Trouble with Kodi & NextPVR

[bigoldboy]

Hello all, not new to this stuff but first post.

1. NextPVR is working fine. I have it installed on an instance of Windows 7 on my QNAP storage device 192.168.0.29. I love it, and it works great. It records to my NAS and I can watch those recordings.
2. I can use my web browser on my Windows 10 machine (http://192.168.0.29:8866/modern/guide.html) and it looks lovely. I can start recordings from here - all works great.
3. I have 2 instances of Kodi, one on my same Windows 10 machine (17.6) and one on my Nvidia Shield (17.6).
4. I cannot connect, either with the pvr addon or the x-new program addon to 192.168.0.29. I am pulling my hair out.
5. Error on bootup of Kodi (Windows Machine) is "PVR Clients: NextPVR PVR Client, Add-on couldn't be loaded. An unknown error has occured. Error in Kodi log is "18:22:52.387 T:11180 ERROR: ADDON: Dll NextPVR PVR Client - Client returned bad status (1) from Create and is not usable".

Any ideas? My gut tells me it is Kodi because NextPVR is running great, but why can I connect via web browser and not with either PVR addon or x-newa addon?

Thanks