user name and password wrong

What make of phone do you have.

When RC does their provisioning, they do sometimes alter the admin passcode.

If it’s a Polycom - use admin and 789

If there’s no IP - have you checked from Layer 1 on?  right cable, port, vlan, etc.  PoE set on port (if PoE)  And, I gate to ask this - but the correct port on the phone?  If you bring the phone back to a known good port, does it get an IP?

Did you update the phone firmware before doing the provisioning?  I know RC checks during that time and will downgrade in some instances.

Let us know the make/model of the phones.

When you say it came out ‘mint in box’ - from RC, or in general?

Can you get to the phones menu/settings area when powered on?  Have you done a reset to Factory?  I’ve had a few phones that while they say are ‘new’ - have had configs saved from another vendor.

Procedure:

1. Go to Menu > Settings > Advanced Settings (default password: admin) > Reset Config. On the T33P/T33G phones, go to Menu > Advanced (default password: admin) > Reset Config.

2. Select Reset to Factory Settings > Reset. The phone prompts you to reset the setting or not.

3. Select OK.  The phone begins resetting.

Tip: You can also long press the OK key when the phone is idle

 After reset, the screen prompts “Welcome Initializing…Please wait”. The phone will be reset successfully after startup. Note: Reset of your phone may take a few minutes. Do not power off until the phone has started up successfully.

If after the factory reset it still doesn’t get an IP - questions are:
… Do you have an ACL in place, and if so, did you add the phone MAC to that table?
… Have you plugged it into a port that had a phone on it - so you know it’s a good port/vlan?

Just curious.