Problem Accessing Hotspot over Wireless Hop

Hi hopefully someone can help me.

I am having an issue with getting clients to connect through my Mikrotik Hotspot when they are accessing it via a wireless hop. I have 2 buildings, Building 1 has the Mikrotik and an AP which everything works on. In Building 2 if i connect to one of the AP’s i get an IP address from the mikrotik, but i am unable to get online through the hotspot. What am i missing?? Can anyone help?

I am using Ubiquiti AP’s and Ubiquiti Nanostation to bridge the 2 buildings.

Thanks
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