Bridge linksys BEFW11S4 and Airport

I am trying to extend my home network by bridging my wireless network between two routers. Currently, the Linksys is plugged into the cable modem and the Airport is in another part of the house. My laptop with Airport can see both and I can configure both, but I can't find the correct settings to let them talk to each other. Can anyone help?

The Airport needs to be in WDS Remote mode to extend the wireless signal. That works with other Airport Express and Extreme base stations but I've only heard of the Linksys WRT54G doing it successfully:
http://discussions.apple.com/thread.jspa?threadID=121820
If you figure it out let us know!

Similar Messages

Linksys WRT54GL and Airport Extreme dropping connections

In looking through these forums, I realize that people have had problems with their Linksys WRT54G routers and their Airport cards. There seem to be a lot of suggested fixes, but no definitive answer as to what's wrong. I don't know either, and after changing channels, changing Linksys firmware, changing encryption, creating background pings, and all of the recommended solutions, the problem persists. I wanted to document it here in the hopes that someone can figure out what's wrong. Here's a tail of /var/log/system.log during a period when the Mac was having trouble connecting to the Linksys. I don't believe that this is due to Wifi interference or the Linksys, since other machines in the house (a Mac running 10.4.8, but using a Cisco card), for example, don't have these same problems at this time.
Basically, this kind of behavior repeats for a half-hour or so, then settles down for "a while," where a while could be an hour or could be 6 hours, and then it repeats. I have no idea what the problem is, and I suspect it's a problem with the Airport Extreme, rather than with the Linksys. Ideas?
Feb 3 18:46:30 droopy kernel[0]: AirPort: Link Active: "67ramona" - 001839cf9822 - chan 1
Feb 3 18:46:30 droopy configd[54]: AppleTalk startup
Feb 3 18:46:36 droopy configd[54]: AppleTalk startup complete
Feb 3 18:50:22 droopy kernel[0]: AirPort: Link DOWN (AP deAuth 0)
Feb 3 18:50:22 droopy configd[54]: AppleTalk shutdown
Feb 3 18:50:22 droopy configd[54]: AppleTalk shutdown complete
Feb 3 18:50:26 droopy configd[54]: posting notification com.apple.system.config.network_change
Feb 3 18:50:26 droopy configd[54]: setting hostname to "droopy.local"
Feb 3 18:50:26 droopy lookupd[3212]: lookupd (version 369.5) starting - Sat Feb 3 18:50:26 2007
Feb 3 18:50:32 droopy kernel[0]: AirPort: Link DOWN (out-of-range 0)
Feb 3 18:50:38 droopy kernel[0]: AirPort: Link Active: "67ramona" - 001839cf9822 - chan 1
Feb 3 18:50:38 droopy configd[54]: AppleTalk startup
Feb 3 18:50:41 droopy configd[54]: posting notification com.apple.system.config.network_change
Feb 3 18:50:41 droopy lookupd[3216]: lookupd (version 369.5) starting - Sat Feb 3 18:50:41 2007
Feb 3 18:50:41 droopy configd[54]: setting hostname to "droopy"
Feb 3 18:50:43 droopy mDNSResponder: Repeated transitions for interface en1 (192.168.1.134); delaying packets by 5 seconds
Feb 3 18:50:44 droopy configd[54]: AppleTalk startup complete
Feb 3 18:53:28 droopy kernel[0]: AirPort: Link DOWN (AP deAuth 0)
Feb 3 18:53:28 droopy configd[54]: AppleTalk shutdown
Feb 3 18:53:28 droopy configd[54]: AppleTalk shutdown complete
Feb 3 18:53:32 droopy launchd: Server cbff in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[3216]: exited abnormally: Hangup
Feb 3 18:53:32 droopy configd[54]: posting notification com.apple.system.config.network_change
Feb 3 18:53:32 droopy configd[54]: setting hostname to "droopy.local"
Feb 3 18:53:38 droopy kernel[0]: AirPort: Link DOWN (out-of-range 0)
Feb 3 18:53:38 droopy lookupd[3235]: lookupd (version 369.5) starting - Sat Feb 3 18:53:38 2007
Feb 3 18:53:38 droopy kernel[0]: AirPort: Link Active: "67ramona" - 001839cf9822 - chan 1
Feb 3 18:53:38 droopy configd[54]: AppleTalk startup
Feb 3 18:53:41 droopy launchd: Server cb0f in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[3235]: exited abnormally: Hangup
12" PowerBook G5 Mac OS X (10.4.8)

