Chapter 4: Diagnosing faults 225Meridian Link Release 5C/CCR Release 3C Diagnostic and Maintenance Guide9 Check the Application Module MVME333-2 XCC card jumpersettings as follows:• Perform Procedure 3: Hardware powerdown.• Perform Procedure 11: Replace the MVME333-2 XCC card(without actually replacing the card).• Perform Procedure 4: Power up the Application Module or IPEModule.TCP/IP host computer link (Link 1) will not establishThis section applies to Meridian Link only.The following section describes the steps to take if the TCP/IP Host Linkbetween the host computer and the Application Module or IPE Moduledoes not establish.Check link status from the Meridian Link.• Log in as mlusr. If unable to log in, see the section “Login failure”earlier in this chapter.• Check the status of the link by typing status link 1 in the mlusrprompt.If the response is “Link 1 : Up”, the Host Link is properly connectedand the problem is not the Host Link connectivity. Make sure the hostapplication has properly registered (see “Application registrationfails”).If the response is “Link 1 : Enabled but down”, it is possible that noapplications are registered.— Perform a loopback test as described in Chapter 3, “Linkmaintenance commands”. If there is no response to the pingcommand, contact your system administrator.— Restart the application.If neither of the above steps gives you the message “Link 1: Up”,contact your Nortel support personnel.If the response is “Link 1 : Disabled”, enable the link by typingenable link1 in the mlusr prompt.