User guide

Appendix F: Troubleshooting
283
Problem
Solution
Upgrade failed in dual-LAN
units
While upgrading dual-LAN units from 2.5.x versions, an error
message appears stating "The upgrade has failed. Check your
upgrade directory and/or your connections, and try again.". (See the
figure below for details.) In order to properly complete the upgrade,
do not reboot the unit when the message appears, but re-apply the
upgrade pack again.