RT-AC68U rebooting randomly.

[HolgerDK]

I have some trouble with my RT-AC68U randomly rebooting even though i have tried the latest Asus firmware and RMerlins firmware with clean setups.

I just noticed that the CPU is at 75° C/167° F, the 2,4GHz radio is at 51°C/124°F and the 5GHz is at 55° C/131° F.

Those temperatures is when the router isnt sending/receiving more than a little data.

Is that normal temperatures or could they be why the router reboots?

 

[Blinkyz]

Normals temps, you are ok Mine are similars
Maybe you could post here your logs the next time.
I got a similar issues with my 68u few weeks ago and i finally found it was the "Power button".,.... too much sensitive.Just by putting a cup of coffee on the table and the router was rebooting.
Toothpick trick and no more reboots

 

[HolgerDK]

My router is sitting on a windowsill behind my desk, so there is no vibrations. It has been rebooting while i was sitting in my sofa streaming Youtube or Netflix videos.

Here is the log since the last reboot:

http://pastebin.com/ifTud05p

 

[tim]

Jan  1 01:00:16 kernel: device vlan1 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth0 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth1 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth2 entered promiscuous mode

This doesn't look normal, what F/W do you run?

 

[HolgerDK]

Jan  1 01:00:16 kernel: device vlan1 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth0 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth1 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth2 entered promiscuous mode

This doesn't look normal, what F/W do you run?

AsusWRT-Merlin 378.55

 

[RMerlin]

Jan  1 01:00:16 kernel: device vlan1 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth0 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth1 entered promiscuous mode
Jan  1 01:00:16 kernel: device eth2 entered promiscuous mode

This doesn't look normal, what F/W do you run?

That's normal, it's because of the bridge.

 

[tim]

That's normal, it's because of the bridge.

ah right, thanks for setting me straight.

 

[HolgerDK]

I have noticed that the router reboots if i stream Netflix or Youtube on my Samsung SmartTV.

 

[hggomes]

If you can easily reproduce it while streaming, try this via SSH:

tail -f /tmp/syslog.log

Check if you see anything unusual while the "crash/reboot" happens.

 

[HolgerDK]

Yes i could do that if i had not RMA'ed it today. The rebooting has become worse and worse since the start and the Netflix/Youtube rebooting is new.

 

[hggomes]

Ive seen one with that issue and it was a HW problem with the memory chip, i have tested with memtest and it failed.

 

[HolgerDK]

Ive seen one with that issue and it was a HW problem with the memory chip, i have tested with memtest and it failed.

Thank you for that info. I had a suspicion that it was hardware related but i never thought of testing the router with memtest.

 

[HolgerDK]

The issue has been resolved through RMA where i got a new router.

Thanks for your help

 

[soleillune]

Ive seen one with that issue and it was a HW problem with the memory chip, i have tested with memtest and it failed.

What is the method to test with memtest?

 

[tim]

What is the method to test with memtest?

I would also like to know this please.