Messages on my mac will not send or receive messages

Hi,

What are the error messages from the app at that point ?

7:45 pm Tuesday; January 28, 2014

 iMac 2.5Ghz 5i 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

Hi I just tried what you suggested in this post AND i restarted my machine. Now i have a message in the text window that says iMessage (Inactive) and it will not allow me to log in. Any suggestions? I have no idea how to fix this issue of Messages not running in my Mac.

Thanks

Lisa

Hi,

You have joined a thread that is nearly 3 years old from when it was started.

It is in Mountain Lion (OS X 10.8.x) which would have Messages 7.x.x. as a version.

Are you using Mountain Lion ?

If the Main Messages window has iMessages listed as the account but says it is Inactive are you trying to make it active in the Preferences > Accounts > iMessages Account ?

This should be via the "Enable this Account" box.

If you are using Mountain Lion then go to the Apple Icon Menu top left of the Menu Bar.

Select About this Mac.

In the panel that appears click twice on the line that shows you the OS X version.

This will change to the Build Number first click and when you click that it will show you the Serial Number.

Is the Serial Number present ? (You needed it after the OS X 10.8.2 update).

If none of this applies what are you using ?

8:58 pm Tuesday; February 23, 2016