VPN @ L2TP/IPSEC @ ROS 6.9

Hi,
I need help with L2TP/IPSEC.
I’m trying to establish a connection like this:

http://www.youtube.com/watch?v=OBlUaZw9uNU

The result in logs when I try to connect with win7 looks like this:

4:03:21 p.m. ipsec, debug config Remote has no key 
4:03:21 p.m. ipsec, debug could not find the pskey for 176.xxx 
4:03:21 p.m. ipsec, debug failed to process packet. 
4:03:21 p.m. ipsec, debug phase1 negotiation failed.

Hardware: RB2011UAS-2HnD @ ROS 6.9

I spent a lot of time this weekend, trying a lot of options and ideas.
Whatever I do the results is always as above.
I would like to ask you to any ideas, links to check, proposals for changes in the configuration. Anything what could push me in the right direction.

More from logs:

16:03:21 ipsec,debug,packet ========== 
16:03:21 ipsec,debug,packet 384 bytes message received from 176.xx.xx.xx[500] to 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet 6b259da5 ff8ea7a5 00000000 00000000 01100200 00000000 00000180 0d0000d4
16:03:21 ipsec,debug,packet 00000001 00000001 000000c8 01010005 03000028 01010000 80010007 800e0100
16:03:21 ipsec,debug,packet 80020002 80040014 80030001 800b0001 000c0004 00007080 03000028 02010000
16:03:21 ipsec,debug,packet 80010007 800e0080 80020002 80040013 80030001 800b0001 000c0004 00007080
16:03:21 ipsec,debug,packet 03000028 03010000 80010007 800e0100 80020002 8004000e 80030001 800b0001
16:03:21 ipsec,debug,packet 000c0004 00007080 03000024 04010000 80010005 80020002 8004000e 80030001
16:03:21 ipsec,debug,packet 800b0001 000c0004 00007080 00000024 05010000 80010005 80020002 80040002
16:03:21 ipsec,debug,packet 80030001 800b0001 000c0004 00007080 0d000018 1e2b5169 05991c7d 7c96fcbf
16:03:21 ipsec,debug,packet b587e461 00000008 0d000014 4a131c81 07035845 5c5728f2 0e95452f 0d000014
16:03:21 ipsec,debug,packet 90cb8091 3ebb696e 086381b5 ec427b1f 0d000014 4048b7d5 6ebce885 25e7de7f
16:03:21 ipsec,debug,packet 00d6c2d3 0d000014 fb1de3cd f341b7ea 16b7e5be 0855f120 0d000014 26244d38
16:03:21 ipsec,debug,packet eddb61b3 172a36e3 d0cfb819 00000014 e3a5966a 76379fe7 07228231 e5ce8652
16:03:21 ipsec,debug,packet === 
16:03:21 ipsec respond new phase 1 negotiation: 77.xx.xx.xx[500]<=>176.xx.xx.xx[500] 
16:03:21 ipsec begin Identity Protection mode. 
16:03:21 ipsec,debug,packet begin. 
16:03:21 ipsec,debug,packet seen nptype=1(sa) 
16:03:21 ipsec,debug,packet seen nptype=13(vid) 
16:03:21 ipsec,debug,packet seen nptype=13(vid) 
16:03:21 ipsec,debug,packet seen nptype=13(vid) 
16:03:21 ipsec,debug,packet seen nptype=13(vid) 
16:03:21 ipsec,debug,packet seen nptype=13(vid) 
16:03:21 ipsec,debug,packet seen nptype=13(vid) 
16:03:21 ipsec,debug,packet seen nptype=13(vid) 
16:03:21 ipsec,debug,packet succeed. 
