Hi,
after years of more-or-less stable performance my IP-Symcon server started failing at night.
Last 2 weeks ca. 5-6 times.
The error I found in log files:
Warning: I/O Instanz ist nicht aktiv in...
In console, FTDI indicates an error, Device is empty and error text says that ‚EL5M377Y‘ is not available.
In a Windows device manager, there’s the following error:
"Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. "
System runs on WHS 2011 server.
I do not understand why the driver gets corrupted „at runtime“, after it was successfully installed and used.
It starts to work again after reboot.
I did not find any solution using google.
Any advice?
Thnks
Marian