John Galt wrote:
jr azzarelli wrote:
Drops wifi and ethernet equally.
I thought I understood your Airport network would disconnect, but I don't understand what you mean by "drops ethernet". Clearly, if your wired connection stops working, so will your Airport network. Explain?
What I am saying is that I have wireless connections to the Ae and I have wired connections to it as well. Both are getting dhcp from the Ae. Both are getting dropped. In the log I am getting these entries, about once per hour...
"Jan 06 10:26:00 Severity:5 Connection accepted from ::ffff:10.0.97.190/57902.
Jan 06 10:26:01 Severity:5 unloading current configuration.
Jan 06 10:26:20 Severity:5 (WAN) link state is Up.
Jan 06 10:26:20 Severity:5 Deauthenticating with station ff:ff:ff:ff:ff:ff (reserved 3).
Jan 06 10:26:20 Severity:5 Rotated TKIP group key."
The 10.0.97.190 is the recently-added OS X Server. Not sure what the port is. But it seems to be doing something untoward.
Anyone?
Anyone?
Bueller??

Imac G5 to Linksys Network AND Airport express(AX) for music, lost internet

G5 is connecting to wireless linksys network but no longer getting IP address (nor connecting to network to configure AX and itunes doesn't see remote speakers) Using DHCP, can see Mac addresses on Linksys web configure screens.
I had the G5 connecting to Linksys Network WRG wireless router accesspoint through to DSL modem. This has worked fine for months. Also connect to this network with WinPC. All using WPA Personal security password.
CD Player died, so I purchased the Airport Express to play music to my stereo.
I did get the Airport Express configured...although many tries. I had to turn on broadcast of network name or SID in the Linksys webconfig. Music did play from G5 but I somehow lost the ability to connect to internet. Firefox gave "cannot connect" message. (Safari Network Diagnostics cannot fix issue) When I stopped and restarted the Airport(on G5) the music quit playing. Still have green light on Express. WinPC still works fine as well, HOWEVER:
G5 says that either(depending on which Im trying) that Airport is connected to "wireless network name" but doesn't have ip address OR that ethernet is connected but doesn't have ip address. I see on linksys that the mac addresses are "on". I've restarted everything, I've trashed the sys config folder and restarted G5...still same issue. Again WinPc works fine. Using DHCP...
Any ideas on how to get my G5 back on network? and then I can try to have the AX work again.
No tunes, and now no internet...help?

done

Linksys WAG120N and Airport Express - Does this work ??

Hi,
I just replaced my Linksys WAG54G by a WAG120N modem-router.
I still have a problem with my Airport Express.
Everything was working fine with the WAG54G but since I'm using the WAG120N I always got the same problem.
After switching OFF-ON the Airport Express, I can only see it during a few minutes in the Airport Utility. After this, it disappears (until next reboot, etc.).
I've used the same setup/config for my modem-router (compared to the old one).
Firmware has been upgraded.
I've completely re-configured the Airport Express.
I've re-installed the Airport Utility.
I've also tried to use other channels, etc.
When I'm using the WAG54G, I do not have any problem !
Is this WAG120N finally compatible with the Airport Express ?
I'm really needing some help (before bringing it back to the vendor and selecting another model) !
Please, it's urgent !
Thks

Yes it is visible during a few minutes when I switch it off-on.
I can then access the config and change some parameters but after those +/- 5 minutes it disappear from the Airport List.
... and this is also true when you have the AX directly connected to your iMac via Ethernet?
I just want to be sure that the AX itself is not potentially fault.
When joined to another wireless network, of course, it will be dependent on the "stability" of that network. One other thing that might be possible is if you have the new Linksys configured for any special type of mode. One that I can think of is called "burst" mode. Another is wide-channel mode for the 2.4 GHz band. Neither of these are supported by the AX and may be a reason that it keeps dropping the connection.
Finally, were both routers purchased in your country and are made to operate there? I've seen this problem before when, for example, an individual buys a router, let's say, to be used in Japan and tries to operate it in Europe.

