You can't just change internet service providers without doing a hard reset of the slingbox. ( hold the reset button on the slingbox down for 30 seconds) and re-run the sling setup to pair it with your new ISP / router.
Hello Changed the service provider from timewarner to ATT. I get video but can't change channels. It seems all the channels are set to Time Warner. Is there a way to change the service provider so the channel guide gets updated as well? Thank you