my camera need 2.4ghz connection

Here is one of dozens of messages that cover the scenario that you describe:

Re: Installing my Govee wireless system - NETGEAR Communities

I found it in the usual way, a search of this community.

There are many more where that came from. My guess is that CrimpOn can provide similar links.

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shingleung wrote:

my camera needs to connect under 2.4ghz, how to make it?

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Out of interest, what is "my camera"? Did you try a search for it around here? Maybe someone else has already grappled with this issue.