Moving Servers – Addon Domains in cPanel

I am in the process of moving several wordpress blogs for a client. They are being moved to a new server and he wants them moved before he changes the nameservers.

The main domain is fine using the ip address after I move the database but when I try to move the addon domains, I’m getting a 404 error.

Everything looks ok but the homepage, which was created with a page (not a post) is not showing. I’m just getting the theme with a 404 error.

I’m accessing it like this https://xx.xx.xxx.xxx/path_to_addon_domain

Any ideas?