Prevent Internet Download Manager (IDM) Stuck or Stops at 99%

It would be very annoying when you're busy waiting  your downoaded finish, suddenly all must stop at the end of the last wait. Yes,,, that is common problem for most users IDM, like me.
It happens for many reasons. Partly because you may use the older version IDM; conflicts between IDM and other applications; because there are Internet accelerators or Video Accelerators that disrupt or interfere in a download process ; mismatch with security software (Protector, Defender, Spyware); problem with the proxy; and possibly other issues.
Of course you can search with Google, and you will find there many ways to overcome them. You will find a variety of ways to be resumed or continue. Of course, with a little patience and want to do it.
But for me, it's better to prevent than cure.
From the many ways, the following is one way that I found to prevent the IDM stuck / jammed / stop on the status of 99%.Open the IDM windows, then choose "Downloads" tab.

 
Next, choose the "Connection" tab.

Change the "Default max. conn. number"value with "1".

Hit "OK".
This method is more suitable for Internet users with slow internet connection, so the use of multiple split Downloder not very affected.

Prevent Internet Download Manager (IDM) Stuck/Stops at 99% 99% 99.9% 99.99% 99.98% 99.97% 99,9% 99,99% 99,98% 99,97%.