SOLVED: How to disable 'Reducing USB 3.0 Interference' when running in 'Repeater Mode'?

[MRxROBOT]

Router: Linksys EA6900, Flashed to Asus RT-AC68U CFE running 380.58_0 (Thank you @RMerlin & @XVortex)

Hi everybody.

My router is set to 'Repeater Mode' and I cannot for the life of me figure out how to disable 'Reducing USB 3.0 Interference'. All of the professional settings disappear when you switch to 'Repeater Mode'.

What can I do to get my external 480GB SSD via USB 3.0 cable recognized? When I connect it now via USB 2 port or USB 3 port I get locked out of the router until I disconnect the drive at which point all is back to normal.

I should also note that I do not have this problem with my 16Gb & 32GB USB 3.0 Flash Drives.

Any help is appreciated.

 

[GDT]

Personally I reverted back the router to normal router mode and disabled it, then switchet to repeater (in my case media bridge) mode.
I'd like to know it I can set it with a ssh command.

 

[MRxROBOT]

Personally I reverted back the router to normal router mode and disabled it, then switchet to repeater (in my case media bridge) mode.
I'd like to know it I can set it with a ssh command.

I wish it were that simple. When I switch back to normal router I can get into professional settings and disable the setting. The SSD is recognized right away and I can set it up but as soon as I switch back to using it in repeater mode it stops working.

Does anybody have the SSH command to disable 'Reducing USB 3.0 Interference'?

or

Any fix at all?

 

[ColinTaylor]

As Merlins firmware is not supported on the EA6900 perhaps you should ask XVortex.

http://www.snbforums.com/threads/linksys-ea6900-with-asus-merlin.23022/#post-168677

 

[MRxROBOT]

As Merlins firmware is not supported on the EA6900 perhaps you should ask XVortex.

http://www.snbforums.com/threads/linksys-ea6900-with-asus-merlin.23022/#post-168677

Fair enough. I sent him a message. Here's to hoping he takes the time to look into this.

The SSD works when the setting to disable 'Reducing USB 3.0 Interference' is available. In Repeater mode the setting is not available. Even if I was running this on an Asus RT-AC68U, how would I disable this in 'Repeater mode'.

Thanks to anyone who has a solution.

 

[jrmwvu04]

It seems to be the nvram variable "usb_usb3" that holds this setting. With the interference reduction enabled, the variable is 0. To disable the interference reduction (and get faster USB 3 speed), change the variable to 1.

nvram set usb_usb3="1"
nvram commit

Reboot to take effect.

edit: You could issue

nvram get usb_usb3

and look for it to return 0 to check this before you make any changes.

 

[MRxROBOT]

It seems to be the nvram variable "usb_usb3" that holds this setting. With the interference reduction enabled, the variable is 0. To disable the interference reduction (and get faster USB 3 speed), change the variable to 1.

nvram set usb_usb3="1"
nvram commit

Reboot to take effect.

edit: You could issue

nvram get usb_usb3

and look for it to return 0 to check this before you make any changes.

Thank you for looking into this for me. usb_usb3 was set at 0, I was successfully able to change it to 1 but it didn't make any difference. The External SSD doesn't mount and just locks me out of the router. As soon as I unplug I can access the router again.

I pulled my system log, maybe this could tell somebody what is going on. I appreciate any and all help coming my way.

 

[jrmwvu04]

Interesting. Quick question, is this SSD a complete solution from a manufacturer or are you using a standard drive with an enclosure or adapter that was not included? Also, is it a SATA interface or otherwise? I'm not convinced it matters at this point, just gathering data points.

 

[MRxROBOT]

Interesting. Quick question, is this SSD a complete solution from a manufacturer or are you using a standard drive with an enclosure or adapter that was not included? Also, is it a SATA interface or otherwise? I'm not convinced it matters at this point, just gathering data points.

WOW you are on it! I can't thank you enough for taking the time to troubleshoot this.

It is this nifty little drive. Works without a hiccup connected to my MacBook.

"link"

 

[MRxROBOT]

Also it should be noted that the drive works perfectly when AsusWRT-merlin is in 'Wireless router mode (Default)'. I just cannot access it in 'Repeater Mode'

 

[jrmwvu04]

Aha. I am an avid OWCer as well, and this is exactly what I had in mind when I was asking about the interface. The drive that's in there is PCIe, and it's quite possible that something about that is throwing the router for a loop when it's in repeater mode. But at this point I'm only guessing, as I don't know what the functional differences are in the operation modes, if any. It seems apparent to me from your logs that xhci is throwing a huge fit, but the reason why, unfortunately I don't know. Someone with more knowledge of the firmware will have to step in. Best of luck.

 

[MRxROBOT]

It's just odd to me that the drive works as intended when under 'Wireless router mode (Default)' and I can disable the 'Reducing USB 3.0 interference' via professional settings. That's what's keeping me from thinking it's related to the drive's interface and moreso related to that one setting. But I don't know much regarding these types of things so...

 

[MRxROBOT]

@jrmwvu04

Your settings definitely disabled 'Reducing USB 3.0 interference' as I now have tons of interference on my 2.4ghz channel haha. Thanks, you did exactly what I was looking to do. Now I need to figure out why the external drive is read under 'Wireless Router Mode' but not 'Repeater Mode'. Hmmm any thoughts other than this router isn't designed to be used with asusWRT-merlin

 

[MRxROBOT]

Personally I reverted back the router to normal router mode and disabled it, then switchet to repeater (in my case media bridge) mode.
I'd like to know it I can set it with a ssh command.

@GDT Have a look below, @jrmwvu04 figured it out.

It seems to be the nvram variable "usb_usb3" that holds this setting. With the interference reduction enabled, the variable is 0. To disable the interference reduction (and get faster USB 3 speed), change the variable to 1.

nvram set usb_usb3="1"
nvram commit

Reboot to take effect.

edit: You could issue

nvram get usb_usb3

and look for it to return 0 to check this before you make any changes.

 

[MRxROBOT]

Does this mean the drive is not getting enough power?

Apr 26 09:03:21 kernel: hub 1-0:1.0: unable to enumerate USB device on port 1