Trouble Beginning Asterisk

I have this SIP.CONF file
[general]
ndport:5060
bindaddr=10.1.1.3
context=default
allow=all

[2000]
username=2000
type=friend
secret=2000
host=dynamic
canreinvite=no
bindporta5060

When me try to register from X-Lite Phone, in asterisk console we see this error

May 27 08:49:51 NOTICE[2200]: chan_sip.c:11242 handle_request_register: Registration from ‘"2000"sip:2000@10.1.1.3’ failed for ‘10.1.6.214’ - Username/auth name mismatch

How can fix this

Based on your sip.conf, do you have ‘Authorisation user name’ set in your X-Lite set up? If so, leave that box blank, save the settings and try to re-register the phone.