Multi WAN not functioning on CE 2.51
Similar to pfsense+ #11436 and CE #11805. Upgraded customer from 2.4.5p1 to CE 2.5.1. Network has 2 x WAN and 2 x LAN. Immediately after upgrade the non-default gateway (which was a SIP trunk) stopped functioning. Even though all traffic for this gateway specifically defined with that gateway 1/3 to 1/2 of packets never arrived back on that gateway. If I pinged the SIP server on that gateway the returns from the ping only arrived back 1/3 to 1/2 the time. Downgrading back to 2.4.5 allowed the gateway to function again.