WS-8-150AC - Keeps locking up?

[sbyrd]

I have a WS-8-150-AC that I have had deployed for years with no issues. Board is Rev F with MAC EC13B2D10C48. Not sure when it was installed or how old the switch is.

Anyway what happened is at 1:26pm today I got an alert from the tower router that the interface to the WS-8 went down. It was not flapping and showed no errors. I then tried rebooting the switch by powering off the outlet for the switch on our smart power strip at the tower. Switch came back fine.

Then at 2:15pm it happened again. Again like before a remote power cycle of the power outlet fixed it.

As I do not know why this started happening I have replaced the switch with a new one and will see if the issue continues or not. In the meantime what could be the cause of something like this?

Switch is a very simple setup with no STP or LAG. It is just used as a port expander and POE for APs on the tower. It is using all 8 ports. 1 port is the uplink with no POE. 6 Ports are 24V standard PoE for Airmax APs. 1 is 48V standard POE for an WaveAP-Micro.

I have all ports Isolated except the uplink port and I have a 4 Vlans on the switch to group APs.

When looking at the GUI the switch would use around 50-60 Watts of power with maybe some spikes a 10% higher or lower.

[sbyrd]

Issue did not follow the replacement switch. I have had the switch on the bench connected to 7 PoE devices with the same configuration as it had on the tower and no lockups. Again as asked above what tests do I need to run to confirm if the switch is bad or not? What could have caused the lockups?

[sirhc]

That unit was manufactured in 2016.

It is possible the power supply is failing??????

[sbyrd]

Not sure. I had it on the bench with all POE ports active and connected to devices. Not the exact same load but it was doing around 30-50W and after several days it was fine.

As the issue happened to a remote site, I was never able to see what the switch was doing first hand as I had to power cycle it remotely so I could get my customers back online.

[sirhc]

Not sure. I had it on the bench with all POE ports active and connected to devices. Not the exact same load but it was doing around 30-50W and after several days it was fine.

As the issue happened to a remote site, I was never able to see what the switch was doing first hand as I had to power cycle it remotely so I could get my customers back online.

Try running it on the bench with no poe load over night