Linksys router and Airport express

I need to add a AX as a router to a Linksys router, so I can add a guest network on the AX.. The Linksys router is wired only.. Can this be down and how?

try eliminating a hop. instead of connecting to the router, connect to the Express, assuming it is setup to act as a remote base station.
if you are connected to the router via wireless, to reach the AEX, you are having to go thru the router first, then to the AEX. A direct connection to the AEX will reduce ping times, etc, thus possibly providing a more stable connection to attached speakers.
Beavis2084

I'm looking for some help connecting linksys IP Cameras to my home network to monitor my property when I'm travelling. I used to do this with linksys WAPS, but since I've discarded all my old linksys networking and standardized on airport, I can't get the

I'm looking for some help connecting linksys IP Cameras to my home network to monitor my property when I'm travelling. I used to do this with linksys WAPS, but since I've discarded all my old linksys networking and standardized on airport, I can't get these things working. I know that I have to identify my camera through the DHCP table and set up port forwarding and there is the problem.
My network consists of 4 base stations set up in a roaming network - same network name and passwords. I need to do it this way so I don't have to switch network when I move from one side of the house to the other, go to the cabana, or my shop in the barn. The network works pretty well since I went to a roaming set up. Good performance, yata, yata, yata.
However, the roaming network requires the AEBS's to be set up in bridge mode, rather than sharing an ip address. When the AEBS is set to bridge mode, you don't see a DCHP table or have the ability to identify your IP Cam through the AEBS - and hence, no port forwarding.
I am able to identify and set up my Linksys IP Cam by locating the ip address on my FIOS router, even though, it's plugged into an AEBS. I set it up, see the video, remove the ethernet cable from the IP Cam, restart - and I can't get to it from an AEBS. In researching this, it appears, I should be setting up the AEBS to "share an IP Address", going to the DHCP table and identifying the camera's IP address and setting up port forwarding. However, you don't see any of the DHCP or port forwarding options in Airport Network Utility when configuring in bridge mode.
I'm hoping I'm missing something here and that the solution isn't to set it up at the FIOS router level, but I'm beginning to think that's my only hope. What concerns me there is that I should be able to see the IP cam on the network without port forwarding since I'm not coming from outside, and I can't even do this unless it's connected hard wire.
I'd appreciate any insight into this that anyone might have. I've hit the wall with what I know.
Thanks.

In a roaming network, your "main" router is the device that would require port mapping/forwarding to be configured in order to access the IP camera from the Internet. This router is also the one that would be provide the private IP address for the camera which you will want to be a static one.
So as you described your network, the IP cameras should be getting an IP address or you assigned it a static one and this is the address that you would enter in the Private IP address (or equivalent depending on the router used) field when setting up port mapping.
If you are not able to access this camera from the local network, then this should be troubleshot first.

Creating a bridge with airport extreme (base) and airport express

i am having trouble creating a bridge with airport extreme (base) and airport express. i got the airport express to connect to my network. Airtunes sees it fine. i have an iMac (running Tiger) connected to the airport express via ethernet which i was hoping to get internet on (the iMac doesn't not have built in wireless and i had a spare airport express). now the airport express is no longer visible to the airport setup assistant on that iMac. but, like i mentioned, Airtunes is working fine, and the light is green.
i'm new to the wireless stuff. i am sure i just missed a step. how do i get the iMac to connect to the internet via my airport express bridging to my airport extreme wireless network?
your help is appreciated.

You can do this with the equipment you have. Configure the AirPort Extreme base station (AEBS) to act as a WDS main base station and configure the AirPort Express (AX) to act as a WDS remote base station. That will allow you to use the Ethernet port on the AX.
Unfortunately WDS also causes the available wireless bandwidth to be cut in half.

Mini Server, bridging Ethernet and Airport ?

