reset particular service configuration (ipsec vpn)

[nullinger]

hello,

i am on the latest version of opnsense with some massive problems with vpn. i just can't connect with my mobole clients anymore (using IKEv2+MSCHapv2/EAP, error: charon: 15[IKE] <con1|8> no EAP key found for hosts '***hostname***' - '***ikeuser***'). The configuration ist just the same as on other opnsense machines i use - i think somehow the IPSEC part is broken, as the service does not start automatically at boot, and the ipsec firewall rules aren't inserted automatically anymore. maybe a recent hardware change messed something up.
So, is there a possibility to reset/reconfigure the ipsec part only to default state?