Avalanche: Why Avalanche commander freezes when I run the test or reserve ports or just open it?

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Avalanche: Why Avalanche commander freezes when I run the test or reserve ports or just open it?
• Make sure you have enough space on your disk • Sufficient RAM available • Update java to latest version • Kill Java process from machine • clear the %temp% directory • reboot the machine If above suggestions don't help: • Save all projects and uninstall the commander and install again