OLD 54400 fail

We had a fair old site unused ptp 54400 on our storage. We gave to it some tests and after that we push for 20 secs the recovery button on PIDU plus unit for reset it. Sadly ,we never managed to reoperate it from then.At any  restart of the unit the ethernet flashes for ten times, and regarding the manual this mean that the unit is healthy but it doest respond on any ping on,2 and,11,12. Should i try everything else ?

Do you have an old user guide? I'd try what the user guide suggests you try.

Let us know if you need a copy and I'll go search for one.


I found a copy of manual on internet. If you have a most valid one please share to us the link.

I found the latest official copy and sent you a link with the URL.

I hope this helps!


I read the manual (its the same  like one that i found on the net) but it's not helpful in our case.. Could you suggest to us any other action (like reflash the image?)

I think it would be quite difficult to "reflash the image" given that the unit does not appear to be responding.

I think you should contact customer support to see if there's anything further we can do to help: https://www.cambiumnetworks.com/support/contact-support/

I'm sorry I couldn't be more helpful!