Armory - Node Offline FIXED - SEE HOW IF YOU ARE A NEWBIE LIKE ME. IT MAY HELP!

[Frightened]

Reluctant to do anything rash, but I suspect this will be an easy fix.  Will "Rescan Databases" in the Help Menu fix this?  I'm a bit worried I may kick off a process that takes several to complete.  Any info will be very appreciated.  Thanks for the previous help too.  

EDIT:  My node is now online.  My dashboard says online.  On the bottom right of the screen written in green, says "connected (494270 blocks)". It should be 498378.  Bitcoin core is running.  The box is ticked for the "let Armory run Bitcoin Core/bitcoind in the background"

[Frightened]

I have reset armory and it changed to 494271 Blocks and online.  I have Rescanned Databases and Rebuild and Rescan databases.  I'm at a loss as to what is causing this.

[Frightened]

Another EDIT!  My bitcoin core v0.15.1 is running properly and has the correct number of blocks "blockchain" and then "current number of blocks" = 498394. 

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SOLUTION!

Re installed Bitcoin Core v0.15.1.  Opened it and checked the debug.  Left it running and restarted armory after selecting Rebuild and Rescan Databases.  It worked and took a bit longer to load.  Hope this helps a fellow newb someday.