I do stream via NFS using Kodi. I had the same issue when I mounted the share using fstab.
Here are the result of what you asked : http://paste.osmc.io/xuhijatahe.avrasm
And a fresh grab-logs : http://paste.osmc.io/jabijofedu
I’ll set storage to persistent and keep you updated since systemctl status connman -l gave no log output.