Windows 7: Files wont finish downloading

I have been using either jdownloader or IDM for a very long time. I recently removed idm and went with jdownloader. Suddenly today, i am having a problem where my files wont finish downloaded. They download all the way and then stop at either "connecting" or "rebuilding". i wait for a while (usually completes after 2 seconds), but nothing happens. I reinstalled idm to see if it was just an issue with jdownloader, but both are giving me problems. I reset my internet connection, ran malwarebytes and my antivirus, nothing detected. Can anyone help?

in this case remove both programs, and use CCleaner to clean up the mess they might made, then reinstall them, if still same problem happens try using a different program, as for me I use Free Download Maneger (FDM).

thanks for the suggestion. i tried this, but the issue is still there? i added both apps to be allowed in my firewall. i was told this might be an issue. Next i will try to disable my router, connect directly to my modem and see if the problem still arises. if it doesnt, i will reconfigure my router.

I don't think it's a router issue cuz if so it will hold off all internet connections, but still resetting your router settings wont make any harm. and if it didn't work try resetting the program settings, maybe those two programs you use keep their settings saved on a separate file incase user uninstalled them and reinstalled them later.
Also for the router consider updating it's Firmware cuz I used to have the internet connection disconnected every 5 mints, I updated it's FW a week ago and until now no issues found
If still no hope don't hesitate in asking again

Can you ignore both download managers and use the inbuilt managers of either FF or IE and let us know if you are able to complete the download?

ya that would be a good test to know where the problem starts