TachoSync Company Card Authenticator: Difference between revisions
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|[[File:Hyper-card-rack-120-img5.png|thumb|left|x300px|DIP switches, lower right (© Lisle, 2025)]] | |[[File:Hyper-card-rack-120-img5.png|thumb|left|x300px|DIP switches, lower right (© Lisle, 2025)]] | ||
|[[File:Hyper-card-rack-120-img4.png|thumb|left|x300px|Multiple racks connected (© Lisle, 2025)]] | |[[File:Hyper-card-rack-120-img4.png|thumb|left|x300px|Multiple racks connected (© Lisle, 2025)]] | ||
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===<u>Troubleshooting</u>=== | |||
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!Cards become unresponsive after inactivity | |||
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'''<u>Symptoms</u>''' | |||
* CCA shows as ''connected''. | |||
* Company cards become unresponsive or show communication errors after a period of inactivity. | |||
* Restarting the '''CCA Windows service''' restores functionality temporarily. | |||
'''<u>Cause</u>''' | |||
* Windows '''USB selective suspend''' may put idle USB ports into a low power state. | |||
* USB smart card readers do not always recover correctly when the port resumes. | |||
* As a result, CCA loses communication with the reader. | |||
'''<u>Workarounds</u>''' <br> | |||
'''<big>Option A</big> — Disable USB selective suspend (recommended)''' | |||
* Control Panel → Hardware and Sound → Power Options | |||
* Change plan settings → Change advanced power settings | |||
* USB settings → USB selective suspend setting → '''Disabled'''. | |||
* Apply for Plugged in (and On battery, if applicable). | |||
'''<big>Option B</big> — Disable USB power management per device''' | |||
* Open '''Device Manager'''. | |||
* Expand '''Universal Serial Bus controllers'''. | |||
* For each '''USB Root Hub''': | |||
** Right click → Properties → Power Management. | |||
** Uncheck '''Allow''' the computer to turn off this device to save power. | |||
'''Notes:'''<br> | |||
* This is a '''Windows power management behavior''', not a CCA defect. | |||
* The issue is more likely to occur on non‑dedicated PCs with active power‑saving settings. | |||
* For dedicated CCA hosts, '''Option A''' is usually the simplest solution. | |||
''For more information'':<br> | |||
[https://learn.microsoft.com/en-us/windows-hardware/drivers/usbcon/usb-selective-suspend Microsoft documentation]|[https://www.pugetsystems.com/support/guides/how-to-disable-usb-selective-suspend-1190/ Puget Systems guide]|[https://www.ninjaone.com/blog/configure-usb-selective-suspend/ NinjaOne guide] | |||
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