QoS Not Working XR500 in DumaOS on NETGEAR Nighthawk Support Posted September 11 Not to keep this issue open, but the backup wasn't the cause of my initial issue. It was an extra problem because of the reasons you mentioned, but the bandwidth was not working properly before I upgraded the firmware. This has happened in the past with the bufferbloat sliders/percentages not functioning and I never used a backup after a factory reset in those times. I tried this time and learned to not use backup to a previous firmware. What's bothering me is that this is an intermittent issue I've encountered before, and the only way to fix it is with a factory reset. Is it possible for you to remotely link up to my router the next time this might happen? Thanks again for the help. All is working now- fresh start on latest firmware.