16:03:21 ipsec,debug received broken Microsoft ID: MS NT5 ISAKMPOAKLEY 
16:03:21 ipsec,debug received Vendor ID: RFC 3947 
16:03:21 ipsec,debug received Vendor ID: draft-ietf-ipsec-nat-t-ike-02 
16:03:21 ipsec,debug 
16:03:21 ipsec,debug received Vendor ID: FRAGMENTATION 
16:03:21 ipsec,debug,packet received unknown Vendor ID 
16:03:21 ipsec,debug,packet received unknown Vendor ID 
16:03:21 ipsec,debug,packet received unknown Vendor ID 
16:03:21 ipsec,debug Selected NAT-T version: RFC 3947 
16:03:21 ipsec,debug,packet total SA len=208 
16:03:21 ipsec,debug,packet 00000001 00000001 000000c8 01010005 03000028 01010000 80010007 800e0100
16:03:21 ipsec,debug,packet 80020002 80040014 80030001 800b0001 000c0004 00007080 03000028 02010000
16:03:21 ipsec,debug,packet 80010007 800e0080 80020002 80040013 80030001 800b0001 000c0004 00007080
16:03:21 ipsec,debug,packet 03000028 03010000 80010007 800e0100 80020002 8004000e 80030001 800b0001
16:03:21 ipsec,debug,packet 000c0004 00007080 03000024 04010000 80010005 80020002 8004000e 80030001
16:03:21 ipsec,debug,packet 800b0001 000c0004 00007080 00000024 05010000 80010005 80020002 80040002
16:03:21 ipsec,debug,packet 80030001 800b0001 000c0004 00007080 
16:03:21 ipsec,debug,packet begin. 
16:03:21 ipsec,debug,packet seen nptype=2(prop) 
16:03:21 ipsec,debug,packet succeed. 
16:03:21 ipsec,debug,packet proposal #1 len=200 
16:03:21 ipsec,debug,packet begin. 
16:03:21 ipsec,debug,packet seen nptype=3(trns) 
16:03:21 ipsec,debug,packet seen nptype=3(trns) 
16:03:21 ipsec,debug,packet seen nptype=3(trns) 
16:03:21 ipsec,debug,packet seen nptype=3(trns) 
16:03:21 ipsec,debug,packet seen nptype=3(trns) 
16:03:21 ipsec,debug,packet succeed. 
16:03:21 ipsec,debug,packet transform #1 len=40 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=AES-CBC 
16:03:21 ipsec,debug,packet encryption(aes) 
16:03:21 ipsec,debug,packet type=Key Length, flag=0x8000, lorv=256 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=20 
16:03:21 ipsec,debug invalid DH group 20. 
16:03:21 ipsec,debug,packet transform #2 len=40 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=AES-CBC 
16:03:21 ipsec,debug,packet encryption(aes) 
16:03:21 ipsec,debug,packet type=Key Length, flag=0x8000, lorv=128 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=19 
16:03:21 ipsec,debug invalid DH group 19. 
16:03:21 ipsec,debug,packet transform #3 len=40 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=AES-CBC 
16:03:21 ipsec,debug,packet encryption(aes) 
16:03:21 ipsec,debug,packet type=Key Length, flag=0x8000, lorv=256 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=2048-bit MODP group 
16:03:21 ipsec,debug,packet dh(modp2048) 
16:03:21 ipsec,debug,packet type=Authentication Method, flag=0x8000, lorv=pre-shared key 
16:03:21 ipsec,debug,packet type=Life Type, flag=0x8000, lorv=seconds 
16:03:21 ipsec,debug,packet type=Life Duration, flag=0x0000, lorv=4 
16:03:21 ipsec,debug,packet transform #4 len=36 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=3DES-CBC 
16:03:21 ipsec,debug,packet encryption(3des) 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=2048-bit MODP group 
16:03:21 ipsec,debug,packet dh(modp2048) 
16:03:21 ipsec,debug,packet type=Authentication Method, flag=0x8000, lorv=pre-shared key 
16:03:21 ipsec,debug,packet type=Life Type, flag=0x8000, lorv=seconds 
16:03:21 ipsec,debug,packet type=Life Duration, flag=0x0000, lorv=4 
16:03:21 ipsec,debug,packet transform #5 len=36 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=3DES-CBC 
16:03:21 ipsec,debug,packet encryption(3des) 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=1024-bit MODP group 
