Lightroom Showing Folders Offline When Using Synology NAS

[IanBarber]

I have my LR Catalog on the internal SSD drive and store all my Photos on a Synology NAS Network Drive.

When I restart Lightroom, I always get the "Missing" Folders and I have to right click and locate the missing folders.

I am usin MAC OSX and Latest release of Lightroom

[johnrellis]

Others have reported that when their NAS is configured to "sleep" after periods of not being used, when they start LR, the NAS takes a while waking up, but by the time it does, LR has already decided the NAS is offline and thus "missing".  

Before starting LR, used Finder to navigate among a few folders on the NAS to force it to wake up. Then start LR.