I bought the ePMP3000 the day it came out and I love it. What I don’t love is these radios in ptp mode - they simply aren’t reliable, still. I thought 4.7 had finally fixed it as I saw some long uptimes, and this was my main gripe, but now i’m seeing this MCS fault, where one direction drops to MCS DS0 or lower and is stuck there until a reboot.
My wisp is small, with currently 250 cambium radios, but I know them like the back of my hand, I feel like I know them better than many. And I can tell you, they drop, self reboot and have a modulation bug.
This post was going to be about how 4.7 fixed eptp mode, so I checked in on two random F300-25 links that service a handful of customers. One had an uptime of 2 days and the other had the modulation bug and UL MCS was stuck at 0. I rebooted the link and it went back to normal.
This is the story of cambium ptp for me - ‘reboot and everything goes back to normal’. It is very frustrating as there’s no acceptable reason for this to still be happening. I put my first F300 link in 4 years ago, and it would self reboot every week or less. Now 4 years later it’s still doing the same thing.
I now set my switches to bounce power every week, and might change that to twice every week. But this really is not good enough. I have a few UBNT links too and of course they sit there working forever, with no drops or bugs ever. So we know it’s possible. But I don’t want UBNT links, I want cambium links. My Siklu link does the same - it works forever with no faults ever.
I do love cambium because they gave us the epm3000, and the F300 series are stable when connected to them, it’s a beautiful thing. But the ptp550, F300 and F400 series in ptp mode have never worked properly and still don’t.
I have put other radios side-by-side next to these links to prove it’s not some weird interference, as that’s always the go-to cause, and they work fine.
Come on Cambium, please sort these issues out for us, we have waited long enough. We will support you into the future but you need to support us too.