeks so I've decided to enable the internal debug log and I've decided over the last few days to use Zabbix for SNMP monitoring to another server.
Today, it crashed again. Zabbix reported a spike in CPU load average which I had not seen before. I also got triggers that the RAM went over 90% usage. The load average jumps from around 1 to around 6 and possibly higher and then the device fails. I've attached a screenshot of this. The debug log reports nothing out of the ordinary:
https://pastebin.com/jwz44VNr
I've also attached a screenshot of the RAM usage over time, it appears that the RAM keeps building until the system crashes? Could this happen, could this be an OOM? I don't have any custom scripts running on this, it should be standard setup other than the SNMP which I've only setup very recently
Does anyone have and ideas? Can anyone help me?