@Jimbo.Automates had suggested the fix offline but took me a while to find it. I had another program that was fighting me that i was not seeing. Thanks
This is really meant to possibly help others - I recently spent several weeks trying to chase down an "Already Subscribed" error when I was trying to login to my ISY. I also was having sporadic MobiLinc issues with connect timeouts etc. I had recently added Home Assistant and Polisy so I was thinking it might be related to crossing a threshold of the 10 connections allowed into the ISY.. It turns out it was completely unrelated! In checking the logs I discovered that I was getting a bunch of "[FileOpen ] Open failed for [/CONF..." errors. My system was generally working ok with only an occasional glitch. I'm guessing the file read issues were causing connections to become phantom thus using up all the connections. Regardless, I reseated the SD card and all has been fine since! I am going to replace the card in case it is going bad. So Lesson learned: even if you think it is unrelated, always check the logs for errors.. may save yourself allot of trouble! Hope this helps someone!