Hey all, I have a friend who runs a small non-profit and they're having problems with their SG300-52P. Unfortunately, their IT company is a single guy and he's away so they don't have anyone to help them in person until next week.
There were storms last week and they lost power long enough for the UPS to die. After power came back they powered on the UPS. Since then the switch hasn't worked. It powers on and lights are on on the ports but it won't provide PoE, pass traffic, and the management IP is inaccessible. Bypassing the switch and going straight to the router works fine.
They can't find the serial cable that came with the switch so I had them get a USB to serial adapter: https://www.amazon.com/dp/B0759HSLP1 and gender changer: https://www.amazon.com/dp/B00005111M. The docs seem to indicate a null modem isn't required, so we didn't get one. Attempts to connect to the console were unsuccessful. Tried multiple baud rates and don't get anything back.
Has anyone seen this happen with a Cisco switch before? Any suggestions on what we could try? Thinking about having them get a straight through serial cable as well as a null modem just to try both, but everything takes a day to get so trying to cover all bases.
Thanks in advance!
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