Strange thing happening with router

[sleeps1007]

Hi All,

Before I upgraded to the latest firmware 386.4 I had 386.3_2 on my AX88U and all of a sudden I lost internet connection. Found that the NTP server stopped syncing which is strange because the last time it happened I changed my ethernet cable and all was fine last year and a half. So since it happened again I figured I tried changing the cable again and it synced but my WAN said it's disconnected so I rebooted and WAN was still disconnected and the NTP server stopped syncing. I'm asking myself why did it stop syncing if it worked when I changed the cable so I reconnected the cable and it started syncing again but the WAN still said disconnected. Tried multiple cables and they all did the same thing. Then I noticed on my phone I had wifi internet connection but with my laptop plugged directly to the router it had no internet connection. I upgraded the router to 386.4 and the same thing happened. Upon checking the sys log I kept seeing a repeat of the message shown below and I'm thinking could this be a hardware issue. Please help me understand the message.


Jan 4 22:25:57 RT-AX88U-A820 kernel: potentially unexpected fatal signal 11.
Jan 4 22:25:57 RT-AX88U-A820 kernel: CPU: 1 PID: 28197 Comm: dcd Tainted: P O 4.1.51 #2
Jan 4 22:25:57 RT-AX88U-A820 kernel: Hardware name: Broadcom-v8A (DT)
Jan 4 22:25:57 RT-AX88U-A820 kernel: task: ffffffc02da70b40 ti: ffffffc02e918000 task.ti: ffffffc02e918000
Jan 4 22:25:57 RT-AX88U-A820 kernel: PC is at 0xf70d539c
Jan 4 22:25:57 RT-AX88U-A820 kernel: LR is at 0x1dd14
Jan 4 22:25:57 RT-AX88U-A820 kernel: pc : [<00000000f70d539c>] lr : [<000000000001dd14>] pstate: 600f0010
Jan 4 22:25:57 RT-AX88U-A820 kernel: sp : 00000000ffdf0f38
Jan 4 22:25:57 RT-AX88U-A820 kernel: x12: 00000000000a2050
Jan 4 22:25:57 RT-AX88U-A820 kernel: x11: 00000000f63ff024 x10: 00000000000a23c4
Jan 4 22:25:57 RT-AX88U-A820 kernel: x9 : 00000000f63ff618 x8 : 00000000000a287c
Jan 4 22:25:57 RT-AX88U-A820 kernel: x7 : 00000000f63ff650 x6 : 00000000000a2876
Jan 4 22:25:57 RT-AX88U-A820 kernel: x5 : 0000000000000000 x4 : 00000000f63ff5fc
Jan 4 22:25:57 RT-AX88U-A820 kernel: x3 : 0000000000000000 x2 : 00000000ffdf0f14
Jan 4 22:25:57 RT-AX88U-A820 kernel: x1 : 000000000007d75a x0 : 0000000000000000
Jan 4 22:28:41 RT-AX88U-A820 kernel: httpd (1299): drop_caches: 1

 

[Volt]

It's a known issue that can be ignored, lot's of mentions of it in the 386.4 thread.

 

[sleeps1007]

I followed the nvram steps and after I rebooted the wan connected but the ntp server for some reason does not want to sync

 

[sleeps1007]

I just switched my ethernet cable now everything is fine. Looks like one of my cables is bad.