I seem to have lost the router password to my wndr3700 and I need to add a new portforward to my already large list, thing is, I know I can do a factory reset, but that will also lose all of my portfowards and other settings. Is there some way of resetting just the password, or saving the settings so that I can restore them after the reset?
The official Netgear answer is :
Unfortunately, there is no way to recover a lost or forgotten password from a router or access point; you will need to reset the device to factory defaults.
If you have ever taken a backup of your router's configuration, you can use it to recover the password using the Nirsoft RouterPassView :
The backup file of the router usually contains important data like your ISP user name/password, the login password of the router, and wireless network keys. If you lost one of these password/keys, but you still have a backup file of your router configuration, RouterPassView might help you to recover your lost password from your router file.
More than likely not possible (at least, easily) since the router doesn't have a way of connecting that wouldn't require you to authenticate. Without physically taking the devices non-volatile storage out and reading it, I don't think this is possible.
I know it's repeated a lot, but it's essential -- keep good, regular backups of both your data and hardware settings for devices with complex setups.