I cannot change default password

Prosafe  

it's a managed switch.

I took everything out of the box mounted in my rack powered it on. I then when using the web ui loggedd in using password as password. I get in tells me to register your product. I click to register it.  It tells me to register it and then proceed. I click register but nothing happens so I then click the X in the upper right of the window and it closes it. I then went to change password 

In old password put the old password as password.

Then I entered new password in the newpassword text box and same with repeate.

After I click enter or apply I get a window saying this:

The Password cannot be updated. No such user admin

when I  click the link to register it says it cannot connec t to the registeration server and said that check your in ternet connection. My internet connection is fine. I registered going on netgear website and I put my serial number etc and registered it that way.

I clicked factory resets the hard button. Thinking this would clear evyerthing and start over but now I login with password password and I g et a promt  to make a new password and about maybe 1 minute later the window changes to  cannot connect to the registeration server and to please check my internet connections. I then check if I have internet and I do. However, I am now stuck  and I cannot change the default password. I check the fourms and most say the characters they used is not permitted. 

I used a ! in the password. So, ,I just used a plain like Password54 and still I get the same message. Any ideas?