PPPOE

Hi Everyone
My name is Paolo Ferrara, I manage a little ISP in Italy.
I have a CCR1036 where i setup a PPPoE Server, from a fiber i receiver pppoe request from my first customer, I assign profile and IP and works correctly.
Recently I have connected the second customer I receive pppoe discovery but PPPoE server not respond to this request.

With the Torch I see the PPPoE discovery 8863, the firewall on the other side ( Zyxel USG Flex 200 ) send request continuosly but no respond from the CCR.

The Customer arrive to me with a Fiber with different Vlan 101 and 102, I do a bridge with them. and I configure one profiles, two secret and one pppoe server, but seems that only one works for time.
Anyone know the solution ? Thanks and sorry for my bad English.
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