USB3 issue on RT-AC68U

[matthew_eli]

Hi Merlin, and first of all, thank for your hard work!

I've encountered a problem updating my RT-N66U to RT-AC68U and it is the USB3 hard disk I already have (2TB Toshiba USB3.0 external hard drive Stor.E Canvio). No problem so far with RT-N66U. With RT-AC68U when I turn on the router by pushing the power-on button and I leave the Hard Disk attached in the USB3 port, it wouldn't be mounted and I get these messages on the log:

Jan 12 09:54:16 kernel: hub 2-0:1.0: unable to enumerate USB device on port 1
Jan 12 09:54:17 kernel: usb 1-1: Device not responding to set address.
Jan 12 09:54:17 kernel: usb 1-1: Device not responding to set address.
Jan 12 09:54:17 kernel: usb 1-1: device not accepting address 0, error -71
Jan 12 09:54:17 kernel: usb 1-1: Device not responding to set address.
Jan 12 09:54:17 kernel: usb 1-1: Device not responding to set address.
Jan 12 09:54:17 kernel: usb 1-1: device not accepting address 0, error -71
Jan 12 09:54:17 kernel: usb 1-1: Device not responding to set address.
Jan 12 09:54:18 kernel: usb 1-1: Device not responding to set address.
Jan 12 09:54:18 kernel: usb 1-1: device not accepting address 0, error -71
Jan 12 09:54:18 kernel: usb 1-1: Device not responding to set address.
Jan 12 09:54:18 kernel: usb 1-1: Device not responding to set address.

At this point trying to detach and attach the hard disk on the same port (USB3) does not fix the issue; instead, attaching it on the USB2 port, solve the problem and the hard disk would be mounted normally. For correctly mounting the hard disk on the USB3 port at the fist try, I need to plug it only after a while the router has been rebooted.

It goes without saying that once the hard disk is correctly mounted, it works flawlessly.

Could you help me fixing this problem? I tried your firmware .37 and .38 and they both suffers the same issue

Thanks

 

[matthew_eli]

Some other useful info:

FSTAB:

LABEL=MAT_BIGGEST /tmp/mnt/MAT_BIGGEST ext3 rw,nodev,noatime 0 0
LABEL=optware /tmp/mnt/optware ext3 rw,nodev,noatime 0 0
LABEL=SWAP none swap sw 0 0

INIT-START:

#!/bin/sh

mkdir -p /tmp/mnt/MAT_BIGGEST
mkdir -p /tmp/mnt/optware
swapon LABEL=SWAP

As you can see, the Hard Drive is formatted in EXT3 filesystem

 

[RMerlin]

Disable the "Reduce USB 3.0 interference" option under Wireless -> Professional (2.4 GHz).

 

[matthew_eli]

Thanks Merlin for the reply, but I already disabled it and the problem still persists

 

[RMerlin]

Looks like it's having problems with the disk then. Try a different USB cable just in case (I know at least one user who fixed his problem that way).

 

[matthew_eli]

Hi Merlin, thanks again for the reply. I'll try for a new USB3 cable: do you have any suggestion for it?

BTW, it's a quie strange behaviour, since it happens only when I reboot the router by hardware (I mean pressing the button for powering it off and then on); when I reboot it by software, either by Web UI or SSH, and the Hard Disk was already mounted, the problem does not occur.

For having a whole picture, I enclose also the log info when the Hard disk is mounted correctly:

Jan  1 01:00:17 kernel: EXT3-fs: barriers not enabled
Jan  1 01:00:17 hotplug[554]: USB ext4 fs at /dev/sda1 mounted on /tmp/mnt/MAT_BIGGEST
Jan  1 01:00:17 kernel: kjournald starting.  Commit interval 5 seconds
Jan  1 01:00:17 kernel: EXT3-fs (sda1): using internal journal
Jan  1 01:00:17 kernel: EXT3-fs (sda1): mounted filesystem with ordered data mode
...
Jan  1 01:00:28 kernel: Adding 1048572k swap on /dev/sda3.  Priority:-1 extents:1 across:1048572k 
Jan  1 01:00:29 kernel: EXT3-fs: barriers not enabled
Jan  1 01:00:29 hotplug[557]: USB ext4 fs at /dev/sda2 mounted on /tmp/mnt/optware
Jan  1 01:00:29 kernel: kjournald starting.  Commit interval 5 seconds
Jan  1 01:00:29 kernel: EXT3-fs (sda2): using internal journal
Jan  1 01:00:29 kernel: EXT3-fs (sda2): mounted filesystem with ordered data mode
Jan  1 01:00:30 hotplug[557]: USB partition unmounted from /tmp/mnt/optware
Jan  1 01:00:31 hotplug[557]: USB ext4 fs at /dev/sda2 mounted on /tmp/mnt/optware
Jan  1 01:00:31 kernel: EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: user_xattr

 

[RMerlin]

Hi Merlin, thanks again for the reply. I'll try for a new USB3 cable: do you have any suggestion for it?

Anything that doesn't feel too cheap. Usually, any USB3 cable bought at a store (rather than included with an HDD) should be fine.