Hi there. 
I'm trying for some time with various monitoring tools, such as CryptoGlance, to observe all my KNC-Jupter. 
But it does not work. 
In Jupiter I have the following cgconfig: 
------------------------------------------ 
   "api-list": true, 
   "api-mcast": true, 
   "api-mcast-port": "4028", 
   "api-port": "4028", 
   "expiry": "120", 
   "failover-only": true, 
   "log", "5", 
   "no-pool-disable": true, 
   "queue": "1", 
   "scan-time": "60", 
   "shares": "0", 
   "kernel-path": "/ usr bin" 
   "api-allow": "W: 127.0.0.1, W: 192.168.90.0/24" 
------------------------------------------- 
Has anyone ever done or knows of the error?
Or someone knows another monitoring tool that works with the KNC-Jupiters? 
greeting 
Tinu
Hey Tinu, thanks for trying out cryptoGlance! We only wish we had the hardware like yours, so it's been tough for us to account for every device. 
Anyway, this may be a minor thing, but you can try to remove the space in the 'api-allow' field, so that it looks like this:
"api-allow": "W:127.0.0.1,W:192.168.90.0/24"
I kind of doubt that will fix it, but maybe it would if you cannot get any monitoring tool to work. Also, I'm not sure which mining app you're using, but I have heard that 
bfgminer does not like the 
api-mcast parameters, so you may try removing them as well.
If possible, please provide us with more detail as to what's happening, but from your post, I can gather that you attempt to add the rig, but then nothing happens. OR, does it show in the list, and is grey?
Thanks again!