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Benefits of running 2 Wi-Fi networks from the same router? What are the downsides? (I don't know if there is a better community for this question) (discuss.tchncs.de)

submitted 8 months ago by [email protected] to c/[email protected]

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I am worried that there is not really a benefit of doing that, just more noise and energy consumption.

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[–] [email protected] 46 points 8 months ago* (last edited 8 months ago) (20 children)

Energy consumption is essentially the same, as it's using the same radios.

For what it's worth, I have several SSIDs, each on a separate VLAN:

my main one
Guest. Has internet access but is otherwise isolated - Guest devices can't communicate with other guest devices or with any other VLANs.
IoT Internet: IoT and home automation devices that need internet access. Things like Ecobee thermostat, Google speakers, etc
IoT No Internet: Home automation stuff that does not need internet access. Security cameras, Zigbee PoE dongle (SLZB-06), garage door opener, ESPHome devices, etc

(to remotely access home automation stuff, I use Home Assistant via a Tailscale VPN)

Most of these have both 2.4Ghz and 5Ghz enabled, with band steering enabled to (hopefully) convince devices to use 5Ghz when possible.

This is on a TP-Link Omada setup with 2 x EAP670 ceiling-mounted access points. You can create up to 16 SSIDs I think.

[–] [email protected] 2 points 8 months ago

Ooh I like the idea of "no Internet." I do trust all of those devices (open source), but they could still be pwned.

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