Apple IOS Problems with devices usind AWS

Hallo,

I ve problems using my IOS Devices in my personal network.
Everything is working fine when connecting the devices using an avm-wlan-router type 7270.
The problems are when using the aws-acces-point:
- direct printing using apps from brother doesn t work
- privat sharing of itunes is unstable and disconnected often
- the apple remote-app often says that privat share isn't configured

There are no rules active, nothing is blocked and websurfing is working.

Has anyone hints how to identify what is going wrong.

Thanks

Ralf