I also noted that when I was troubleshooting going back and forth, I would check Automatic Upload Speed, and hit save, it would ask on that page to reboot the server. Once it would come back up, it would still say Unknown, and not show up in the log. I tried to reboot it from: TOOLS -> SYSTEM -> REBOOT THE DEVICE for it to actually 'reset' and perform the measure. **Shrugs**
Yea, I read your post that you are better off setting it static, which I will probably follow suit as well.