Mac Airport Wireless disabled my other routers?

I have 2 Linksys router in my office I could use any of them specially for may wireless printing ,today I add another wireless base MAC Airport Extrem .Now I can not go online with my two other routers, I can see them from my Mac G5 laptop ( OX 10.5 Leopard).but they will not connect to internet or printer ..I can... show more I have 2 Linksys router in my office I could use any of them specially for may wireless printing ,today I add another wireless base MAC Airport Extrem .Now I can not go online with my two other routers, I can see them from my Mac G5 laptop ( OX 10.5 Leopard).but they will not connect to internet or printer ..I can use only Mac Airport Exterem only for internet not printer .anyone knows why my other two router does not respond by the way other pc I have they are online wireless via my Linksys routers??
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