NetGear23 wireless use with email feature

> My router [...]

   Which is a what?  Look for "Model" on the product label.

> [...] will not see the email feature in Charter when in WiFi mode.
> [...]

   Rather than you deciding what your (unspecified) "My router" can or
cannot "see", it might be more helpful if you described what _you_ are
doing, and what _you_ see when you do it.

   If it works as expected with one network connection, but not with
another, then my guess would be that Windows is being a little
over-protective about your privacy:

      https://support.microsoft.com/en-us/windows/make-a-wi-fi-network-public-or-private-in-windows-10-0460117d-8d3e-a7ac-f003-7a0da607448d