I've got a DIR-825 RevB Firmware V2.06NA on a static IP wan connection routing to a SBS2008 server and 10PC's. The server is serving mail, web, and files. Router has virtual servers setup for http, https, smtp, imap, imapssl, smtpssl, pptp, remote desktop, and a few others.
Everything works fine, but the routers https forwarding stops running periodically about half an hour after reboot. The server's working fine, but it doesn't see the https request, it looks like the router is trying to serve the 443 request itself. After a router reboot everything is back to normal.
I've replaced the router with another dir-825 and it has the same issue. Is this a known problem?