We have a server (BL460c) that we upgraded the drivers and firmware on and now it is rebooting every couple hours. The Event Log has a warning with an ID of 57. The description is "NetFN 0x36, command 0x2 timed out" This is solved by downgrading both iLO drivers.
1. HP ProLiant Integrated Lights-Out Management Interface Driver for Windows Server 2003/2008 x64 Editions to version 126.96.36.199
2. HP ProLiant iLO 2 Management Controller Driver for Windows Server 2003 x64 Editions to version 188.8.131.52