Update via LAN on PC

Hi all, I’m newbie to Avast program.

I wonder if Avast can be updated via LAN (update from PC),
but not from Internet ?

This needs to be done due to not all the PCs have the Internet
connection. Thus, with one unit of PC (eg. PC-A) has the latest virus
database on it, the rest of the PCs update from PC-A.

Can that situation be done ? Thanks…

You can download the latest vps manually and use that to update Avast. But if you are on a network, why not use the network edition or the sbs?