I have been losing connection to the router login (192.168.77.1) every day or two at random times for 3 weeks, i would usually notice this because my ping is low in game which means steady ping is not working due to my ping not being 5 or 10 higher. I read on the forums that it might be SmartBoost causing it so i disabled that, day later router crashes again. After reading about other peoples similar issues in the forums I finally got the router to work without it crashing while the smartboost is active, i found that these 3 are causing crashes. DMZ on a device, leaving steady ping on too long and logging in dumaos using r3 wifi. I deleted my dmz device, use steady ping only when gaming then turning it off after im done, i turned off R3 wifi and used another router on AP mode as wifi to access dumaOS with my phone, no crashes since i changed these settings. If your router stops working and you cannot login router can you please post what default settings you have changed.