I've always wanted to set up wireless printing for my Brother HL-2170W, but I've never quite figured it out. I'm close. So I found and entered the IP address. The remaining issue is the password for authentication [screenshot attached].

It's probably only because I tend to miss the obvious, but I'm not sure which username and password the system is asking for; where I need to look for it (if only in my head--it's probably a password I know). I just found the HP support site (http://support.hp.com/us-en/document/c03112291); it seems to clearly indicate that this would be my network password. If that's the case, fine--I know my network password. What I'm not sure about is actually the username. What's that supposed to be? I just tried the name of the network for the username, and unless I made a typo repeatedly (I hate it when you can't make your typed password show), it didn't work--access denied. So...where do I find the username?

Attached Thumbnails

 

What distribution/version?

How is the printer connected to the network?

I configure my printer using either a static IP address via router's DHCP reservation and use a URL like via cups web setup like:

socket://192.168.0.10:9100 (direct connection)

Since you are printing using smb it expects a Windows domain username and password to authorize access to the printer.

https://en.wikipedia.org/wiki/Windows_domain

Actually, I doubt hat the samba protocol is the right one to connect to a network printer.

If you have nmap installed, you can check what ports a given device is listening on. In the case of a printer, that information will then tell you the likely printing network protocols supported. So, for your printer at 192.168.1.17 you could do
If you need help to understand the output, post it here for others to advise further.

Typically, Brother printers support the LPD and AppSocket network protcols, so you could try using the following
or
FWIW, I have a Brother network printer defined by it's hostname (instead of IP address) with the following URI

It's MX Antix 14. The printer is connected to a wireless network. (Sorry, did you want something more specific?)

Thank you! Notwithstanding Ferrari's advice (I'll try the other protocol), that's what I needed.

The socket protocol advice should be all you need. I just gave you a more in-depth information to allow you to detect supported protocols.

Is the printer's wireless settings already configured etc?

Should be. I haven't done anything to the printer's manual settings recently, but I followed HP's instructions last time i tried to set up wireless printing. If I understood correctly, the instructions said to reset the printer's own IP address to 0.0.0.0, and I did. (Had to push and/or hold down the ready button for a certain period of time to blank the address.)

Got a page not found error but not sure how it would be relative to a Brother printer?

[forehead slap] Well, that's my fault--I failed to notice that that wasn't Brother-specific information, notwithstanding that the information on passwords should be the same in principle.

Last time I tried to set up wireless printing, I think I used this: http://www.brother-usa.com/faqs/static/ale_17463.pdf

I do not know what the HP page had for password information but typically the username and password would either be a valid samba username/password on a linux box or the username/password as setup for a printer shared on a windows PC.

Nmap says:
Is that what I should have expected?

My HL-2170W
PORT STATE SERVICE
21/tcp open ftp
23/tcp open telnet
80/tcp open http
515/tcp open printer
631/tcp open ipp
9100/tcp open jetdirect

I need to go check the web configuration...
netbios is enabled not sure why 139 and 445 did not show up in the output.

rpcbind? Is 192.168.1.17 the address of the printer?

The IP address shown in the attached image (opening post) was 192.168.1.17, but like Michael is questioning, is that really the printer IP address? I would have expected similar to the output he has shown.

port 515 --> LPD protocol
port 631 --> CUPS/IPP protocol
port 9100 --> AppSocket/JetDirect protocol

BTW, you've mentioned the HP support pages a couple of times, but in your opening post you mentioned that the device in question is a HL-2170W ie Brother laser printer.