The device everything depends on.
WHY THE SUPPLIED ROUTER IS OFTEN INADEQUATE
Provider equipment is built to a price and rarely handles many devices well.
WHAT A BUSINESS ROUTER SHOULD PROVIDE
Stable operation under load Multiple connections with failover Separate networks for staff and guests Quality of service controls Firewall Logging Remote management
WHAT TO CHECK BEFORE BUYING
How many simultaneous connections it handles Whether it supports your connection type Whether firmware updates are still issued
WHY UPDATES MATTER
Routers are attacked, and unpatched ones are compromised.
WHAT TO CONFIGURE FIRST
Change the default administrator password Disable remote administration from the internet, unless needed and secured Apply current firmware
WHY THOSE THREE FIRST
They address the commonest compromises.
WHAT TO SET UP NEXT
A separate guest network A separate network for payment or sensitive systems, if applicable Quality of service prioritising calls
WHAT QUALITY OF SERVICE DOES
Gives priority to traffic that suffers most from delay.
WHAT TO PRIORITISE
Voice and video calls.
WHAT TO DEPRIORITISE
Backups and large transfers.
WHAT TO DOCUMENT
The configuration, and where it is recorded.
WHY
Recovering an undocumented configuration after a failure takes hours.
WHAT TO BACK UP
The router configuration file.
