Stephen Harrington
Very Senior Member
It's always a good time to learn . At any rate, when you makes changes in the UI it just modified the NVRAM values so there is little chance that you will screw anything up during the next firmware upgrade. If you are worried you could always make a note of the values that you changed and before you do a firmware upgrade change them back. Or since there are really no configurations to the nodes you could always factory reset them pretty quickly. The properties mentioned are either on/off so 1 = on, 0 = off. You can also compare values between your main router where you turned WPS off and the nodes where it isn't by using the command.
nvram show wps_enable
nvram show wps_enable_x
You should see that on your main router they are both set to 0 and on your node they would be set to 1.
For my RT-AC68U at least, the commands that work are:-
nvram get wps_enable
nvram get wps_enable_x
StephenH