If the room and board was initially paid by a grant, then you wouldn’t get a refund unless it is a state grant that can be refunded to the student I would think.
There are internet providers right now that offer free internet to students in need.
This is the list my son’s school gave their students.
If your son can’t petition to live on campus, could he rent an Air BNB room by the month? Might that be cheaper than an apartment lease which is usually long term and requires a security deposit?