Q: Having Problems Extending Extreme with another Extreme as well as Express???

Extreme in Basement is (Extreme1)

Extreme in room is (Extreme 2)

Hi all! I have 2 AiportExtremes and a AiportExpress. I have (Extreme1) in my basement where it is connected to a modem with a cable. I selected the option EXTEND NETWORK and under Connection Sharing it is on SHARE A PUBLIC IP ADDRESS in Aiport Utility. The internet work and everything, but it is a bit weak upstairs. (Extreme1) is version 7.6.1, but it can be updated to 5.6.1. I hit update and nothing happens.... Why???

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I then wanted to put (Extreme2) in my room which was above the main floor to extend the connection. I connected a internet cable in (Extreme2) and the other side went into my Internet Wall Jack. After that, I connected a cable in my basement where my Internet Jack Box is to (Extreme 1.) That cable connected to the first Port of (Extreme 1) unless you count the modem cable so then it is in the 2nd Port.

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I went through the process on (Extreme2) by clicking continue and I did the name of the router, password, and I checked off remember in keychain. I then clicked I WANT AIRPORT EXTREME TO JOIN MY CURRENT NETWORK. After that, I clicked I WANT TO CONNECT AIRPORT EXTREME TO MY NETWORK USING ETHERNET TO EXTEND MY EXISTING WIRELESS NETWORK. I picked the name of (Extreme1) which is BigDogRouter and I get the final menu of what I clicked. It didn't save the settings I hit, like I hit I WANT AIRPORT EXTREME TO JOIN MY CURRENT NETWORK and it said I hit CREATE A WIRELESS NETWORK. The thing is though, under Wirless Network Name it's the network name of (Extreme1.) So this it totally mest up... I hit update and about 1 minute later, everything went through, both routers went green, Airport Utility was trying to detect the routers and then the problem occured where both of the routers dissapeared on Airport Utility. I got a messgae saying it couldn't detect the devices. After that happened, I couldn't get the routers to show back up, but on my bottom right side of the computer where my networks are shown, (Extreme1) network is there having full bars, but it won't let me connect. I had to do a full factory reset on both routers to get (Extreme1) back up and running.

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I then tried doing it manually. So i named it, password and checked off remember in key chain which is all under Base Station.

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I went to Wirless, I cliked EXTEND WIRELESS NETWORK and I had to type in the wireless network name of (Extreme1.) I checked ALLOW WIRELESS CLIENTS as well as giving the router the same security as (Extreme1) which is WPA2 PERSONAL. I also gave it the same password.

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Once that was done, I clicked Internet Connection. Connection Using had WIRELESS NETWORK selected. Under that, Connection Sharing had OFF (BRIDGE MODE) already selected as well. It wouldn't let me change Connection Useing and Connection Sharing.

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I clicked update and the same exact thing happend as if I hit continue. I am totally confused and I have been trying to fix this problem for more than 2 months. If anyone has any ideas then please post up. I had a similar problem with my Express to, but I won't get into that till later.

Thanks!