I hope this assists you, but still, I would advise that you try & make a permalink of the files, & also there is another lengty way, which I follow at the times of **Resume Capability: NO**, *which is something like this*: I go to the temp folder of the currently downloading file, & keep that open all the time. In case anytime, the server gets rejected, then I just copy the completely downloaded files from there & paste them somewhere else temporarily, till the time the resume is not started, or the new link is not started.
Then before, I start the new link, IDM, which starts to autodownload as soon as it gets the link in the start download link, I go to the current (herein the new) temp folder & paste the completely downloaded files there to get the download % higher.
**N.B.**: The lenghty version is for those who like experimenting with things & not getting annoyed if it does not work, as there is no guarantee of the steps to work & there are flaws everywhere.
Hope, this assits. :)