Scanner Software won't install

I have 2 all-in-one units connected via network, to 3 computers running Built 7057 64bit..
Samsung CLX-3175 - The 64bit printer drivers install well. The Scanner drivers and utility won't install.
HP3310 - Same story. The Scanner utility won't install.

I can access the scanners via their IP address and scan on line... but I cannot access the either computer from the scanners themselves.

any ideas?

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