How to trust mapped drive

Hi,

I am running a network with windows 10 machines.

All data is saved on a Buffalo Tech NAS Drive, which is mapped to a drive letter, S, R, & M, on all machines.

I have not been able to designate the NAS Drive letters as trusted drives for EXCEL and Word.

Now that EXCEL blocks macros it is causing some issues with my spread sheets.

Any suggestions on how I can set the NAS as trusted source?