I've a strange problem. On a remote site, I upgrade 2 VG224 with IOS 12.4(24)T1. I upgrade first, it's OK. But when I upgrade second VG224, my LAN is KO and routers Bintec (manage by Orange Business Service) reboot. I don't understand why.
It is very strange because before, I upgrade 10 VG224 and all is OK.