This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
Posting in this older topic in case other folks search here...Same issue with my 857 following a sudden power outage in a storm. D-Link and all circuits well protected. I found the router clock time had been set back to September 2012. Re-set the time (used the link to sync with computer time), re-booted, and both signals came back on. All is well and functioning as if nothing ever happened.