Check the following to identify the cause of the problem.

1. [There may be another device assigned with the same IP address, which may be responding to the "ping " command]
   Check the IP address in "arp -a" command, after send to "ping" command.
   Check the IP address of the devices on your network. If you find the duplicate IP addresses, assign a different IP address to one of the devices.
2. After you send the "ping" command, issue  the "arp -a" command, then, check the arp table to see if the target device has a proper combination of the IP address and Ethernet Address. If there is a duplicated IP address exists, in the "arp" table there will be an unmatched combination of the Ethernet address and associated IP addresses.
   
   
   
   
3. [Your printer driver on your PC may not be properly installed]
   Check if the printer driver is properly installed.
   If a printer port has not been assigned to the printer driver, set up the printer port using the Brother PS-9000 Utility.
4. [Check if there is any security software function such as firewall in the server or another network device]
   The security software function may be interrupting network communication with the product. Disable the function to see if the problem continues.