VPN reconnecting

[SupportAC]

We have configured a new vpn with an external branch in an ASA-5510 over IKEv2. The VPN connection is reconnected exactly every 2 minutes and 46 seconds. I have taken many traces / debugs but I do not understand what is happening. The most significant thing I've seen:
IKEv2-PLAT-1: (298): Rejecting child SA with the same traffic selectors as existing child SA - local protocol: 0 local selector: 10.1.1.0/0 - 10.2.4.255/65535 remote protocol: 0 remote selector: 10.200. 13.0 / 0 - 10.200.13.255/65535.

Why the VPN is reconnecting every 2.46 mins???? any idea?

Thanks

[Rob Ingram]

Hi,
Can you provide the full configuration of both firewalls please?
Can you provide the output of both commands "show crypto ikev2 sa detailed" and "show crypto ipsec sa detailed".
When the tunnel is briefly up, can you ping or access anything on the other end?

[blradmin]

I have tried sever relogin to VPN but SA Child is not getting clear.Most of the time VPN will work without issue

Rejecting child SA with the same traffic selectors as existing child SA - local protocol: 0 local selector: x.x.x.x/0 - x.x.x.x/65535 remote protocol: 0 remote selector: x.x.x.x/0 - x.x.x.x/65535