After rolling out Citrix Receiver Version 4 on some new IBM machines ( M Series ) it down graded the milli amp value of the generica USB hub from the standard 500mA to 100mA
There is a registry value to force this back up to 100mA which is located in
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\Hardware ID of USB Hub\Paramters
( Find the Hardware ID of the USB hub in hardware ID’s )
“ForcePortPower” Dword : 500
Unplug and replug in device
However this did not work. The issue seems to be with the CitrixReciever.exe installing USB drivers causing the issue on some machine which are not needed in XenApp ( only Xen Desktop )
To install CitrixReciever without the USB Drivers you can run with the following command :
CitrixReceiver.exe /includeSSON ADDLOCAL=ICA_Client,ReceiverInside,SSON,AM,SELFSERVICE,DesktopViewer,Flash
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