开云体育

Hi,

I have had 2 DM-NVX-35X devices that will no longer operate with UPOE power.? ?I have plugged another DM-NVX-35X device into the same Ethernet and it functions fine.? ?If I use the AC Adapter with either of the failed DM-NVX-35X devices and they work fine.? ?I am using the latest firmware on both of the DM-NVX-35X devices that have failed.

Anyone else experience these types of failures.

I am using? Cisco C9300-48U-E switches

Thx
Bryan

Hi Bryan,

Have you tried using either a simple PoE injector or basic PoE switch with the problem NVX units? ?2 failing seems unlikely. ? Whilst we dont use NVX we use a number of Encoders on networks and we have experienced lots of problems with Cisco switches, if they are not set up correctly then the port blocking can kick in and stop devices having network access or poe by automatically blocking them by MAC address. ? This has typically happened if the rtsp stream is flooding the network or we have tried the device on different switch ports. ?The switch responds by thinking its a hack and blocks the device and kills PoE etc etc.

i would firstly try.

1. the devices in the PoE injector / simple PoE switch
2. reboot the cisco switch if this does not affect the rest of your network.
3. check the switch logs for blocked devices.
4. ?If you can downgrade the firmware on the NVX after that its always an option to test

rgds steve?

We had a whole group of 350/351s fail in this way. POE power failed while the power pack worked fine. Crestron may know about this as they replaced them on several occasions without question.