Error "-50 C2DM notification failed" when trying to send a task to an Android device

  • Article ID: 117748
  • Rating:
  • 5 customers rated this article 1.6 out of 6
  • Updated: 06 Nov 2015


Trying to send out a task to an Android device fails with the error "-50 C2DM notification failed"

First seen in
Sophos Mobile Control 3.5

Operating systems


This error occurs if the connection from the Sophos Mobile Control server to Google's GCM servers is not possible

What To Do

Make sure your Sophos Mobile Control server is able to connect to the Google servers via the URL
Check your firewall if they are blocking access to this URL.
If your Android devices are connected to a Wireless LAN the following ports must be opened to enable GCM traffic: 5228, 5229 and 5230.

If you need more information or guidance, then please contact technical support.

Rate this article

Very poor Excellent