I have tried to record a script, it recorded successfully the rebooting, I saved the script. But the testing failed. I tried to record a script in raw mode, recorded the rebooting successfully, I saved it, test failed also.

The new Speedport routers like Hybrid or Smart e.g. use a random key that recreates for each login. Therefore, recording the reconnect does not work. Probably the Entry also works with such a random key.