16:03:21 ipsec,debug,packet dh(modp1024) 
16:03:21 ipsec,debug,packet type=Authentication Method, flag=0x8000, lorv=pre-shared key 
16:03:21 ipsec,debug,packet type=Life Type, flag=0x8000, lorv=seconds 
16:03:21 ipsec,debug,packet type=Life Duration, flag=0x0000, lorv=4 
16:03:21 ipsec,debug,packet pair 1: 
16:03:21 ipsec,debug,packet  0x4851c8: next=(nil) tnext=0x4851e0 
16:03:21 ipsec,debug,packet   0x4851e0: next=(nil) tnext=0x4851f8 
16:03:21 ipsec,debug,packet    0x4851f8: next=(nil) tnext=(nil) 
16:03:21 ipsec,debug,packet proposal #1: 3 transform 
16:03:21 ipsec,debug,packet prop#=1, prot-id=ISAKMP, spi-size=0, #trns=5 
16:03:21 ipsec,debug,packet trns#=3, trns-id=IKE 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=AES-CBC 
16:03:21 ipsec,debug,packet type=Key Length, flag=0x8000, lorv=256 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=2048-bit MODP group 
16:03:21 ipsec,debug,packet type=Authentication Method, flag=0x8000, lorv=pre-shared key 
16:03:21 ipsec,debug,packet type=Life Type, flag=0x8000, lorv=seconds 
16:03:21 ipsec,debug,packet type=Life Duration, flag=0x0000, lorv=4 
16:03:21 ipsec,debug,packet Compared: Local:Peer 
16:03:21 ipsec,debug,packet (lifetime = 86400:28800) 
16:03:21 ipsec,debug,packet (lifebyte = 0:0) 
16:03:21 ipsec,debug,packet enctype = 3DES-CBC:AES-CBC 
16:03:21 ipsec,debug,packet (encklen = 0:256) 
16:03:21 ipsec,debug,packet hashtype = SHA:SHA 
16:03:21 ipsec,debug,packet authmethod = pre-shared key:pre-shared key 
16:03:21 ipsec,debug,packet dh_group = 1024-bit MODP group:2048-bit MODP group 
16:03:21 ipsec,debug,packet prop#=1, prot-id=ISAKMP, spi-size=0, #trns=5 
16:03:21 ipsec,debug,packet trns#=4, trns-id=IKE 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=3DES-CBC 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=2048-bit MODP group 
16:03:21 ipsec,debug,packet type=Authentication Method, flag=0x8000, lorv=pre-shared key 
16:03:21 ipsec,debug,packet type=Life Type, flag=0x8000, lorv=seconds 
16:03:21 ipsec,debug,packet type=Life Duration, flag=0x0000, lorv=4 
16:03:21 ipsec,debug,packet Compared: Local:Peer 
16:03:21 ipsec,debug,packet (lifetime = 86400:28800) 
16:03:21 ipsec,debug,packet (lifebyte = 0:0) 
16:03:21 ipsec,debug,packet enctype = 3DES-CBC:3DES-CBC 
16:03:21 ipsec,debug,packet (encklen = 0:0) 
16:03:21 ipsec,debug,packet hashtype = SHA:SHA 
16:03:21 ipsec,debug,packet authmethod = pre-shared key:pre-shared key 
16:03:21 ipsec,debug,packet dh_group = 1024-bit MODP group:2048-bit MODP group 
16:03:21 ipsec,debug,packet prop#=1, prot-id=ISAKMP, spi-size=0, #trns=5 
16:03:21 ipsec,debug,packet trns#=5, trns-id=IKE 
16:03:21 ipsec,debug,packet type=Encryption Algorithm, flag=0x8000, lorv=3DES-CBC 
16:03:21 ipsec,debug,packet type=Hash Algorithm, flag=0x8000, lorv=SHA 
16:03:21 ipsec,debug,packet type=Group Description, flag=0x8000, lorv=1024-bit MODP group 
16:03:21 ipsec,debug,packet type=Authentication Method, flag=0x8000, lorv=pre-shared key 
16:03:21 ipsec,debug,packet type=Life Type, flag=0x8000, lorv=seconds 
16:03:21 ipsec,debug,packet type=Life Duration, flag=0x0000, lorv=4 
16:03:21 ipsec,debug,packet Compared: Local:Peer 
16:03:21 ipsec,debug,packet (lifetime = 86400:28800) 
16:03:21 ipsec,debug,packet (lifebyte = 0:0) 
16:03:21 ipsec,debug,packet enctype = 3DES-CBC:3DES-CBC 
16:03:21 ipsec,debug,packet (encklen = 0:0) 
16:03:21 ipsec,debug,packet hashtype = SHA:SHA 
16:03:21 ipsec,debug,packet authmethod = pre-shared key:pre-shared key 
16:03:21 ipsec,debug,packet dh_group = 1024-bit MODP group:1024-bit MODP group 
16:03:21 ipsec,debug,packet an acceptable proposal found. 
