Loosing one-to-one nat about every 4 hours. VPN's stay connected, can log into router remotely. outbound traffic works, cannot reach servers from wan. No entries appear in log file about failure. Switch between Smart Link Backup, and Load Balance, then switch back, and one-to one nat works for about another 4 hours. Swapped out router, but used existing config file. Same problem. Waiting for after closing to swap back old router, with hand entered config, and 1.3.9 fw. Any suggestions? *********** reentering data by hand fix issue.