Hy there.
I´ve got a Mini running 10.5 Server with Ethernet en0 and Airport. To set up for testing I´m want to set the Mini as a wireless bridge. With NAT and the gateway assistant, I`m only apple to set up routing with a block Airport -> Ethernet. In detail:
Ethernet 192.168.100.x
Airport 192.168.1.x with NAT and DHCP
Clients connected to Airport aren`t able to go to the 192.168.100.x network.
Is it possible to bridge the two nic´s?
Aggregation won´t work on Airport.
Thanks for reply.

The network configuration details and the goals aren't entirely clear (to me) here, so I'm going to shot-gun several answers here. I (also) don't know how experienced you are with IP networking and terminology; apologies in advance.
"Bridging" occurs at layer 2 and is relatively comparable to a network cable or such and thus arguably transparent to network traffic (you can't "see" a bridge at the network layer any more than you can "see" a hunk of network cable), where "Routing" is layer 3 and typically involves IP addresses and a routing stack. Bridging doesn't involve an IP network address for the intermediate device, where routing does.
Your Mac Mini here lacks bridging capabilities, and would be either a non-routing host or (with two NICs and a requirement to route traffic through) an IP router.
Various Airport devices can be configured as routers or as bridges. The default configuration is the former; as a WiFi router. If you want to run the Airport as a bridge, then it won't have an IP address. Various folks will refer to a WiFi device set up as a bridge as an Access Point, as well.
Depending on the subnet configuration (and I will here assume you are using two subnets here, the 192.168.1.0/24 and 192.168.100.0/24 subnets) and if you're using your Airport as a router in 192.168.100.0/24, you'll need to set up the Mac Mini or another IP router-capable device in 192.168.1.0/24 as the default IP gateway (default router) within the Airport configuration. That default gateway (router) will itself need a path to the wider Internet, and routes to other subnets.
Getting a Mac to function as a router and as a network gateway (and with NAT and firewall) is possible, but you'll have to set up the default routes appropriately. It's generally (far!) easier to use an external box for this purpose; a dedicated firewall and NAT and router box. It's also something I typically prefer; having users and software configuration changes and the usual sorts of activity found on a Mac OS X or Mac OS X Server occurring on a firewall can risk (accidentally, unintentionally) open up a remote exposure.
If you want to use link aggregation with Mac OS X Server, then you'll usually need a network switch capable of IEEE 802.3ad link aggregation. AFAIK, Airport doesn't provide link aggregation.
Apropos of nothing else in this reply, if you're planning to eventually use VPNs (tunnels), I'd also suggest getting out of 192.168.0.0/16 address range (and into 10.0.0.0/8 or 172.16.0.0/12, per RFC 1918), everybody uses that, and various tunnels need unique subnets both locally and on the target end of the connection.
Here's an intro to [networking, routers and firewall|http://labs.hoffmanlabs.com/node/275] pieces, and a previous discussion of [IEEE 802.3ad link aggregation, BGP and such|http://discussions.apple.com/thread.jspa?messageID=9141545] here in the forums.
It's my general preference to block access to the LAN with a dedicated firewall/NAT/router box for the reasons described above as well as other reasons; that box can act as the default gateway for all subnets, as well.
If I've entirely missed your question with the above answer(s), hopefully the above can help us get a little closer to your particular goal and an appropriate solution.

