Are you sure you want to do this? Please try again.

Sometimes, WordPress shows an error like:

Are you sure you want to do this?

Please try again.

This if often caused by memory limitations (script runs out of memory due to multiple plugins and complex theme installed on site).

To fix this memory limits need to be increased from the default of 40M. Usually 128M fixes most setups, but 256M can be used if more is required for certain operations.  This can be done from wp-config.php :

define( 'WP_MEMORY_LIMIT', '128M' );

A plugin like WP Config File Editor can be used.

That doesn’t work? Error can also be caused by bad plugin and/or theme code that generates memory usage loops.
Disabling plugins and switching to a standard theme will fix the issue in this case. Then plugins/theme can be reactivated one by one to identify which one/combination is causing the issue.

 

ADSL Connection Video Broadcasting

Problem: When using Live Streaming solutions, live streams from some broadcasters have big frame loss, huge latency and sometimes don’t show at all.

Many home user internet connections are ADSL (Asymmetric Digital Subscriber Line), meaning they have low upload bitrate compared to download: In ADSL, Bandwidth and bitrate are said to be asymmetric, meaning greater toward the customer premises (downstream) than the reverse (upstream). Providers usually market ADSL as a service for consumers for Internet access for primarily downloading content from the Internet, but not serving content accessed by others.

This causes issues when trying to upload content like broadcasting live video. For live broadcasts, streaming bitrate is limited by broadcaster’s upload bitrate. Broadcasters with such connections will encounter severe issues (frame loss, long interruptions, big latency) if they try to live stream a stream with bitrate very close or greater than connection limit.

How to determine your connection type and limits (for adjusting streaming settings)? Measure Connection Speed
Do a speed test from broadcasting location to a location near streaming server (rtmp) using SpeedTest.net .
On new version use Change Server and search for a server in Montreal, in example.
In legacy version if latest does not work, drag and zoom to a server in North America and select it to test for our demos .
Check upload bitrate. Divide by 8 to obtain transfer rate in bytes/second as bitrate is often displayed in bits/second.
Then adjust streaming settings so video, sound and interactions fit in upload bitrate (leave 10-25% margins).

If your site targets users from certain areas, browse some stats and identify common upload bitrate to adjust default streaming settings.

Also see:
Recommended h264 Video Bitrate Based on Resolution
VideoWhisper Web Application Client Requirements