Using modem Sagem f@st 3464 (Scarlet One : vdsl tv VoIP wi-fi) : impossible to create a new Wi-Fi network (2.4 or 5 GHz) ? Conflict with DHCP / NAT and so on. No answer from the Apple help desk, Air Port Utility 6.1 unusable (configuration = Win 7)

Question

Good afternoon,
My internet connection is delivered by a modem Sagem f@st 3464 (Scarlet One : vdsl   tv   VoIP   wi-fi), it's almost the same than a BBox-2 from Belgacom (software and configuration).
This modem has 4 ethernet port, 2 for TV, 2 for LAN, the WAN port is RJ-11 and the connection is a PPPoE (in fact, it's the Belgacom network). I also got a Wi-Fi 802.11g on it.
The main raison why I bought a TC is the dual Wi-Fi 2.4 GHz and 5 GHz (for 802.11n), especially for my MacBook Pro and my iPad 3.
First of all, can I do the following with my TC :
1) connecting the TC using a ethernet cable from one of the two modem's LAN ports to the TC's WAN port
2) create a new Wi-Fi network using the TC ?
Up to now, after 2 man days of configuration, my TC is connected to my existing LAN network, as a bridge, but there is no new Wi-Fi network.
The Airport Utility 6.1 "Wizard" is just un-usable and I need to use a Win 7 laptop in order to get access to all the configuration !
The standard manual is very poor.
Does someone already create a new Wi-Fi network using its TC connected by Ethernet on a modem/router device ? How do you set up the DHCP (and NAT) ? Which range did you use ?
Sincerely yours,
AVDB

Answer 1

1) connecting the TC using a ethernet cable from one of the two modem's LAN ports to the TC's WAN port
2) create a new Wi-Fi network using the TC ?
Does someone already create a new Wi-Fi network using its TC connected by Ethernet on a modem/router device ? How do you set up the DHCP (and NAT) ? Which range did you use ?
This is easy enough to do..
Plug the TC directly into a computer.. without other connections to do the setup.
Using the newly installed 5.6 utility.
Bridge the TC.
Create a wireless network.
This is an older screen shot and I would set security to WPA2 Personal only not WPA/WPA2 Personal as shown above.
I do recommend you use wireless names that are short, no spaces, pure alphanumeric.
Update the TC..
Now plug it into the modem router.. it will be a part of the network without doing NAT and DHCP itself.. which you do not want.. that leads to double NAT issues.. but it is a WAP that provides access to devices on both 2.4ghz and 5ghz bands directly to the main router.