Recent important fixes have been made relating to this error. To alleviate this problem, please ensure you are using the latest version of Adobe Flash plugin.
This can be downloaded here:
If you use the Maxthon browser you will continue to receive DRM error 3343 as, due to its cloud based architecture the Maxthon browser is not currently supported.
If you are using Safari on Windows and consistently receive DRM error 3343, please use an alternative browser. Windows Safari is no longer officially supported.