attempting to setup a lab with a one way trust. Each segment has operational domains. They are connected via two way route rule on the router for all ports. Each of the DCs can ping one another but the wizard stops with a very uninformative "cannot continue". I've reviewed the windows events and nothing is recorded there, I was wondering if there is a log file somewhere I can review?

both domains are 2008. both have forward and reverse DNS entries for each other. Based on the Microsoft article conditional forwarders are not used for 2008.