I can't connect some devices with my home Wi-Fi?

From 2 weeks my wife works fine, but now i can't connect some devices to my home wife network but when i try to connect these devices to another wife router it works fine

these devices that can't connect to wife: iPhone, blackberry, xperia tibo & Nokia device, but my laptop & my PC internet cable works fine

please help me & sorry for my English

Thanks.

Added (1). EX: when i try to connect with my iPhone it says "unable to join the network"

How to delete unwanted music from my iPhone 4S?

I recently got a handed down iPhone 4S, and all of the previous owners music was on it (which I dislike) and I have no idea how to remove it. I have synced my phone with my iTunes and all of my music has been added to my phone but all of the music from before hasn't been added to my iTunes.So, how do I remove it from my phone?

If i'm getting robbed can i use a knife?

So today i was on the bus and i was using iphone and i noticed i guy watching me he was about 19 and mined i'm only 14 and pretty short. Anyway i placed the iphone in my pocket then the man tried to go in my pocket but i dindt allow him then he gave up then ran off the bus but i have a feeling hell try again maybe with more people or he might be armed so if he tries again do i have the right to stab him non lethally

Does 7 eleven iphone chargers work for a long time?

My two iPod charger cords broke because one fell and broke on impact since it was fragile and my other broke because my rabbit chewed it. I go to 7 eleven every morning to buy food throughout my school day (eating helps me focus), and on the counter are different colored iphone chargers for 5.29 each. They look like this:

http://www.ebay.com/...0642585809

AND

http://www.dhgate.com/store/product/color-usb-sync-data-cable-for-iphone-5-charger/153746190.html. ( each of them sold for 5.29 separately.)

I was wondering if they work and do they last long. Please and than you.

How to hactivate an iPhone 4 CDMA?

So I found an iPhone the other day when we went to visit our family in Houston. While we were there we went to the park to play some basketball, later as we were walking back to our car I came across an iPhone. So we came back to our home in Dallas and i wanted to use it but it said that I have to type in the persons email and password. Then it showed a phone number so I called it. They then said that I could keep since I was so far away, but they would not give me the email and password. How do I reactivate it or unlock or whatever so I can use it as an iPod.