Configure TC and Airport Extreme Base Stations with different channels

I had to do some serious workarounds to use the Airport Extreme Base Stations as an access point with the same wireless network name primarily due to channel overlap. I thought I would post my results here since I didnt' find a good article online.
Also, I found the Snow Leopard verison (5.4.2) of the Airport Setup Utility far superior to Lion's Airport Utility (6.x) in terms of advanced setup.
Setup is a 3 flloor house where the 3 wired network locations have wireless overlap. The problem was that the access points would not hand off the wireless signal because the channels for each airport/TC were automatically set to the same channel. In non-apple setups, this is how you force a wireless client to switch access points (since the wireless software on your client/mac/windows can detect which access point is stronger and moves to the alternate channel.
Using apple's "Extend this wireless network" option removes any ability to manually configure wireless channels. I am writing this from memory, so feel free to ask questions and I will track this topic:
Procedure
Setup time capsule as your base station. Do all the setup for your wireless and guest networks. Manually configure the network and change the wireless channel to a specific channel for a/b/g networks (e.g., 3) and n networks (e.g, 167).
Plug your first airport extreme/access point into your wired network. Do not plug it into the "internet" ethernet plug, use one of the 3 ethernet switch locations
Use the airport utility to first configure it to "extend" your wired network.
Then, go in and reconfigure it manually in the airport utility. Choose the option to setup a "new network" and name the network the same as the TC wireless network name, security, etc.
Change the channel from "auto" to a different channel than the TC (e.g., 6 and 137).
Now go to the top tab and click on the "internet" icon
Go to the DHCP tab and change it to "bridge mode." This will tell the AE to not give out IP addresses (the TC will do this for you). If you get an error that the IP ranges conflict, you have not done this
Note that if you have a guest network setup, you will need to set this up on the AE as well.
Now test your airport setup. Take your client (macbook, iOS device) and connect to your network. Move to a spot near the TC and pull up a web page. Keep an eye on the signal strength and beginv moving toward the AE. Refresh the page as you move around. You should at some point see the signal strength increase. Refresh your page again. You should be now connected to to the AE. I have found that Macbooks do a better job than iOS devices because you get an extra signal bar to measure strength, and they have larger antennas which allows you to better measure problems with handoff
Another test you can do is to start backing up on your TC and then test the move. The handoff will truly show you that the TC is handling the process but the AE is relaying to the TC for backup.
If you need to setup another AE, simply follow setups 3-10.
I hope this helps others. I've done this setup 100 times on Linksys devices and although they are cumbersome, they at least allow me to do this setup much more quickly and easily than the apple products.

I had to do some serious workarounds to use the Airport Extreme Base Stations as an access point with the same wireless network name primarily due to channel overlap. I thought I would post my results here since I didnt' find a good article online.
Also, I found the Snow Leopard verison (5.4.2) of the Airport Setup Utility far superior to Lion's Airport Utility (6.x) in terms of advanced setup.
Setup is a 3 flloor house where the 3 wired network locations have wireless overlap. The problem was that the access points would not hand off the wireless signal because the channels for each airport/TC were automatically set to the same channel. In non-apple setups, this is how you force a wireless client to switch access points (since the wireless software on your client/mac/windows can detect which access point is stronger and moves to the alternate channel.
Using apple's "Extend this wireless network" option removes any ability to manually configure wireless channels. I am writing this from memory, so feel free to ask questions and I will track this topic:
Procedure
Setup time capsule as your base station. Do all the setup for your wireless and guest networks. Manually configure the network and change the wireless channel to a specific channel for a/b/g networks (e.g., 3) and n networks (e.g, 167).
Plug your first airport extreme/access point into your wired network. Do not plug it into the "internet" ethernet plug, use one of the 3 ethernet switch locations
Use the airport utility to first configure it to "extend" your wired network.
Then, go in and reconfigure it manually in the airport utility. Choose the option to setup a "new network" and name the network the same as the TC wireless network name, security, etc.
Change the channel from "auto" to a different channel than the TC (e.g., 6 and 137).
Now go to the top tab and click on the "internet" icon
Go to the DHCP tab and change it to "bridge mode." This will tell the AE to not give out IP addresses (the TC will do this for you). If you get an error that the IP ranges conflict, you have not done this
Note that if you have a guest network setup, you will need to set this up on the AE as well.
Now test your airport setup. Take your client (macbook, iOS device) and connect to your network. Move to a spot near the TC and pull up a web page. Keep an eye on the signal strength and beginv moving toward the AE. Refresh the page as you move around. You should at some point see the signal strength increase. Refresh your page again. You should be now connected to to the AE. I have found that Macbooks do a better job than iOS devices because you get an extra signal bar to measure strength, and they have larger antennas which allows you to better measure problems with handoff
Another test you can do is to start backing up on your TC and then test the move. The handoff will truly show you that the TC is handling the process but the AE is relaying to the TC for backup.
If you need to setup another AE, simply follow setups 3-10.
I hope this helps others. I've done this setup 100 times on Linksys devices and although they are cumbersome, they at least allow me to do this setup much more quickly and easily than the apple products.

