AP connecting to Fritz 7490 issue

Hi All,

I have a 7490 fritz box now everything works well apart from when i connect my D Link 850L AP to it the AP works for about 10mins then stops working for about 10mins then starts again.

I tried another router and i don't have the same issue so it makes me think the fritz box is blocking something.

So i did some digging and ran a SYSLOG on the Dlink and found it came back with:

Message 13: nameserver

192.168.178.1 refused to do a recursive query

That was the only error i got.

So im stumped i have turned of DNS relay from the Dlink ap 192.168.0.1 and set manual dns servers same thing.

Ideas? this is the last if i can get this working it will be a solid network.

Thanks in advance.