The file "" could not be opened. Either the host is unavailable, or the file is not available on that host.

[shencearn]

I'm getting this more and more intermittently. I can open the remote file from other machines just fine. Sometimes it works. Sometimes it doesn't. Has been happening since we went from FMP15/FMS15 to FMP17/FMS17. Off and on but more on lately. 

Rebooting has sometimes solved it in the past. Isn't today. I'm having to use different machines because it won't work at all today.