Connection Dropped

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Donga120

Occasional Visitor
Hi,

I keep getting dropped connection on my Asus AC86U running 386_2 and now 386_3. Attahced is some logs if it helps, even the WAN cuts out as well as WiFi networks (both 2.4 and 5.0). Not sure what logs I need to post, but this was the last lot when it last went: https://pastebin.com/uhpZALE3
 

ColinTaylor

Part of the Furniture
Unfortunately there's nothing useful in that log file as it doesn't cover the time period that the problem occurred. It appears to only show a 10 minute period after the router had rebooted.
 

ColinTaylor

Part of the Furniture
If the "dropped connection" happened at 13:00 in your log file that's because your router crashed and rebooted itself. The reason for the crash is unclear other than there was a memory corruption that caused a kernel panic.

Your log file is full of pktrunner ucast errors which might be related to the problem. I suggest that you start by removing your add-on scripts (Diversion, ntpMerlin and anything else) and seeing if that stops the error messages.
 

mcmxmk19

Occasional Visitor
Can you elaborate on your “connection dropped?” I have been experiencing connection issues recently as well. My connection drops, all LEDs stay on, it’s for a moment or two. It’s at the router level, impacting all devices. My devices will indicate there’s no connection, then reconnect. It happens for maybe 2 times a day, for 2-3 minutes.

I am not running any scripts, I am running Quad9 as my DNS. My initial theory is that a incorrect DNS setup is the cause.
 

Donga120

Occasional Visitor
Can you elaborate on your “connection dropped?” I have been experiencing connection issues recently as well. My connection drops, all LEDs stay on, it’s for a moment or two. It’s at the router level, impacting all devices. My devices will indicate there’s no connection, then reconnect. It happens for maybe 2 times a day, for 2-3 minutes.

I am not running any scripts, I am running Quad9 as my DNS. My initial theory is that a incorrect DNS setup is the cause.

Sounds similar. I have just initialized the router and setup as new. I only have Ethernet connections on, and so far after 1 hour, I have 0 errors or warnings on the log. As soon as I add a wireless device, it spits the dummy out and throws errors. Unfortunately haven't had enough time to test the connection drops yet but will update. I will also check the DNS theory, I was using Cloudfare 1.1.1.2 and 1.0.0.2 IIRC....
 

Donga120

Occasional Visitor
Had been fine for 3 days, however it has now rebooted twice in the past 30 minutes... How on earth do you diagnose, reset to factory and add bit by bit?
 

Donga120

Occasional Visitor
UPDATE: Left the router in the M&M state. Been perfect for 3 days, not a single issue, with Wi-Fi connections too. Will reformat the USB in a PC and add AMTM, then leave it for another 3 days and see how it goes. Will report back.
 

Donga120

Occasional Visitor
It gave way again. I nuked the router again, setup M&M and within 15 minutes, 6 Apple devices and Ring started throwing the errors up, WAN and LAN light went off, the internet light went red before all going white again after 2 minutes or so.


Aug 24 20:52:38 wlceventd: wlceventd_proc_event(527): eth6: Auth AA:01:81:17:9E:DD, status: Successful (0), rssi:0
Aug 24 20:52:38 wlceventd: wlceventd_proc_event(556): eth6: Assoc AA:01:81:17:9E:DD, status: Successful (0), rssi:0
Aug 24 20:52:39 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:52:39 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:52:39 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key corruption when adding flow net_p=ffffffc016993dc8 dir=0 old_key=0x2000236c new_key=0x20002394
Aug 24 20:52:39 kernel: ^[[0m
Aug 24 20:52:42 dnsmasq-dhcp[3106]: DHCPDISCOVER(br0) aa:01:81:17:9e:dd
Aug 24 20:52:42 dnsmasq-dhcp[3106]: DHCPOFFER(br0) 192.168.1.153 aa:01:81:17:9e:dd
Aug 24 20:52:42 dnsmasq-dhcp[3106]: DHCPDISCOVER(br0) aa:01:81:17:9e:dd
Aug 24 20:52:42 dnsmasq-dhcp[3106]: DHCPOFFER(br0) 192.168.1.153 aa:01:81:17:9e:dd
Aug 24 20:52:43 dnsmasq-dhcp[3106]: DHCPREQUEST(br0) 192.168.1.153 aa:01:81:17:9e:dd
Aug 24 20:52:43 dnsmasq-dhcp[3106]: DHCPACK(br0) 192.168.1.153 aa:01:81:17:9e:dd
Aug 24 20:52:46 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:52:46 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:53:59 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:53:59 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:53:59 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key corruption when adding flow net_p=ffffffc0153d62e8 dir=0 old_key=0x20002866 new_key=0x200028b8
Aug 24 20:53:59 kernel: ^[[0m
Aug 24 20:54:01 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:54:01 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:54:59 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key corruption when deleting flowfor net_p=ffffffc016993dc8
Aug 24 20:54:59 kernel: ^[[0m
Aug 24 20:55:17 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key corruption when deleting flowfor net_p=ffffffc016823a28
Aug 24 20:55:17 kernel: ^[[0m
Aug 24 20:56:29 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:56:29 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:56:29 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key corruption when adding flow net_p=ffffffc016993a28 dir=0 old_key=0x20002c02 new_key=0x20002c04
Aug 24 20:56:29 kernel: ^[[0m
Aug 24 20:56:29 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:56:29 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:56:29 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:56:29 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:56:29 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:56:29 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:56:29 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:56:29 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m
Aug 24 20:56:38 kernel: ERR: bdmf_attrelem_add_as_buf#4250: ucast: status:Entry already exists. attribute:flow index:4294967295
Aug 24 20:56:38 kernel: ^[[0;33;41m[ERROR pktrunner] runnerUcast_activate,1971: Cannot rdpa_ucast_flow_add^[[0m



Not sure if these are the cause of the router rebooting itself, but I may just throw it in the bin and buy an AX86U....
 
Last edited:

Donga120

Occasional Visitor
UPDATE: This has been traced back to Ring (doorbell, chime and security light). Very strange so I have temporarily disconnected them for now whilst I do some more digging.
 

Donga120

Occasional Visitor
Was fine for around 10 days, added Ring about 5 days after it was stable, now it has crashed 3 times within 6 hours. Coincidentally, i have used airplay to an AV receiver and wonder if this may of caused the issue. Crash log is below:

 

ColinTaylor

Part of the Furniture
There is no crash information in that log file. It just shows the normal boot up information (and the pktrunner entries).
 

Donga120

Occasional Visitor
There is no crash information in that log file. It just shows the normal boot up information (and the pktrunner entries).
How do I find a crash log? Using Scribe it says:

Log file will display here. If you are seeing this message,it means the log file cannot be loaded.
Please check your USB to check the /opt/var/log directory exists.

I have FTP into the router but I re-installed Scribe beforehand, so I have this, however I am unable to open or copy log files so I can't view them due to permissions?

87.jpg
 
Last edited:

Donga120

Occasional Visitor
I spoke to Asus who said it sounded like a hardware defect and I should go to the retailer I got it off, which was......Amazon. I went on the live chat and within 4 minutes was offered a full refund or replacement item, I went for the full refund option and I ordered a new AX-86U instead. Perfect service.

Sadly can't provide any details on what is/was wrong with the router but given it does it on factory settings after a full reset makes me think it is 100% hardware related.
 

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