[time-nuts] USB problems and solutions - Some what Off Topic

[Vlad]

If its really number of USB devices, directly connected to the PC, then 
it could be issue with overload of 5V bus on USB hub. It has certain 
limitation.
As a workaround, you could try to use external USB hub with its own PSU.

-- 
WBW,

V.P.

On 2015-05-29 15:17, Cash Olsen wrote:
> I have been plagued with hard crashes of the computer when plugging in 
> and
> unplugging USB devices. I have generally determined that some of the 
> USB to
> serial devices are the worst offenders. I am also suspicious of some of 
> the
> hubs. I wander if even the operating system is partly to blame.
> 
> I'm using Windows Vista, and have several different USB to serial 
> adapters.
> Most are Silicon Labs and Prolific. I thought I had the problem 
> resolved
> with Prolific by over-riding the driver and installing an earlier 
> version
> but Windows may have updated the driver, that seems to be a common 
> problem.
> 
> I'm coming to time-nuts because I remember that at least one member had 
> a
> very large number of adapters on one computer, so I'm hoping to find 
> some
> help. I don't generally seem to have trouble with other USB devices, 
> just
> the serial adapters.
> 
> One further issue, the COM ports are marked in use from 3 to 50+ and 
> I'm
> only using at any one time 3 or 4. Can I clean up the assignments and 
> can I
> make the assignments static after connect and reconnect or restarting 
> the
> computer?