Did you read page 99 of the manual?
It can take some tweaking to turn a modem/router in to an access point. For example, you have to turn off DHCP and NAT settings. You don't want the old modem handling the allocation of IP addresses. Page 54 of the D6300's manual explains this.
Have you been out into Google land for help?
It doesn't matter which modem you plan to use, the approach is mostly the same.
Remember, if you are using this as an access point, connect it to the network with one of the LAN ports, not the Internet port, which comes into its own if you want to use this as a router.
@Kiwimarkus wrote:
Unfortunately the AP setup Mode does not show in the "Advanced setup" section.
With my D6400, a similar device, there is a Wireless AP entry in the Advanced Setup list just under Wireless Settings.
The manual for your modem (page 99) suggests that this is in Wireless Settings.
Not there?
