公司的网域用户在加入域的时候不能保存和读取设置是怎么回事?

因为你们公司启用了强制漫游配置

如果你用的是xp 2000或则2003，请参考微软的官方解决办法：
1. Examine the DNS settings and network properties on the servers and client computers.
2. Examine the Server Message Block signing settings on the client computers.
3. Make sure that the TCP/IP NetBIOS Helper service, the Net Logon service, and the Remote Procedure Call (RPC) service are started on all computers.
4. Make sure that Distributed File System (DFS) is enabled on all computers.
5. Examine the contents and the permissions of the Sysvol folder.
6. Make sure that the Bypass traverse checking right is granted to the required groups.
7. Make sure that the domain controllers are not in a journal wrap state.
8. Run the dfsutil /purgemupcache command