[@casiepa Moderator 10 years, 8 months ago]

Hi,
Just some ideas:
Do you have Jetpack Protect ?
Do you have any security plugins (like all-in-one or other) ? Then please deactivate to test.
Did you change ‘Settings > Forums > Throttle posting every’ to something else then ’10’ ? As a test, if you put it to 0 and save ?
Do you use any membership plugin ?
Is the time of your server correct (Check the time when you post something) ?

Pascal.