The summary.
DO THESE WHEN SETTING UP ANYTHING
Change the router's administrative password first Apply firmware updates Enable and test guest network isolation Reserve addresses for printers and fixed equipment
THE ISOLATION TEST
Connect to the guest network and try to reach a business device. Many guest networks are not isolated by default.
CABLE ANYTHING FIXED IN PLACE
Retrofitting cabling later costs far more than doing it during a fit-out.
TO IMPROVE WIRELESS, MOVE THE ACCESS POINT FIRST
Central, elevated, away from metal and obstructions. Never in a cupboard or on the floor.
Extend with wired access points, not extenders.
WHAT FAILS MORE OFTEN THAN ANYTHING TECHNICAL
Heat, power and physical damage.
Equipment in an enclosed cupboard overheats, and overheating produces intermittent faults that look like network problems.
RESERVE THE PRINTER'S ADDRESS
A printer whose address changes stops working for everyone.
WHAT TO WRITE DOWN
Equipment, addressing, wireless names, cable runs and provider details — kept somewhere reachable when the network is down.
