IPsec Advanced Settings issue.
In my continued troubleshooting of getting a tunnel working between pfsense 2.2.1 and a SonicWall Pro 2040, I've been digging into the advanced settings in pfsense. Under "Unique IDs" there are options for "yes, no, never, keep". No matter which I select and save, when I refresh the page the selection returns to "yes" and cannot be saved. I've checked this in both Firefox, Chrome, and IE, in order to rule out a browser issue.
In my situation, I have tunnels marked as up on both ends but am unable to pass traffic other than one, solitary, ICMP echo request followed by time outs between the two sites. Oddly, I didn't have this problem with 2.1.x