Why won't my Hotmail account sync emails any more on my Lumiia 521?

[WPCentral Question]

why wont my hotmail account sync emails anymoreon my Lumiia 521

My hotmail account must be up-to-date... password wise
phone is functioning,but my hot mail email is not syncing....Help
..

Lumia521

 

[gpobernardo]

Re: why wont my hotmail account sync emails anymoreon my Lumiia 521

My hotmail account must be up-to-date... password wise
phone is functioning,but my hot mail email is not syncing....Help
..

Lumia521

May we know what error prompt, if any, are you encountering?

Whenever I encounter syncing problems, I just quickly turn Airplane mode on and off, effectively resetting all data connections (either both 3G (4G) and WiFi or either 3G (4G) or WiFi). In a few moments, all my email accounts (and other apps) begin syncing successfully.