R81.20 first time wizard Gui setup error

[Bhautik]

seen this issue many times with R81.20 First time wizard gateway setup. during initial setup accessing gateway through public IP, wizard  Next option grayed out, cant complete the setup. Had to connect internally and access the wizard using internal IP then able to setup the gateway. 

Also new admin password set during first time wizard  it wont take effect, its accepting only  default credential admin/admin. 

[Lesley]

Could it be, due that this is the internet connection it it checking if the link is up / working? 

Is in fact this internet link working or not? Normally I always skip this step and configure it later. 

[Tal_Paz-Fridman]

Usually when Next button is disabled (grayed out) it is because you have not filled all the available fields (or active fields).

It might be that a user-friendly validation is missing. Let me know if this is the case.

[the_rock]

I never fill those things out (specifically THAT SCREEN, at that point). Try leave as defauls and see if it lets you contunue. You can always edit after the initial setup.

Andy