Is a service responsible for reconnecting mapped drives on boot?

If so, which service is used for this?

I have a scenario where, if there is a service responsible for this, I would like to create dependency where said service only starts after iphlpsvc is already started, in a bid to fix a nagging issue I'm having.

Some good discussion in the following thread that may help give you an idea as to how to solve your problem.

How to delay mounting network drives