I had a data center that had 2 WAE's running 4.0.1c and a single edge WAE running 4.1.3a. Everything ran fine. I upgraded the WAE's at the core to 4.1.3a this weekend and now the edge WAE that was already running 4.1.3a will not peer. WCCP is established locally. The core WAE's in the data center are peering with WAE's in another data center just fine. I am getting ZERO TFO connections on that edge WAE.