My KVM is showing "No Signal". I am using a AOC-SIM1U+ add-on card for IPMI. The web page login works and I can read the sensors, etc, but KVM isn't working. It was working last week when I was testing it, but today there is no signal.
Please clear your Java cache. In Windows, it's under Control Panel > Java. Delete the temporary files, including applets and applet data. After that, if you are still having trouble with the KVM, please clear your browser's cache too.