IBM 6648 User Guide - Page 92
Device troubleshooting charts
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Page 92 highlights
M35: TFTP timeout. M38: Cannot open TFTP connection. M39: Cannot read from TFTP connection. M40: BOOTP canceled by keystroke. M40: DHCP canceled by keystroke. M41: BOOTP timeout. M41: DHCP timeout. M42: No client or server IP. M43: No bootfile name. M44: Cannot ARP redirected BOOTP server. M6f: System is locked! Press Ctrl+Alt+Del to restart. M90: Cannot initialize controller for multicast. M91: MTFTP canceled by keystroke. M92: MTFTP open timeout. M93: Unknown MTFTP opcode. M94: MTFTP read canceled by keystroke. M95: MTFTP timeout. M96: Cannot ARP MTFTP address. M98: Cannot open MTFTP connection. M99: Cannot read from MTFTP connection. Txx: Note: An x value that follows an error code represents any alphanumeric character. Device troubleshooting charts You can use the troubleshooting charts in this section to find solutions to problems that have definite symptoms. Important: If you find it necessary to remove the computer cover, first read "Safety information" on page iii and "Removing the cover" on page 45 for important safety information and instructions. If you have just added new software or a new computer option and your computer is not working, do the following before using the troubleshooting charts: 78 User Guide
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