Argh! Trying to Replace Linksys with New Airport Extreme...

Been fighting with this for hours...about ready to take the new Airport Extreme back ...Here's the deal:
I currently have a very wired and wireless 2story home professinally set up with 2 Linksys devices as the primary network and a couple previous generation airport expresses as extenders.   Due to video, audio and other systems the primary router for the network/WAN closet out in the garage needs to remain on the primary Linksys (non wifi) router. I want to replace the Linksys Wifi router (see below) that is puposely set up and has worked for several years as a double NAT config with the new Airport Extreme but i have tried duplicatiing the exact configs from the Linksys router and all the various ways you can use the Airport Express in DHCP/NAT and even in Bridge mode and it still wont work! I've never considered Linksys software easier (and definately more flexible and informative) to use than Apple until this experience! Very frustrating.... I'm being very explicit and using the typical Linksys config profiles below so as to hopefully help you translate this into specific configs i can wrangle into the Airport Extreme to make it work like the
Current Primary Network:
Current WAN Router / + 24 Port Switched LAN Network (for wired ethernet access ports used throughout house) > Linksys BEFSX41 + Linksys 24 port Switch locted in a custom built data /video / audio closet in garage
WAN IP: DHCP
LAN IP: 192.168.1.1
Subnet Mask: 255.255.255.0
Current WiFI Network > Linksys WRT160Nv2 (currently conected to the 24port switch via a hardwired ethernet wall port upstairs in my office)
Internet Connection Type: Static IP
WAN IP: 192.168.1.2
Subnet Mask: 255.255.255.0
LAN IP: 192.168.0.1
Subnet Mask: 255.255.255.0
Per config notes from the network engineer who i worked with to build this network when i built the house
"this allows the 192.168.0.x wifi device to successfully route to the 192.168.1.x wired router (and vice versa)"
My goal is to replace the Linksys WRT160Nv2 with the new Airport Extreme (whose range and ability to reach both upsatirs and outside to the beach is MUCH better) and locate it DOWNSTAIRS and connect it in the same way as the Linksys (via an ethernet port in the living room) to the same switch / router in the data closet.
I have tried to set up the new Airport Extreme to replicate this config several different ways both bridged and not bridged (including telling it to ignore the double NAT warning) with the latest.   I am pretty sure non-bridged is the right way to do it but i seem to lack a config parameter to tell the Airport Extreme to replicate the equivalent of the WRT160Nv2 settings despite trating all the submenues and options on the airport extreme set up / Airport Utility App. Do i have to telnet directly into the Airport Extreme config files to do this natively? Help!
PS - no i cannot / will not put the Airport Extreme in to replace the primary Linksys router in the data closet - there is no way it will fit or that its wifi could penetrate the EMI and insulation of all the other electronics in the data closet out in the garage and get a good connection into the house

The trick on the airport extreme is to change the DHCP .. when you change the DHCP it changes the actual IP of the AE..
So go to the setup and open the dhcp, in the network options and you can select by arrow the first two octets and replace the third.
I just posted info on this in another post..
https://discussions.apple.com/thread/5134560?tstart=30
Does this answer your question, as I am a bit unclear otherwise??
I have to say I do not like using double NAT.. it is becoming worse and worse as the amount of material on the internet that requires interactive connection increases.. you block so much by doing this.. double NAT is an issue .. not just ignore the warning.
There is no reason why you need double NAT.. you should have a single flat network. If you need to keep some things isolated from others the correct way to do it is vlan.. but you will need a better router than the old linksys to do it. And possibly a managed switch. Nowadays a managed 24 port gigabit switch is not a bad price at all.

