Toshiba Laptop Will Not Connect To Wifi

I found functional Toshiba Satellite A65 notebook?laptop in our house.
Outside of being old, it works fine. I decided to revive it for 2nd laptop work use but, it will not connect to wifi.
It hangs either on "waiting on wifi" or "can not obtain credentials" messages.
I spent about 2 hrs yesterday, going through every internet trick for W XP I could find, to make wifi work. No mas. Wifi adapter shows as properly working, at some point, I had it connected to WIFI but it never asks for password and, as such, there is no internet connection.
I rebooted machine to the earliest restore point I could find, same thing. It will not ask for password. It recognizes all wifi networks around me, shows them as secure, but will not ask for password and I can't figure how to enter it manually.
Again, I did EVERY trick I could Google for Windows XP. Same story - can't enter wifi password. Unfortunately, ethernet cable is not an option where it will be positioned.
Any ideas, how I can manually enter WiFi password?

 

I ma messing with it again.
I am connected to wifi netwrok but, it is asking for the network key.
Netwrok key on the router or normal password I use both throw:

the network password requires to be 40bit or 104 bits depending on your network configuration...

And I am stuck there. If I enable IEEE 802 1x authentication, it hangs, as previously described. Everyone online says to have this box unchecked?

 

OK, so I went as far as to connect my PC via Netgear adapter to wifi. I locate the network key, W XP is asking for. On PC, it shows as my regular password. So I am stuck on W XP asking for some sort of 40 or 104 bit encryption key?

 

It's Motorola modem/router.
Atheros 500 4G is wifi adapter

Anywhere I look in modem it only shows my normally used wifi password.

 

I just checked in adapter network settings and yes, it recognizes only WEP protocol. So, basically, it's either ethernet or forget wifi with modern modems, unless I have an old one at work that still runs WEP protocol? I'll be there Tuesday, I'll see what I can figure.