IPsec OPNsense-Sophos

Guten Abend zusammen,

wir haben bei uns aktuell ein Problem bei einem IPsec Tunnel zwischen einer OPNsense und einer Sophos UTM.
Der Tunnel hat schonmal funktioniert und nun baut er sich nicht wieder auf

Habt ihr eine Idee, woran das liegen könnte?

Hier das Protokoll der OPNsense (IP: XXX.XXX.XXX.66)
2022-04-27T21:19:30 Informational charon 14[JOB] <1> deleting half open IKE_SA with XXX.XXX.XXX.200 after timeout
2022-04-27T21:19:24 Informational charon 14[NET] <1> sending packet: from XXX.XXX.XXX.66[500] to XXX.XXX.XXX.200[500] (537 bytes)
2022-04-27T21:19:24 Informational charon 14[IKE] <1> received retransmit of request with ID 0, retransmitting response
2022-04-27T21:19:24 Informational charon 14[ENC] <1> parsed IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) ]
2022-04-27T21:19:24 Informational charon 14[NET] <1> received packet: from XXX.XXX.XXX.200[500] to XXX.XXX.XXX.66[500] (910 bytes)
2022-04-27T21:19:11 Informational charon 14[NET] <1> sending packet: from XXX.XXX.XXX.66[500] to XXX.XXX.XXX.200[500] (537 bytes)
2022-04-27T21:19:11 Informational charon 14[IKE] <1> received retransmit of request with ID 0, retransmitting response
2022-04-27T21:19:11 Informational charon 14[ENC] <1> parsed IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) ]
2022-04-27T21:19:11 Informational charon 14[NET] <1> received packet: from XXX.XXX.XXX.200[500] to XXX.XXX.XXX.66[500] (910 bytes)
2022-04-27T21:19:04 Informational charon 14[NET] <1> sending packet: from XXX.XXX.XXX.66[500] to XXX.XXX.XXX.200[500] (537 bytes)
2022-04-27T21:19:04 Informational charon 14[IKE] <1> received retransmit of request with ID 0, retransmitting response
2022-04-27T21:19:04 Informational charon 14[ENC] <1> parsed IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) ]
2022-04-27T21:19:04 Informational charon 14[NET] <1> received packet: from XXX.XXX.XXX.200[500] to XXX.XXX.XXX.66[500] (910 bytes)
2022-04-27T21:19:00 Informational charon 14[NET] <1> sending packet: from XXX.XXX.XXX.66[500] to XXX.XXX.XXX.200[500] (537 bytes)
2022-04-27T21:19:00 Informational charon 14[ENC] <1> generating IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(FRAG_SUP) N(HASH_ALG) N(CHDLESS_SUP) N(MULT_AUTH) ]
2022-04-27T21:19:00 Informational charon 14[IKE] <1> sending cert request for …
2022-04-27T21:19:00 Informational charon 14[IKE] <1> sending cert request for "…
2022-04-27T21:19:00 Informational charon 14[IKE] <1> sending cert request for "….
2022-04-27T21:19:00 Informational charon 14[CFG] <1> selected proposal: IKE:AES_CBC_256/HMAC_SHA2_512_256/PRF_HMAC_SHA2_512/MODP_2048
2022-04-27T21:19:00 Informational charon 14[IKE] <1> XXX.XXX.XXX.200 is initiating an IKE_SA
2022-04-27T21:19:00 Informational charon 14[ENC] <1> parsed IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) ]
2022-04-27T21:19:00 Informational charon 14[NET] <1> received packet: from XXX.XXX.XXX.200[500] to XXX.XXX.XXX.66[500] (910 bytes)
2022-04-27T21:18:17 Informational charon 05[CFG] received stroke: route 'con1'
2022-04-27T21:18:17 Informational charon 01[CFG] added configuration 'con1'

 sending packet: from XXX.XXX.XXX.66[500] to XXX.XXX.XXX.200[500] (537 bytes)