I recently changed internet providers, switching from DSL to Cable. During the evaluation period, both routers are active, so I've been able to do a direct comparison. I have no problems connecting from the DSL router to my Slingbox HD, but when I try connecting thru the cable router (either wired or wireless) I get an error message:
"Your Slingbox has been disconnected because of an internal error or poor Internet connection. Click on Reconnect to try again.Click here for more information. P-16"