Rb3011 and rb951 wifi bridge no internet

Hello:
I have a Rb3011 and a RB 951hd connected to the Rb3011 in bridge mode to give wifi to the network.

Everything worked fine, but now the WiFi has no internet,
Rb3011 gives ip to the wifi connections but without exit to internet.

Perform a reset and a system reset to Rb3011 and Rb951hd, and reinstall the files backup.

But do not fix the problem.
The lan network of RB3011 if it works well.

What tests should I take to find the problem?

Thank you