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| {| class="mw-collapsible"
| | Teltonika Telematics |
| !Cards become unresponsive after inactivity
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| '''<u>Symptoms</u>'''
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| * CCA shows as ''connected''.
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| * Company cards become unresponsive or show communication errors after a period of inactivity.
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| * Restarting the '''CCA Windows service''' restores functionality temporarily.
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| '''<u>Cause</u>'''
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| * Windows '''USB selective suspend''' may put idle USB ports into a low power state.
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| * USB smart card readers do not always recover correctly when the port resumes.
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| * As a result, CCA loses communication with the reader.
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| '''<u>Workarounds</u>''' <br>
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| '''<big>Option A</big> — Disable USB selective suspend (recommended)'''
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| * Control Panel → Hardware and Sound → Power Options
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| * Change plan settings → Change advanced power settings
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| * USB settings → USB selective suspend setting → '''Disabled'''.
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| * Apply for Plugged in (and On battery, if applicable).
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| '''<big>Option B</big> — Disable USB power management per device'''
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| * Open '''Device Manager'''.
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| * Expand '''Universal Serial Bus controllers'''.
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| * For each '''USB Root Hub''':
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| ** Right click → Properties → Power Management.
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| ** Uncheck '''Allow''' the computer to turn off this device to save power.
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| '''Notes:'''<br>
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| * This is a '''Windows power management behavior''', not a CCA defect.
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| * The issue is more likely to occur on non‑dedicated PCs with active power‑saving settings.
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| * For dedicated CCA hosts, '''Option A''' is usually the simplest solution.
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| ''For more information'':<br>
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| [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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| |}
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