Activesync no longer working

Activesync no longer working

Activesync on my mail account has stopped working. I have checked it is enabled for my account in the control panel. 

I know my password is correct as it works with IMAP


If I run the Microsoft test for activesync I get the following results:


Testing HTTP Authentication Methods for URL https://msync.zoho.com/Microsoft-Server-ActiveSync/.
  The HTTP authentication test failed.
 
Additional Details
 
A Web exception occurred because an HTTP 404 - NotFound response was received from Unknown.
HTTP Response Headers:
Connection: keep-alive
Allow: GET, HEAD, POST, PUT, DELETE, OPTIONS
Content-Length: 0
Date: Thu, 13 Oct 2016 11:38:05 GMT
Set-Cookie: 09d307c6f8=164356bd8358a1794eb100a699c557b4; Path=/
Server: ZGS
Elapsed Time: 441 ms.


Any ideas?

Thanks