Hi
I'm thinking of replacing my skyhub piece of [censored]. I was wondering if I get myself this 7800N would I be able to setup this up in bridge mode and still be able to use the wifi ap function?
The 7800N does not have VDSL2, it only has an Ethernet WAN for use with fibre, so will require a VDSL2 modem in addition.
Even if it had built in VDSL2 modem, if running in bridge mode you would not be able to use the AP functionality, that would have to depend on the device that did the router functionality, or another AP you add to the LAN side of your router.