Hi Mp;IsBob.
Thank you for using the forum. I see that you are new to the forum and to Xerox. That is great. I thought I would try and help though I am not very technical and usually rely on our community members to assist with answering posts.
I am not sure that you are aware of the knowledge base that we have for your product at http://www.support.xerox.com/support/workcentre-3210-3220/support/enus.html?operatingSystem=win7&fileLanguage=en
The User guide may help. It can be located at http://download.support.xerox.com/pub/docs/WC3210_WC3220/userdocs/any-os/en/Guide_EN.pdf
Pg 27 discusses how to restore the network configuration to the default settings and pg 29 discusses the basic settings.
I hope this helps.
Other members of the community may also have some suggestions.