I purchased two of the DIR-510L routers at the same time, one to keep with each of my laptop computers. Both units have the same problem of the status light turning red and the management interface becoming non-functional while the Internet connection remains available. Both units that I received shipped with 1.06 firmware. Both units were received in early April, 2016. As a part of the diagnostic effort, I performed a factory reset on one of the units using a paperclip for the reset button on the side. It required me to reload the firmware image after the reset. I reconfigured the unit by hand following the reset (not using a saved configuration file). None of these efforts made any difference. The LED still turns green after a power cycle, but turns red afterward and the management interface becomes unavailable when that happens.