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Router changing my IP?

  • November 15, 2025
  • 2 replies
  • 35 views

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Hi, I’m completely new to networking, so this might be a basic question, but I couldn’t find an answer online.

I currently use Spectrum as my ISP. My setup is: Spectrum Modem → Spectrum Router → Switch → ARRIS Surfboard WC4S Mesh Router. Both the Spectrum router and the Mesh router are creating their own networks.

When I check my IP on the Spectrum router’s Wi-Fi, it shows **76.33.184.xx**, but on the Mesh network, it shows **47.152.20.1xx**. My modem has the same IP as the Spectrum router.

Ideally, I don’t want to use the Spectrum router, but I need it to access the full channel lineup on the Spectrum TV app, which only works on the Spectrum home network. For some reason, the Mesh router is giving me an IP that appears to be from Frontier Internet. The Mesh system was brand new when I bought it, and I’ve only ever used Spectrum as my ISP.

A Spectrum representative suggested that this might be caused by a setting on my router, such as traffic protection, malware filtering, safe browsing, or DNS over HTTPS. However, the Mesh system doesn’t have any of those features.

Does anyone know how I can configure the Mesh system to show the same IP as the Spectrum router or at least an IP that Spectrum will recognize as being on my home network?

Best answer by SURFboard Moderator

Could you please confirm your product’s model number?

This topic has been closed for replies.

2 replies

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Could you please confirm your product’s model number?


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  • Author
  • The Many
  • November 20, 2025

I actually got this figured out. Thank you for reaching out regardless!