Solving wget curl NTLM Unauthorised Issues

curl https://URL -v --ntlm --negotiate -u DOMAIN\\USER:Passy\$

Notice the escape \ characters used in the username and password.

So, if your user is DOMAIN\USER use DOMAIN\\USER
If your password is Passy$ use Passy\$


wget -c --http-user='DOMAIN\USER' --http-password='Passy$' https:URL -dv --no-check-certificate

For wget, enclose the username and password in single quotes