Loss of communications with MS, tune page features not working - WKB58627

SYMPTOMS

• "No instrument" seen in MassLynx instrument status window
• Mass spec not present in console
• Unable to connect to EPC via telnet prompt
• Unable to ping EPC

ENVIRONMENT

• Xevo TQD
• 3100 Mass Detector
• ACQUITY SQD system
• SQ Detector
• ACQUITY TQD system
• TQ Detector
• SQ Detector 2
• Xevo TQ MS
• Xevo TQ-GC
• Xevo TQ-S
• Xevo TQ-S cronos
• Xevo TQ-S micro
• Xevo TQ-XS

CAUSE

Corrupted host file                 

FIX or WORKAROUND

1. Power-down ACQUITY system.
2. Remove all instrument modules from Waters DHCP server configuration. 
3. Power-on sample manager or column manager, wherever the Ethernet hub is located.
4. Confirm that sample manager/column manager populates DHCP.
5. Power-on additional ACQUITY modules one by one if required, ensuring that they populate in DHCP.
6. Reboot MS using reset button. Wait about five minutes for the MS to populate DHCP (IP address, type, and name).
7. Check that the host file (C:\Windows\System32\drivers\etc\hosts) has the correct EPC listed at IP address listed in DHCP. Modify as required.
8. Launch MassLynx. Check console for all modules of ACQUITY stack and applicable MS. 

ADDITIONAL INFORMATION