How I can change the Username itself, not just the password.

alexthefool wrote:
Frankly, no need to try the username is half the way to crack in the router.

That’s not correct, you are confusing Identification and Authentication, the User ID is as implied - an Identifier.

I work on Secret networks, if you were able to walk into my office and access a computer you would be able to enter my User ID without any problems (or anyone else in my office), it’s my name. That’s common for many networks.

The reason that the router does not have a changeable admin ID is that it’s not the kind of device that would have multiple administrators, so maintaining a record of the current Admin ID would be a wasted effort.

Here’s some links, there are thousands of similar links if you search for something like “What is the difference between identification and authentication”

https://technet.microsoft.com/en-us/library/cc512578.aspx

http://science.opposingviews.com/difference-between-identification-authentication-3471.html

http://security.stackexchange.com/questions/10933/difference-between-authentication-and-identification-crypto-and-security-perspe

http://www.infosectoday.com/Articles/AU5219_C01.pdf