Hi HULK, Thanks for your reply ^^ I've tried your suggestion but still no luck. I try to examine the hash of pre-shared key no both side but I think it will not help (Just in case it stored with the same hash but it turn out different but I don't doubt that) Here's what I got on ScreenOS. 2014-01-13 17:36:27 info IKE "PAN-IP" phase 1:The symmetric crypto key has been generated successfully. 2014-01-13 17:36:27 info IKE"ScreenOS-IP" "PAN-IP" Phase 1: Initiated negotiations in main mode. 2014-01-13 17:36:15 info IKE "PAN-IP" Phase 1: Retransmission limit has been reached. 2014-01-13 17:35:27 info IKE "PAN-IP" phase 1:The symmetric crypto key has been generated successfully. 2014-01-13 17:35:27 info IKE"ScreenOS-IP" "PAN-IP" Phase 1: Initiated negotiations in main mode. 2014-01-13 17:35:15 info IKE "PAN-IP" Phase 1: Retransmission limit has been reached. 2014-01-13 17:34:27 info IKE "PAN-IP" phase 1:The symmetric crypto key has been generated successfully. 2014-01-13 17:34:27 info IKE"ScreenOS-IP" "PAN-IP" Phase 1: Initiated negotiations in main mode. and here from PAN-OS 5.0.5 1 13-01-14 17:46 9401000816 SYSTEM vpn 0 13-01-14 17:46 ike-nego-p1-delete Office_VPNGW 0 0 general informational IKE phase-1 SA is deleted SA: "PAN-IP"[500]-"ScreenOS-IP"[500] cookie:55d138c5d3a1bffd:4b28a9d9c57d8fbd. 64352 0x0 1 13-01-14 17:46 9401000816 SYSTEM vpn 0 13-01-14 17:46 ike-nego-p1-fail Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed as responder, main mode. Failed SA: "PAN-IP"[500]-"ScreenOS-IP"[500] cookie:55d138c5d3a1bffd:4b28a9d9c57d8fbd. Due to timeout. 64351 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64350 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64349 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64348 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64347 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64346 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64345 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64344 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64343 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64342 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64341 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64340 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64339 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-start Office_VPNGW 0 0 general informational IKE phase-1 negotiation is started as responder, main mode. Initiated SA: "PAN-IP"[500]-"ScreenOS-IP"[500] cookie:55d138c5d3a1bffd:4b28a9d9c57d8fbd. 64338 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-delete Office_VPNGW 0 0 general informational IKE phase-1 SA is deleted SA: "PAN-IP"[500]-"ScreenOS-IP"[500] cookie:b8cfe8c9f96e4225:b688c89484088d3c. 64337 0x0 1 13-01-14 17:45 9401000816 SYSTEM vpn 0 13-01-14 17:45 ike-nego-p1-fail Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed as responder, main mode. Failed SA: "PAN-IP"[500]-"ScreenOS-IP"[500] cookie:b8cfe8c9f96e4225:b688c89484088d3c. Due to timeout. 64336 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64335 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64334 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64333 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64332 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64331 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64330 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64329 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64328 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64327 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64326 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64325 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-fail-psk Office_VPNGW 0 0 general informational IKE phase-1 negotiation is failed likely due to pre-shared key mismatch. 64324 0x0 1 13-01-14 17:44 9401000816 SYSTEM vpn 0 13-01-14 17:44 ike-nego-p1-start Office_VPNGW 0 0 general informational IKE phase-1 negotiation is started as responder, main mode. Initiated SA: "PAN-IP"[500]-"ScreenOS-IP"[500] cookie:b8cfe8c9f96e4225:b688c89484088d3c. 64323 0x0 T^T
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