Q2. My network drives were working –  but after taking the laptop home or another location,  I’ve brought it back to work and there’s a  red X on the network drive?  How do I get the drives to reconnect?
Double click on the network drives – and they should reconnect.  Worst case scenario is that it may ask you for your username and password again.  Remember to use   domain\username for the username field.

Q3.  I set up my printers – but now they have a red X on them…  how do I get them reconnected?
Reconnect to \\ps-3\   find the printers and right click and select CONNECT.