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[ivan]

This appears to get more complicated as we go on.

Please confirm the following:
1) Modem to internet is Pace 2Wire 5012NV-002.
2) One router is ASUS RT-N56U.
3) One router is TL-WR1043ND.
4) Both routers are connected to the Modem.
5) The Modem is the DHCP server and is serving IP addresses in the 192.168.1.xxx subnet range (if not what set of IP is it serving?).
6) The DHCP servers on both the routers are switched off.
7) The NAS is connected to one of the routers.

That may look complicated but it is in fact a fairly simple arrangement.  The only thing that can make it complicated is if there is more than one DHCP server or a wireless connected computer is getting its IP address from a wireless router or access point on a different network.

The fact you are able to see the NAS shows it is working, we just need to find out why parts of it are being blocked.

[cable2]

Hi guys,
I just looked up the Pace 2Wire 5012NV-002.  Unless I am missing something, this is an ADSL modem /router combo unit.  So, that means there are in fact 3 routers on this system, apparently with at least 2 of them, possibly all three enabled as routers.  If that is the case, it is a wonder that you can connect to anything.  
If I were trying to sort this out, I would try just using the Pace as the main router and using the ASUS as an AP.  There are directions on the net for this, basically, you turn off DHCP on the ASUS, UPNP, and most everything else but leave the wireless enabled with whatever settings and most importantly, you have to assign the ASUS an IP that is on the Pace's routing table but is currently unused.  When done run an ethernet cord from the PACE'S LAN to an ASUS LAN.  I would also just disable any wireless on the PACE unit.  You could leave it enabled by using the same SSID but different channels.  If you can get this working, you could add the third router as an AP also in a similiar fashion.  Good luck

[ivan]

Hi Cable2,

That is what I was leading up to once it is confirmed that what I listed is correct.  Since they all default to either the 0 or 1 subnet but a 2 subnet appears I think there are outside influences at work as well.

[boyshawn]

Please confirm the following:
1) Modem to internet is Pace 2Wire 5012NV-002.
2) One router is ASUS RT-N56U.
3) One router is TL-WR1043ND.

Yes

4) Both routers are connected to the Modem.

Yes, both routers are connected to the Modem

5) The Modem is the DHCP server and is serving IP addresses in the 192.168.1.xxx subnet range (if not what set of IP is it serving?).

How do I check that?

6) The DHCP servers on both the routers are switched off.

I do not have access to the DHCP servers to TL-WR1043ND configuration setting. Is there a way to check that that if I am not access the configuration page?

7) The NAS is connected to one of the routers.

Yes, It is connected to ASUS RT-N56U.

[cable2]

Hi boyshawn,
To sort this out, the first thing to do is get the default ip address and password for each of your routers.  The TL-WR1043ND, is 192.168.1.1, user: admin pw: admin, it is the same for the ASUS.  The ip address for the 2 Wire is 192.168.1.254 and you already know the user and password.  First check the IP range on the 2 Wire, it will tell you this somewhere in the settings.  Then write that down and try to make note of a couple of the IP addresses in that range that are not used.  You will give these unused addresses to the other 2 routers.  The problem is that with them wired together as you have them, you may not be able to reach each of the other routers.  The temporary solution is to connect them one at a time directly to your pc with an ethernet cable and then use the browser to log in.  My best guess, unless you did something very unusual on setup the 2 Wire is set to do the DHCP assignments so work on the TL-WR1043ND first, connect from your pc to one on the LAN ports not the WAN port and login, if necessary, do a reset on this and it will go back to the defaults.  Once in, you basically want to assign one of those free ip addresses from the 2 Wire to the router then basically turn off almost everything else except the WIFI.  Here is a link for an example of how to do that
http://www.smallnetbuilder.com/wireless/wireless-basics/30338-how-to-convert-a-wireless-router-into-an-access-point.  You may find more specific directions by googling turning xxx router into an AP.
Then do the same thing with ASUS. 
You really only need one of these routers using WIFI especially if they are physically close.  If that is the case, I would use the ASUS as the single WIFI source as it is dual band and turn off the WIFI on the other 2.
I still have no clue as to why you have 3 routers, it's kind of like having a car with 3 steering wheels and at least 2 drivers...it's not going to work very well.  If not doing something extraordinary, you would be better off with one router and an 8 port switch.  I hope this might help but I am afraid it might be a bit complex for you.  Good luck

[ivan]

Cable2 has pointed out almost everything I was going to.

Just make your 2Wire modem the DHCP server and give the other two wireless routers fixed IP addresses that are outside the DHCP range (they can be in the DHCP range but that can cause some problems so it is better to give fixed IPs that are outside the DHCP range).

If you MUST have both WiFi units working (maybe like us where we have a WiFi access point on each of our three floors because of the construction of the building) use a different channel for each unit to reduce interference.

Like Cable2 I would question the use of wireless routers rather than switches and an access point.