Replaced a Niagara R2 UNC with a Jace-645 embedded with R2. LON communications was stable at first but now it is intermittent.
Niagara G3 - AX version 3.6.47 or higher
Niagara R2 version 535
The intermittent LON communications issue was identified and a supporting jar file in R2-535 needs to be upgraded.
Replace the lonworks jar file with this updated version: