Why do I receive an error message
from time to time, "The user does not have enough privileges to open COM4"?
Windows 7 x64, CGMiner 4.3.5 by
dmaxl.
It can mine again after Win 7 restart. I tried to start CGwatcher as Administrator, then to start cgminer itself as Administrator, without CGWatcher. The issue can not be fixed without OS reboot...