16:03:21 ipsec,debug,packet dh(modp1024) 
16:03:21 ipsec,debug,packet agreed on pre-shared key auth. 
16:03:21 ipsec,debug,packet === 
16:03:21 ipsec,debug,packet new cookie: 
16:03:21 ipsec,debug,packet fe30c1693cb3d9e9  
16:03:21 ipsec,debug,packet add payload of len 52, next type 13 
16:03:21 ipsec,debug,packet add payload of len 16, next type 13 
16:03:21 ipsec,debug,packet add payload of len 16, next type 0 
16:03:21 ipsec,debug,packet 124 bytes from 77.xx.xx.xx[500] to 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet sockname 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet send packet from 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet send packet to 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet src4 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet dst4 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet 1 times of 124 bytes message will be sent to 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 01100200 00000000 0000007c 0d000038
16:03:21 ipsec,debug,packet 00000001 00000001 0000002c 01010001 00000024 05010000 80010005 80020002
16:03:21 ipsec,debug,packet 80040002 80030001 800b0001 000c0004 00007080 0d000014 4a131c81 07035845
16:03:21 ipsec,debug,packet 5c5728f2 0e95452f 00000014 afcad713 68a1f1c9 6b8696fc 77570100 
16:03:21 ipsec,debug,packet resend phase1 packet 6b259da5ff8ea7a5:fe30c1693cb3d9e9 
16:03:21 ipsec,debug,packet ========== 
16:03:21 ipsec,debug,packet 260 bytes message received from 176.xx.xx.xx[500] to 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 04100200 00000000 00000104 0a000084
16:03:21 ipsec,debug,packet 828f5996 68f0ac2b efba0c76 0adfbf7d 5b4d3191 87b38a66 59322b0a 97be7e3c
16:03:21 ipsec,debug,packet 1a997b7d d3e8f915 599c621e 8937cd08 e16887c4 d44589f5 03602c1f 9958233f
16:03:21 ipsec,debug,packet ba655699 2102af33 5eeb38dd 7d142a9a ab0bfcdd ee6250ad 29ac3a52 c0ec551f
16:03:21 ipsec,debug,packet c5d2cbdd 0e748348 75e52cea 5c96943f cbacee4c 9ca4bf8f 15eb15d0 e922c1a5
16:03:21 ipsec,debug,packet 14000034 b62dfe07 00312306 9105628a 03367b84 b866066d a6b5deca 7cfc1dbc
16:03:21 ipsec,debug,packet 292116ff 416513d8 684c9e1d e4b01512 3a55d541 14000018 ae9cb26b 8f7ada4c
16:03:21 ipsec,debug,packet a39327b9 b8816e99 5c9386a0 00000018 5608e44e 9ab1e01c 41bda698 74b3492c
16:03:21 ipsec,debug,packet da4fd1a3 
16:03:21 ipsec,debug,packet begin. 
16:03:21 ipsec,debug,packet seen nptype=4(ke) 
16:03:21 ipsec,debug,packet seen nptype=10(nonce) 
16:03:21 ipsec,debug,packet seen nptype=20(nat-d) 
16:03:21 ipsec,debug,packet seen nptype=20(nat-d) 
16:03:21 ipsec,debug,packet succeed. 
16:03:21 ipsec,debug Hashing 77.xx.xx.xx[500] with algo #2  
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug NAT-D payload #0 verified 
16:03:21 ipsec,debug Hashing 176.xx.xx.xx[500] with algo #2  
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug NAT-D payload #1 doesn't match 
16:03:21 ipsec,debug NAT detected: PEER 
16:03:21 ipsec,debug,packet === 
16:03:21 firewall,info input: in:ether1-gateway out:(none), src-mac b0:c6:9a:e3:3a:41, proto UDP, 176.xx.xx.xx:500->77.xx.xx.xx:500, len 412 
16:03:21 ipsec,debug,packet compute DH's private. 
16:03:21 ipsec,debug,packet 7cc615f0 135425d7 702e31a1 a6c7c98b c0520f7d 78ef95f5 6099c752 adb2eeac
16:03:21 ipsec,debug,packet dfcba03b 9e2eb237 8af7e5ba 54369442 075de286 47903886 e5ffa41c d908ef36
16:03:21 ipsec,debug,packet d7ad7899 ccc25161 81d7b438 6888a0fe 826c7cb0 4c43c8c3 b9bcf610 4e9b147c
16:03:21 ipsec,debug,packet ee9c0098 751fe246 d2ba79bc 081959cd 13e60b4e 76d466f9 f0678ec6 5293a4f3
16:03:21 ipsec,debug,packet compute DH's public. 
