External resources — network and Wi-Fi help

25 sites and tools for testing, learning, and diagnosing network issues.

21 views

May 29, 2026

Setting up home Wi-Fi for work-from-home

What to check on your home network when working remotely.

17 views

May 29, 2026

2.4 GHz vs 5 GHz vs 6 GHz — which Wi-Fi band to use

Quick guide to picking the right band for your situation.

16 views

May 29, 2026

When an app says 'connection refused' — ports and firewalls

Firewall blocking an app, or a service not listening — how to tell which.

16 views

May 29, 2026

Remote Desktop (RDP) won't connect

Common causes when RDP to a server or another workstation fails.

15 views

May 29, 2026

When sites don't load but everything else works (DNS)

A specific website or service refuses to load. Usually DNS.

15 views

May 29, 2026

Using your phone as a mobile hotspot

When office Wi-Fi is down — using your phone's data as a fallback.

16 views

May 29, 2026

How to find your IP address

Local IP, public IP, IPv4, IPv6 — what each is and how to look them up.

16 views

May 29, 2026

Wi-Fi sticks to a weak signal when I move

Laptops don't always roam cleanly. Here's how to force a switch.

16 views

May 29, 2026

How to check your internet speed properly

A real speed test takes 30 seconds and tells you exactly what's slow.

18 views

May 29, 2026

Teams meeting quality issues

Choppy audio, frozen video, can't hear others — diagnose in order.

16 views

May 29, 2026

Connecting to a new network printer

Adding a network printer for the first time, or after a laptop reset.

12 views

May 29, 2026

Wired Ethernet not working

Plugged into the wall, no connection. Cable, port, or driver — work through each.

15 views

May 29, 2026

Wi-Fi is slow even though connected

Fast signal but slow speed — usually band, congestion, or driver.

16 views

May 29, 2026

VPN won't connect

Cisco AnyConnect, GlobalProtect, or other VPN clients failing to establish.

16 views

May 29, 2026

Wi-Fi is connected but no internet

The "limited connectivity" puzzle. Usually DNS, DHCP, or a captive portal.

17 views

May 29, 2026

Wi-Fi keeps dropping or disconnecting

Random Wi-Fi drops are usually a roaming, driver, or interference issue.

18 views

May 29, 2026