192.168.100.1 Cable Modem Status

192.168.100.1 is the diagnostic page for cable modems (Arris, Motorola, NETGEAR). This shows signal levels and connection status — not Wi-Fi settings. For Wi-Fi, go to 192.168.1.1 instead.

View modem diagnostics: http://192.168.100.1
For Wi-Fi settings: 192.168.1.1 | 192.168.0.1
Need Wi-Fi settings? This is your modem, not router. Go to 192.168.1.1 or 192.168.0.1

Modem vs Router

Modem (192.168.100.1)Router (192.168.1.1)
Connects to ISP via coaxCreates your Wi-Fi
Signal diagnosticsWi-Fi password
No Wi-Fi settingsParental controls

Supported Modems

  • Arris — SB6183, SB8200
  • Motorola — MB7621, MB8600
  • NETGEAR — CM500, CM1000

What You Can See

  • Signal Levels — Downstream/upstream power
  • SNR — Signal quality
  • Connection Status — Online/offline
  • Event Logs — Error messages

How to Access

  1. Connect directly to modem via Ethernet
  2. Go to 192.168.100.1
  3. Usually no login required