Networking — The 10-point network health check you can do in an afternoon
Photo: Solijon Solayev, CC BY-SA 4.0
Networking

The 10-point network health check you can do in an afternoon

When the internet drops or the Wi-Fi slows down, work stops. You don't need a networking background to catch most of the common problems, just an afternoon and this list.

Know what's on your network

  1. List every device: computers, printers, VOIP phones, smart devices. Confirm what each one is and where it sits.
  2. Change default passwords: routers, switches and cameras often ship with factory logins that are public knowledge. Change them.
  3. Check who has admin access: admin access lets someone change settings, reset passwords, or take down part of the network. Only the people who need it should have it.

Check the physical hardware

  1. Update firmware: the software built into routers, switches and access points. Manufacturers patch security holes through it; check the versions and note what's currently running.
  2. Inspect the cables: replace anything frayed, kinked or damaged.
  3. Label both ends of every cable and every switch port. It saves real time the next time something drops.

Check Wi-Fi and connectivity

  1. Walk the office and check for dead zones where the signal drops.
  2. Separate guest Wi-Fi from your internal network, so visitors can't reach internal files or hardware.
  3. Check whether you have a backup internet connection. If your main provider goes down, a second connection keeps things like phones running.

Check the settings that quietly cause problems

  1. Check DNS, DHCP and the system clock are consistent across the network and written down somewhere central.

Turn what you found into an action plan

Don't leave the findings as a loose list. For every issue: what it is, when you found it, and who's fixing it.

Afternoon audit checklist:

Keep a simple log of these ten checks so the network stays reliable, instead of only getting attention after something breaks.

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