Hi, recently upgrade 2 Vigor 2860's to firmware 3.8.7_BT, and reconfigured site to site tunnels to use IKEv2. Both routers are experiencing tunnel drops/resets when time approaches 59 mins uptime. Notye, there are multiple tunnels, and will all reset at 1 hr.
These routers were working with little interruption when configured using ikev1. All tunnels are set to 'Keep Alive'
Has anybody else experienced these symptoms ? I am working with the Cisco supplier, who is unsure why the tunnel resets at 1 hr, but is seeing reports of 'rekeying'

Any thoughts?