If a switch is not powering on or behaving inconsistently, first check: �� Power Supply: Ensure the switch is plugged into a working power source. Try a different power cable or power adapter (if applicable). If using Power over Ethernet (PoE), verify the PoE injector or power. The switch performs a random self-reboot several time a day. Any idea? 01-24-2023 07:50 AM Hi, Most likely, you are encountering a bug in the OS you are running. If the switch is under a service contract, open a ticket with Cisco and they advise what version to upgrade. Today my PC has been turning on for a few seconds before turning itself off. Sometimes it would show up the BIOS screen before turning off, but most of the. My initial trouble shooting started by switching off blades at a time to see if the usage went down. the last blade was the culprit. Unfortunately, it's the blade that connects the other buildings on this site to the network. I'm sure I removed the correct VLANs. Whether using a managed or unmanaged switch, diagnosing and fixing switch failures requires a structured approach. We had one or two of these outages one or two days out of the week.
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