Ok thanks. So>
1. I disconnected everything, reset the Verizon DSL wireless router set to bridge mode. (The router is in the garage in a metal in wall box so not very conducive for conducting wireless).
2. Plugged in and connected the TC. Set Network Mode as Create a wireless network. Set Router Mode as Off (Bridge Network). Got the green light connection all good.
3. Plugged in and connected the Airport Express. Set to Wireless to Extend Wireless Network. Got the green light all good.
4. Plugged in the Airport Extreme. Set to Extend Wireless Network. Good. Greenlight.
5. Then all the sudden lost internet connection. So in Airport Utility the Internet light went yellow while all three others are Green for each of the routers.
6. Then I reset the Verizon router... after a few minutes the Airport Extreme went Yellow. Then the Internet connection came back. Then Express went yellow. Extreme back to green. Internet is in and out now.
7. On my iPad using airport utility all is green now, but on the desktop TC and AE are yellow triangle.. lost connection.
Help please!