Hi Friend,
We can not fix the issue with the topology, please share the following,
1. Did you configure the gateway in the controller (7005) to confirm use "show ip route"
2. Check whether APs also having gateway configured properly
3. If both Controller and AP are configured with GW check whether they are able to PING their GW
4. Disable STP in Aruba Controller globally and on the uplink interface.
Please feel free to comeback with the above. let us fix the issue.