Windows 10 Phone and PC SMS messaging - PC SMS Messaging suddenly stopped working

tconway

Honorable
Oct 17, 2013
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10,510
With Windows 10 I was happy to see that my SMS Windows Phone (Lumia 735 Verizon) messages began showing up on my PC.  Great!  Couple days ago I tried sending SMS Message from my PC, and it worked!  Even better!  Then today, the send button on the message is disabled. 

Here is what I do.  I open "Messaging" on my PC, see my normal list of messages just as it is on my Phone (though about 2 weeks old) and I can start a new SMS message by pressing the + sign, all on my PC, but the Send button is stubbornly disabled.  Not great. 

Does anyone know what's wrong? 

My PC Windows version is 10.0.10586.164 and I have the most recent Windows Phone 10 update as of 9/18/2016

Appreciate the help.


Tim