Tuesday, April 3, 2018

Cisco 3560 Suddenly Not Booting

Trying to learn some enterprise networking skills, so I recently bought a Cisco 3560G for my homelab, initial installation went without a hitch using stock settings on everything. (I planned on adjusting and practicing with things later) This install was 1 week ago, and everything was fine until this morning.

Suddenly this morning all devices connected showed no internet access available. Still showed network connectivity, just no internet.

After basic troubleshooting showed no progress(plug/unplug ethernet and flushdns), I decided to reboot the switch from web browser. The reboot seemed to hang, I left it for about a half an hour. After the half an hour, I unplugged the switch and plugged it back in.

Now the switch will not boot at all. The LEDs flash initially, all 5 lights at once, then the SYST light blinks, all go dark with the fan revving at max speed. I have tried booting while holding the MODE button as well, this didn't seem to change anything. No connected devices will even show network connectivity now. Router is showing the switch offline.

Any advice at all is welcome, I'll keep scouring other forums in the meantime.



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