5. TroubleshootingExpress5800/R120h-1M, R120h-2M Maintenance Guide 53Chapter 1 Maintenance5.6 Problem of OS Operation[?]Windows operation is unstable Have you installed Starter Pack? See "Installation Guide (Windows)" to install Starter Pack.If you restore the Windows from a backup tool, Starter Pack is needed to install again.[?]Cannot turn the power OFF at the blue screen (STOP error screen) Perform the forced shutdown (continue to press the power switch at least four seconds) to turn off theserver.[?]Unable to connect to a network Is the cable connected properly? Securely connect the proper cable to the network port on the rear of the server. Additionally, make surethat the cable conforms to the network interface standards. Are BIOS settings correct? With System Utility, you can set the internal network controller to disabled. Check the BIOS settings withSetup Utility. Have you completed protocol and services settings? Confirm that the network driver for the server has been installed and various settings, such as TCP/IPprotocol, have been properly specified. Are transfer rate settings correct? Confirm that the transfer rate and duplex mode are the same as those of the connecting hubs.[?]OS stops Using a latest virus scan utility, scan viruses. Check the event log. Check IML. In order that you can check when needs emerge, collect the information on NMI crash dump. Acquire Active Health System Log and inform the content to your sales representative.[?]An error message is displayed in the error log Follow the information displayed in the error log.[?]After starting Windows, the time advances or delays by several hours Is Time Zone of the RBSU correctly set? Check whether Time Format is set to "Local Time" in Date and Time of the RBSU. In addition, checkwhether Time Zone is set to "Unspecified Time Zone" in this case.If it is set to "Local Time" while not set to "Unspecified Time Zone," change the settings in the followingprocedure.