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RT-AX86U rebooting

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updrage

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Hi! First-time poster here. I have an ASUS RT-AX86U that is having constant rebooting issues. I exchanged my first AX86U about a month ago, and the issues persist. I'm just hoping for some help with pinpointing where the issue lies here.

It's running in router mode on Merlin 386.1-2. I'm using Comcast as my ISP, and my modem is the Netgear CM2000 which is hooked to the 2.5 port on AX86U via Cat6 cable.

I can't find anything in the logs that makes sense to me for helping to pinpoint the problem. The previous AX86U had the same issue (way more often than the current one) on stock ASUS firmware.

I'm hoping you fine folks might be able to help me see something in my log file that I'm missing that can help me pinpoint the problem. I've included a link to my crashlog below.

Logs
 
Did you set the WAN to the 2.5 port?
Do you have any USB devices plugged in?

Screenshot 2021-03-03 105703.jpg
 
Sorry about that!

Yes. I do have it set to 2.5G WAN.
No. I do not have any USB devices connected.
 
Hi! First-time poster here. I have an ASUS RT-AX86U that is having constant rebooting issues. I exchanged my first AX86U about a month ago, and the issues persist. I'm just hoping for some help with pinpointing where the issue lies here.

It's running in router mode on Merlin 386.1-2. I'm using Comcast as my ISP, and my modem is the Netgear CM2000 which is hooked to the 2.5 port on AX86U via Cat6 cable.

I have experienced the same thing on my 12 day old AX86U twice in the last 17 hours. The first time (that I was aware of) occurred at midnight last night and I wondered if it had something to do with daylight saving time starting. The 2nd time was just 10 minutes ago and my log entries changed from March 14th to May 5th. It was only down for about a minute or two.
The entries around the transition are below. I am also on Comcast with an Arris SB6183 modem and running Merlin 386.1-2. I have seen these May 5 log entries before so I think this may have happened and I just wasn't aware of it because I wasn't online. I do have a flash drive attached but only since yesterday. I am using the 1Gig WAN port.

Mar 14 16:07:57 kernel: eth1 (Ext switch port: 0) (Logical Port: 8) (phyId: 8) Link DOWN.
Mar 14 16:08:00 kernel: eth1 (Ext switch port: 0) (Logical Port: 8) (phyId: 8) Link Up at 1000 mbps full duplex
Mar 14 16:10:17 kernel: eth1 (Ext switch port: 0) (Logical Port: 8) (phyId: 8) Link DOWN.
Mar 14 16:10:20 kernel: eth1 (Ext switch port: 0) (Logical Port: 8) (phyId: 8) Link Up at 100 mbps full duplex
Mar 14 16:10:55 wlceventd: wlceventd_proc_event(505): wl0.1: Auth B8:A1:75:7D:9C:1D, status: Successful (0)
Mar 14 16:10:55 wlceventd: wlceventd_proc_event(534): wl0.1: Assoc B8:A1:75:7D:9C:1D, status: Successful (0)
May 5 01:05:08 kernel: klogd started: BusyBox v1.25.1 (2021-02-12 17:47:23 EST)
May 5 01:05:08 crashlog: LOG
May 5 01:05:08 kernel: fc_evt task created successfully
May 5 01:05:08 kernel: max_ent = 16384 intvl_msec = 10000 num_slices = 2000 num_ent = 9 period_msec = 5
May 5 01:05:08 crashlog: <4> libphy init_addr( (null) - (null)), core_addr(ffffffbffcff6000 - ffffffbffcff9ad8)
May 5 01:05:08 kernel: NBUFF v1.0 Initialized
May 5 01:05:08 crashlog: <4> cdc_acm init_addr( (null) - (null)), core_addr(ffffffbffcfeb000 - ffffffbffcfed670)
May 5 01:05:08 kernel: ^[[0;36;44mTotal # of labels = 68^[[0m
May 5 01:05:08 kernel: ^[[0;36;44mInitialized fcache state^[[0m
May 5 01:05:08 kernel: Pkt HW acceleration is disabled/unavailable.
May 5 01:05:08 kernel: ^[[0;36;44mBroadcom Packet Flow Cache Char Driver v4.0 Registered<302>^[[0m
May 5 01:05:08 kernel: fc_timer_task created successfully
May 5 01:05:08 crashlog: <4> usbnet init_addr( (null) - (null)), core_addr(ffffffbffcfdf000 - ffffffbffcfe2000)
May 5 01:05:08 kernel: Pkt HW acceleration is disabled/unavailable.
May 5 01:05:08 kernel: Created Proc FS /procfs/fcache
May 5 01:05:08 kernel: ^[[0;36;44mBroadcom Packet Flow Cache registered with netdev chain^[[0m
May 5 01:05:08 kernel: ^[[0;36;44mBroadcom Packet Flow Cache learning via BLOG enabled.^[[0m
May 5 01:05:08 kernel: ^[[0;35m[FHW] pktDbgLvl[0xffffffbffc481c08]=0^[[0m
May 5 01:05:08 kernel: ^[[0;34m[FHW] fhw_construct: ^[[0m
May 5 01:05:08 crashlog: <4> mii init_addr( (null) - (null)), core_addr(ffffffbffcfda000 - ffffffbffcfdab70)
May 5 01:05:08 kernel: ^[[0;36;44mInitialized Fcache HW accelerator layer state^[[0m
May 5 01:05:08 kernel: flwStatsThread created. numFlwsPerPoll 546 maxFlwIdx 16383
May 5 01:05:08 kernel: ^[[0;36;44mFcache Pathstats created^[[0m
May 5 01:05:08 kernel: ^[[0;36;44mConstructed Broadcom Packet Flow Cache v4.0^[[0m
May 5 01:05:08 kernel: Broadcom Command List Driver v1.0
 
Go to either the Asus 386 beta or Merlin 386.2 beta 1. I had issues until I replaced the cable to the ONT. I use used CAT5 and made the end connections.
 
After about 3 days and 6 hours of uptime, my AX86u apparently rebooted spontaneously last night because this morning it shows uptime of about 13 hours. I guess I can live with it if it's only every 3 days or so. At least it didn't do it while we were streaming!
 

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