Network set up using airport extreme, time capsule and airport express

I have searched for relevant answers but can only find different bits here and there.
My set up is as follows:
I have a Linksys wireless router running a stable wireless network for the other computer users in the house and wish to create an extended, additional network using airport extreme connected to the Linksys by ethernet to create the network and then time capsule close to my Mac Mini on my desktop and airport express at the other end of the house to try and extend the range of the network.
I have been trying for 4 days to set this up but without success. I have tried all of the options mentioned in different posts, using WDS, extending a new network etc. I can get connection between the three devices but monitoring on iStumbler there appears to be little improvement in the strength of the signal, iStumbler also shows the time capsule dropping it's signal totally every 10 or so seconds for a few seconds and then I get a positive signal strength for another ten seconds or so.
Can anyone help, it is driving me insane. I am a recent convert to apple computing and have been hugely impressed with all products until now. The claim that the set up of these wireless products is simple seems to be very exaggerated.
I am happy to provide any relevant system or hardware information.
Thanks in anticipation.

I have an AirPort Extreme acting as a wireless base station, connected to a BT router by ethernet.
Then the correct setting for Connection Sharing on the AirPort Extreme would be "Off (Bridge Mode)".
If I set Connection Sharing to "Share a public IP address", I'm told that: "The DCHP range you have entered conflicts with the WAN IP address of your Apple Wi-Fi base station"
Exactly. You have two routers....The BT device and the AirPort Extreme in series with both of them trying to act as the "main" router when you configure the AirPort this way. That won't work.
Only one can be the main router, and it must be the BT device in your setup. So, the AirPort Extreme....and any other AirPorts on your network must be setup to work in Bridge Mode to allow the network to operate correctly.

Linksys befw11s4

I am trying to figure out if I can use an Airport Express (the $99 dollar thing) with my wireless Linksys befw11s4 to stream music from itunes in my Windows XP Pro laptop. I cant seem to find a strait answer on the web. I am not sure if it is becuase the Linksys rounter is old or what. itunes, linksys, and xp are all so popular someone must have figured out how to do this. I spoke to someone at the apple store who said it could be done but he did not know how. I am looking for some relitivly clear instructions.
Maybe I am searching for the wrong thing terms but cant seem to figure out it it is possible and how to do it with this set up. I dont know why it is not as easy as conecting the linksys router to the airport router with a cat5 cable and then the airport router to my stero.
Any help would be appreciated.

Do I need to log into my linksys router and do anything?
No
2)It only allows computers with listed MAC addresses.
OK, you will need to make a change. The best solution is to disable this feature since it offers no real security. If you don't want to do that, you must add the MAC address of the wireless interface of the AX to that list.
3)does not broadcast its name (i thnk this is called SSID).
This doesn't have to change. However you should be aware that this offers no security. The SSID is still broadcast between the base station and any connected clients. Therefore it only takes a few seconds to find the SSID and access your network.
Sometimes this option does cause problems with wireless connections.
If you want to secure your network, forget about hiding the SSID and MAC address filtering. Use WPA2 or WPA with a non-dictionary password... if your wireless devices support it.

Airport Extreme and Airport Express conflict and failure

I spent 2.5 hours on the phone with Apple and still could not get my Airport Extreme and Airport Express to function. My Apple TV failed as well:
* Connected AEX through Airport Utility to internet. Airport Utility replaced my old configuration on my LinkSystem router. Green light.
* Checked Apple TV. No connection available. Unplugged cable modem, waited 1 minute and tried again. Apple TV connected. No problem.
* Flashing amber light on Airport Express for Airtunes. Does not show up in wireless device list. I call Apple.
* Reset Express. Still no signal. Connect via Ethernet cable. Reconfigure. Green Light. Music works.
* Check internet connection, in order. Apple TV fails. No connection to server.
* Apple TV reset. No connection. No wireless network found.
* Reset Airport Express. Reconfigure channel specifications. No connection with ATV or Airport Express.
* Disconnect Airport Express. Reconfigure. With ATV disconnected I get Airport Express back. Green light but this time no music. Remote speakers appear on itunes, but no music is transmitted.
* Did a total wireless reset on Extreme, and now both Express and ATV are not working.
Frustrated and dissapointed I disconnected everything put back my 5 year old Linksys router and within 15 seconds both ATV and Airport Express worked flawlessly.
How can this happen? What is wrong with this device? It is my second one in a week. The first one made no wireless connection to my Mac at all.
After sulking for hours I tried again, this time leaving the Express out of the equation and reconfiguring the ATV to take over airtunes. After a reset it did fine. Now I have a pure n signal running at 5hz. ATV works again. So does internet.
Any suggestions? Is there something I did not try?
I tried the Firewall trick, the accept all incoming connections trick, the disabling of the iv6 trick, the join a wireless connection trick, and everything else Apple Care could think of.

