Your business router connects networks and may also provide firewall, VPN and Wi-Fi functions. Securing it means choosing suitable equipment, configuring it for the business and assigning someone to maintain it. A new box alone does not accomplish all three.
Find out what you have and who controls it
Record the model, software version, support status, administrator account owner and whether the equipment belongs to your carrier, landlord or business. Do not remove a carrier gateway without checking dependencies such as voice services, static addressing and remote support.
Microsoft’s April 2026 investigation documented compromised small-office routers being used to change DNS settings. That example makes configuration review relevant alongside checking whether the internet is online. Read the primary investigation.
Review the paths into the network
- Identify management interfaces accessible from outside the office and disable unnecessary exposure.
- Use individual administrator identities where supported, appropriate multifactor authentication and a controlled recovery process.
- Document VPN users, third-party connections and inbound forwarding rules, including their purpose and owner.
- Review DNS configuration, time settings and logs that will help explain later changes.
Separate devices according to their work
Guest Wi-Fi should not automatically provide access to accounting computers. Cameras, building controls and payment systems may need different boundaries. A VLAN label is not enough: routing and firewall rules determine which connections are possible. Test legitimate printing, discovery and management after making changes.
Plan an update that you can recover from
Check the manufacturer’s supported upgrade path, save a usable configuration backup and record how to regain access if remote management fails. Schedule a maintenance window with the business and verify the internet, phones, VPN and key applications afterward. Replace equipment when its support or capabilities no longer fit the requirements, rather than following an arbitrary age rule.
Ask what ongoing management includes
A network agreement should say who reviews alerts, approves changes, maintains documentation and handles an outage with the carrier. Agree whether hardware, licenses, spare equipment, site visits and after-hours work are included or separately quoted.
IT MGMT’s network infrastructure service covers assessment and scoped improvements. For an owner working from home, our Home Wi-Fi and network service addresses household layout and device needs separately.
