Edmund

If this has nothing to do with RF getting into the system/wiring then-
I think what you are experiencing is a problem with IRQ sharing in the computer.
Most motherboards don't give you much control of that anymore but,

You can help limit problems by going into the BIOS and disable whatever built-in items in the system that you do not use such as serial ports,parallel port,sound card etc... (turning off the built-in sound card will not effect your USB dongle sound)

At that point if you have a option to reset the PNP system so it re-assigns interrupts on next boot, do that.
 One other thing, Try not to assign/plug-in more than one device per usb hub. In all the USB ports you have, there are two ports to each USB HUB. Use only one per hub.

I will say that sometimes, even when you turn-off built-in devices, they still respond to interupt requests. At that point if you can't work around it replace the motherboard.

Hope that helps a start in the right area. I can't explain more per your motherboard ??

...mike/kb8jnm

-------- Original Message --------
Subject: Re: [App_rpt-users] toggling power on USB buss
From: Geoff Edmonson <ars.w5omr@gmail.com>
Date: Thu, March 27, 2014 2:54 pm
To: kk6ecm <kk6ecm@gmail.com>
Cc: app_rpt-users@ohnosec.org

Well, it happened again, this morning.
Both URI's on same usb buss, but this time it was the UHF repeater URI that failed. Previously, it was the vhf simplex node that was 'sensitive'.

Shutting down and restarting asstorisk doesn't do it, but
¥> shutdown -r now
does.

~shrug~
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