NVG510 Won't Allow User to Connect via PIN

Your first sentence seems to indicate that you have covered the usual areas of failure. The question is why do you need to use the PIN?

The purpose of WPS is to simplify or auto-discover the security key when connecting. You can connect manually (without WPS) if you enter the security key when requesting access via the Toshiba. You use WPS so you do not have to enter the security key. So, why replicate those same steps with another PIN?

When you exercize WPS by pushing the button without a PIN the two devices can connect automatically for only a very short period. Unlikely that anyone eles can sneak in.

So, try it without a PIN. Which WPS do you press first? Toshiba first, modem second? If that does not work try the opposite.

You can push the WPS button while on the modem gui with a mouse click, but you need the password for the gui. Yet another number.

After trying WPS without PIN you could try with PIN. Again, which comes first. Seems like the PIN should be prepopulated in the modem, waiting for a WPS access request from the Toshiba, wher you enter the same PIN.

With WPS set up in both boxes, push the WPS in each. First one order then the opposite, if necessary.

Of course, if an attempt fails you need to wait for it to time out before trying again. I guess when you get the failure message it has timed out. But, have both devices timed out?

Since there are three different codes involved in these steps, make sure you are using the right one for each step. Which raises the question - You are selecting the correct network on the Toshiba?

It is very complicated & I am  at arms length because I do not have your equipment & did not know your priorities.. I would like to follow up with a few more comments.

Your number four is what I call manual access because you use the wizard in your computer, instead of WPS, to connect. You do not trigger the WPS button & you do not use the WPS PIN.

The disadvantage appears to be that you expose the wi-fi key. But, with WPS the wi-fi key is stored in the computer & a knowledgeable person could exreact it? At least, they can always join your network til you change the password.

So, why not turn off security for the short time they would be connected? Or, set up a simple password for that time? To me, that is the simplest & most secure - An open to visitor Wi-fi key and a lockout version. You only open the open value when you want to grant access & you use the lockout version all other times.

With WPS, the connectability is only open for about a minute. The odds of someone trying the same WPS for that minute make it very unlikely. Once you have access(via WPS) it is a possible connection in the computer. To close the door again, you need to change the wi-fi key.

The PIN is a function of WPS, so WPS would have to be on & a PIN entered in the modem (indicating one is required) When pressing the WPS buttons on the two devices, it should work the same way as without a PIN, except that the computer PIN must match the modem PIN.

Exactly how/when the PIN is entered I do not know, because I did not think it was worth exploring. Could it be that the computer or the modem, or both edit the range of the PIN. You would have to find a value that stisfies both edits. Remember the WPS process is onlly active for less than a minute.

When you talk dongel, you are talking on the computer? Can you provide a reference link, so I can learn about that?

If I had your case I would use the two password (wi-fi key) mentioned above.

A "dongle" is the slang name of an external device which typically plugs into a USB port; e.g. a WiFi dongle, or a Bluetooth dongle, or in this case, a WPS dongle.  Obviously I have little knowledge of WPS or else I would have figured this all out at the very beginning, but my reading tells me WPS requires some piece of hardware on the connecting device, so I chose to suggest it would be a "dongle".  Suffice to say it's hardware, whatever kind, and not all (few?) PCs have it.  Bottom line: MY guest PCs don't, so connecting via WPS is not an option.

As to setting up a temporary password instead of using/giving out my key, well, that IS an option, but I would rather avoid having to change my key to allow someone to connect, then change it back to my key so I don't have to remember or write down the new password/key each time.  My former AT&T DSL modem allowed guests to connect by assigning them a password, (without affecting/changing the key) and I didn't realize (until now) that this UVerse modem doesn't.  I had assumed that was what the WPS function was - which of course it isn't.

New Bottom Line: Now I know how to allow users to connect to my WiFi network, and how useless AT&T Support is.  Forum memembers, however, stimulate thought.