Maybe I was not clear enough on my post and configurations,
I had a Linksys before I purchased the airport extreme. My airport express joined the Linksys network for the purpose of airtunes. This worked flawlessly from day one.
Airport Extreme asked in the utility to take over an existing network or replace a router. If you chose this option it adopts all passwords, wpa/2 configurations for security and such.
I chose this option thinking that since it is an apple product it would take over everything and work. My airport express had origianlly been set to join my old Linksys network. Since the airport extreme took over this configuration it should work.
Apple stated many times that there seemed to be a conflict and kept asking me about the placement of my airport extreme.
My Linksys was never part of a bridge or a network within a network. It was removed before the Extreme was ever turned on.
After all the problems and hours of trying with Apple, i find it funny that all I had to do to restore eveything was plug my old Linksys back in and conect all the cables, and bam....it worked.
So what is wrong with the airport extreme, or is there something wrong with itunes 8 and its interface with the express? For whatever reason the extreme cannot make the express and my ATV work at the same time.

Best Router with DSL Modem for use with AT&T DSL and Airport Express?

I recently had my old 2WIRE from AT&T DSL service die, so purchased a new 2WIRE 2701HG-B. My old 2WIRE worked with my Airport Express, which is hooked up to my DVR for DirecTV use. The new 2WIRE apparently is not compatible with the Airport Express, so I returned it and purchased a NetGear Wireless-N 300 Router with DSL modem. While this one does work with the Airport Express setup, it runs very slow. This router has mediocre reviews, so I'd like to find a better one.
I'd appreciate any suggestions for a Router w Modem that would work best with my AT&T DSL and Airport Express (802.11n) within the $100 - $150 price range. Thanks!

Configure the Express as a bridge: Connect via "Ethernet", and set Connection Sharing to "off (bridge mode)".
The switches ought not to be a problem, and I don't know why your router froze. The Express is simply another wired client, just like a computer might be.
do I turn off DHCP on the router,
No. Something has to provide routing functions so leave the Linksys alone.

Constant disconnects with Linksys BEFW11S4/Westell/Bellsouth Ultra DSL

I recently upgraded to the 6mb DSL service from Bellsouth. Previously I had the 3mb. Anyways everything was fine for sometime even with the faster service. The last few weeks I have been having constant disconnects(several a day). Naturally the wireless lite on my Linksys BEFW11S4 goes out each time. I then un-power the router then re-power and I'm off and running again. I am using a westell modem. Bellsouth tells me that its not them since i do have an internet coneection and referred me to Linksys. After several live chats(due to disconnects and then having to start tellin my issue all over again) they had me upgrade my firmware. Well did that and problem hasn't changed. I've played with the different router channels and they don't seem to help as well. Bellsouth told me that I had a static ip, so I tied setting up router that way, but then i got no connection. Unil reently everything was fine, this just started! Any help is greatly appreicated. My 17 yr old daughter is going through internet withdraws upstairs!

If you are on DSL using a Westell Modem; make sure you ask your ISP to bridge the Modem first and use the PPPoE fucntion on your router. Change the LAN IP of the router to something else like 192.168.2.1 so it won't get a conflict with the IP of the Westell. Then if you are on cable, you can try adjusting the MTU size to 1492, 1400, 1300, or 576 then check which value would get your connection stable. You can reset your router right after you upgrade it also, then reconfigure it again. Hopefully yell be fine after that!
"The war between heaven and hell depends on the choices we make, and those choices require sacrifice. That's the test"

Bridge linksys BEFW11S4 and Airport

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