I migrated 2 c5 hubs to c8 a couple of days ago. On one hub (almost) everything went through without issues. I have a combination of zwave and zigbee, and no problems at all (except one minor one mentioned below).
On the other hub, one (very old) zwave door sensor just doesn't work at all -- I get nothing from it. It is an old Aeotec (?) sensor, probably 10 years old, but it worked perfectly with the c5. I tried a second identical one I had sitting in a box -- same thing. Pairs fine, and the indicator light on it shows it is detecting contact, but the hub sees nothing. Annoying, but I just ordered a new 700 series sensor from The Smartest House (SZE41), which I expect will solve this problem. Still, this should work, right?
The REAL issue is with the Hue Outdoor motion detectors. I have 4 of them, 2 on each hub. On the "good" hub, one worked from the start. The other I "paired' again (zigbee, so it just detected it was already there), and it has been fine since then, reporting lux, temp, and motion. (I love these sensors, they are the only ones I know of with such great range and speed, but I digress...).
But on the "bad" hub, in addition to losing the zwave door sensor, both the Hue outdoor motion sensors are having issues. One I had to "pair" again once or twice, and it worked for about a day but is now not responding. The other I "paired" again probably about a dozen times before it started working, and it worked for maybe 12 hours. Brand new batteries. BTW -- BOTH these sensors are probably less than 15 feet from the hub. Hub is in a room over the garage, one is IN the garage probably about 8 feet from the hub, the other is on the front of the garage. Both worked reliably with the previous hub.
The Hue are zigbee, but all the other zigbee devices are fine (a couple of plugs and several leak sensors). I didn't have to touch them at all. I did update the firmware on the really problematic Hue this morning, after I paired it again and got it working, but that seems not to have helped as it stopped working again after less than 10 hours.
Can someone from support log into my hub and check this out please? Or are there other suggestions?