I have a new TL-WR902AC that i'm trying to get working, and struggling.

I did have some success whenI connected the router to my phone in hotspot mode, but it seemed to take a long time to work (may be iphone related).

I followed all the instructions to put it into client mode, connected to the 2.4 SSID (Cisco Aironet AP; I don't have control over it), and the light on the box says it's connected.

Going into diagnostics once it says it's connected, and I can't ping 8.8.8.8 or any internet host but can ping internal hosts that it's allocated DHCP leases to.

Are there known issues of this connecting to aironet installations?  I've tried with both smart DHCP and static, neither work.

I did notice that when I setup the iphone hotspot and got it working, it did change my DHCP lease and allocated me an IP from the phone, should it be?

I've also noticed the connection to the aironet seems to drop out a lot (light flashes every 5-10 minutes).

Any help appreciated. This is new out-of-the-box and needed ASAP.