I think most of the posters here are confusing a router being compromised with a denial of service (DOS) attack. A DOS attack floods internet connected equipment with garbage. It's not intended to compromise anything, just keep it so busy that it can't handle anything else. Sort of like ringing a victim's fax machine every few seconds. Regarding a DOS attack, I'm afraid you're probably out of luck. The best I can suggest is update the firmware on your router, and hope it handles DOS attacks better, by throwing away the garbage quicker. Most modern and fully patched routers handle DOS attacks gracefully. For instance, Microsoft and on-line retailers are frequent DOS victims. It's likely an attack from a "zombie." Most zombies are compromised Windows PC's, taken over by a hacker for nefarious deeds. The poor sap at 146.82.201.101 probably doesn't realize their PC's been compromised. You should count your blessings that it's not a coordinated attack, from hundreds or thousands of PC. Typically after some time passes, a hacker will look interest and shift focus onto a different target.