Many users still can't connect to Xbox Live on their Xbox One consoles which means they can't accept the mandatory day one update. Microsoft is now offering a Offline System Update Diagnostic Tool to resolve the problem. Microsoft does warn that this tool should only be used to troubleshoot consoles that are having problems downloading the day one update. " The diagnostic tool should only be used to troubleshoot a console that’s having trouble downloading the system update from Xbox Live. Please exhaust all other troubleshooting before attempting this process, as the diagnostic tool file is a very large file and this troubleshooting process will take considerable time to complete. Troubleshooting can be found on Troubleshoot system updates on your Xbox One console " If you are having trouble downloading the update and wish to use the tool you will need to have a 2GB USB stick formatted to NTFS. Offline Diagnostics tool
