I have first updated the TP Link v2 to OpenWRT. This was the result after.

Then i bought the dslrdashboard App from the App Store.

Then I connect the camera with the TP Link (Switch Position AP) and turn it on. All four LEDs are on now.
Then I change on my iPad the WLAN Connection from my Home Network to DSLRController, the new name of the TP Link.
Then I start the App and press the Canon Connection Button. For two seconds the App try to seek my Camera, but nothing happens.
All the other Buttons are not useful in my situation and have the same result.
How can i get the connection?
Thanks for help in advance.
Giovanni