Installing from USB stick

Following the instructions on linuxcnc.org/docs/html/getting-started/getting-linuxcnc.html, I've tried tree times.
It seems to install ok, but it doesn't detect my wireless network, so I select configure network later(or words to that effect).
I complete the process, but on rebooting it never recognises my password.
A comment I have read elsewhere, suggests that it will only work if I have a lan connection to the rest of my online system.
Is this correct, please?
going to get a very stiff drink.
John

NO
you can have a install without any Network at all and all mashine configs will work as you expect

the PASSWORD is the MAIN Thing on Linux
so choose a one you always remember

and do not Update to anything
the ISO is ready for 95% of all install mashines

The password problem you have is that the user password or the wifi password ?

Ok I'll need the exact make, model, pci id of your wireless adapter.

If can login with your user password from a terminal run
Additionallyand make a note of anything mentioning missing firmware

Usually no wifi is just a missing driver and or firmware

Thanks everyone for trying to help, but perhaps I need to start my questions in a simpler way.

The hdd of the Dell I am using has been formatted, so nothing on there.

I used www.linuxcnc.org/linuxcnc-2.7-wheezy.iso as a download using zsync, and copied onto my 8Gb memory stick .

I tried it as a live boot, and used it to do a latency test, which is good, <10,000 ns.

I then re-started and did a graphic install, and the only hiccup was it didn't recognise the wifi connection through my usb dongle, when it sid it couldn't detect a network, and I opted to set up the network later.
It asked for a password which I entered ( and yes, it's written down to make sure there was no mistake.)
It finished the installation, and when it re-booted, and asked for my password(nothing to do with the wifi), it didn't recognise it.

Note - when I entered it, and hit login, it cleared the password, so having waited some time, and nothing happened, I tried again. This time it told me it was an incorrect password.
This is where I am at the moment.
I'm now going off to Walmart to buy a lan line long enough to get from the garage to my router, and I'll go through the whole process again.
Unless, when I get back, someone has offered a solution.
Regards,
John

You must enter USER then PASSWORD

Thank you for that clear and simple solution.
[Makes deep bow]
I hadn't spotted that the first request said "Login", then the second time it asked for a password.

Regards
John

I'm sure I'll find a use for a 25ft lan cable !

Been there - done that

Final question here on this topic - reading the instructions on the link above in my post earlier today, is says in point 5, Updates to Linuxcnc " Warning Do not upgrade the operating system if prompted to do so."

Is this only during the installation process, and that I am able to update later, but not upgrade ?

John
EDIT
Too quick, I'm afraid.
Can't detect usb with lsusb - in terminal "command lsusb not found"
Can't install usbutils - no connection !

You can run "apt-get update" & "apt-get dist-upgrade" (the safer option as opposed to upgrade) but you need configure you apt sources and adding a conf file.

So until you get a lan connection you can't install anything.

Does your M\B have a ethernet port ?