Bonding over 3 wireless links help

I just set this up for a customer of mine, I have 2 of the 5 gig port black metal box routers, one on each side, 3 ubiquity wireless point-2-point links. and 2 weeks after setup the link stopped passing traffic. All i had to do to fix it was unplug the 3 links from the router A and it came back up. I have the bonding set up as the 802.3ad with 100ms down delay and mii interval 50ms. The customer wants to use the links redundantly for as much bandwidth as possible and also have redundancy. are there settings that i should use for this? and any ideas why this link failed?

Thanks