Solution:

1. At first, the network function in Windows CE 2.1 only support DHCP service for TPC/IP. User need to hook up 10 BaseT/100 BaseT cable to RJ45 socket before power up. Your network environment must have DHCP Server. Before test the Windows CE network function, you may use another Windows NT Workstation/95/98 test test your DHCP server. If the DHCP server can allocate IP to the clients, then you can go on the Windows CE network test. Example: You may use a Windows NT workstation as a DHCP client to get an IP address from the DHCP server (command IPCONFIG /renew). If the Windows NT workstation can get a IP address, your DHCP server should have been intsalled properly. 2. After Windows CE bootup, under CMD (command) prompt, type 'control' to execute Control Panel function. If CMD prompt is not working, press Alt-Tab or Ctrl-Esc to switch to task manager and then RUN 'CMD' to invoke command windows. 3. Click Communication and change the Device Name 4. Close Control Panel to back to CMD 5A. You can use net command to use network resource. Example: net view \\SERVER1 (SERVER1 is one Computer name on your Windows Network.) Example: net use test \\SERVER1\TEST The test directory will be under \NETWORK directory (TEST is a share under SERVER1.) 5B. Or use UNC name to use the network resource, Example: "cd \\SERVER1\TEST" UNC name Universal naming convention name. A full Windows NT name of a resource on a network. It conforms to the \\servername\sharename syntax, where servername is the server name and sharename is the name of the shared resource. UNC names of directories or files can also include the directory path under the share name, with the following syntax: \\servername\sharename\directory\filename. Notice (Only for PCM-4823) We found the earlier PCM-4823 Windows CE we released has a mismatch mistake on Network IRQ and I/O address setting. We apologize for the error. Please make sure the onboard network of PC