NVRAM60K The RT-N16 has only 32k of usable NVRAM: Code: Analysis of NVRAM flash partition 131072 NVRAM partition size (mostly unusable!). 98304 Unusable initial portion of partition. 32748 Total usable NVRAM space (after 20-byte header). 25809 Actually used NVRAM space. 6939 Free NVRAM space (approx). 984 Used NVRAM variables. From nvram command (not from flashed NVRAM), includes uncommitted settings: 984 entries, 25830 bytes used, 6938 bytes free. Checkbox "Avoid performing an NVRAM commit" do not solve this problem. Why would it? The damage was already done when you flashed the wrong firmware.