16:03:21 ipsec,debug,packet 6bd779da 6b07a2be cca2c00f 824be15a 9fd0cbd9 2c1f46ec 7f4466d5 404eb53e
16:03:21 ipsec,debug,packet 1af0d471 60e728f6 7e05e5d5 5f84fd07 d9589a44 c2facf28 909867b5 bc74a3a1
16:03:21 ipsec,debug,packet 1c42762e fd446013 acca6f73 0697aeb1 1f12ccba c52b79aa fb3f075b 1004819e
16:03:21 ipsec,debug,packet bec35f42 2fac110e 3a1d9d91 0bdccb16 c51c3334 46192d2c 09575b31 41fee564
16:03:21 ipsec,debug Hashing 176.xx.xx.xx[500] with algo #2  
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug Hashing 77.xx.xx.xx[500] with algo #2  
16:03:21 ipsec,debug,packet hash(sha1) 
16:03:21 ipsec,debug Adding remote and local NAT-D payloads. 
16:03:21 ipsec,debug,packet add payload of len 128, next type 10 
16:03:21 ipsec,debug,packet add payload of len 24, next type 20 
16:03:21 ipsec,debug,packet add payload of len 20, next type 20 
16:03:21 ipsec,debug,packet add payload of len 20, next type 0 
16:03:21 ipsec,debug,packet 236 bytes from 77.xx.xx.xx[500] to 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet sockname 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet send packet from 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet send packet to 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet src4 77.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet dst4 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet 1 times of 236 bytes message will be sent to 176.xx.xx.xx[500] 
16:03:21 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 04100200 00000000 000000ec 0a000084
16:03:21 ipsec,debug,packet 6bd779da 6b07a2be cca2c00f 824be15a 9fd0cbd9 2c1f46ec 7f4466d5 404eb53e
16:03:21 ipsec,debug,packet 1af0d471 60e728f6 7e05e5d5 5f84fd07 d9589a44 c2facf28 909867b5 bc74a3a1
16:03:21 ipsec,debug,packet 1c42762e fd446013 acca6f73 0697aeb1 1f12ccba c52b79aa fb3f075b 1004819e
16:03:21 ipsec,debug,packet bec35f42 2fac110e 3a1d9d91 0bdccb16 c51c3334 46192d2c 09575b31 41fee564
16:03:21 ipsec,debug,packet 1400001c a333bcb8 8a029afc f5e212cd ec92b7cb 7a89b0af 688ee279 14000018
16:03:21 ipsec,debug,packet 7a6bd62d 7fca4cd7 31ebab99 b8e8aee9 6e1251e9 00000018 ae9cb26b 8f7ada4c
16:03:21 ipsec,debug,packet a39327b9 b8816e99 5c9386a0 
16:03:21 ipsec,debug,packet resend phase1 packet 6b259da5ff8ea7a5:fe30c1693cb3d9e9 
16:03:21 ipsec,debug,packet compute DH's shared. 
16:03:21 ipsec,debug,packet 
16:03:21 ipsec,debug,packet 569a145a 8a79a97a da9fe3a4 9980d515 1a69f77f 646db8fc 8a938b79 df822531
16:03:21 ipsec,debug,packet f1005bf3 44f8e001 7f05d999 b5a528e1 633d9761 fa113eb7 2e3dc168 8a4dd024
16:03:21 ipsec,debug,packet 37026063 a26d3cd5 eadb74b7 2dd195d1 479707b0 83214629 55afe25f 70a4a7a7
16:03:21 ipsec,debug,packet ef2dc729 3eb8a9a9 b1d1f271 61364833 1b658b43 7513478e dc61184d b09bbf6e
16:03:21 ipsec,debug Remote config has no key 
16:03:21 ipsec,debug couldn't find the pskey for 176.xx.xx.xx. 
16:03:21 ipsec,debug failed to process packet. 
16:03:21 ipsec,debug phase1 negotiation failed. 
16:03:21 ipsec,debug,packet an undead schedule has been deleted. 
16:03:21 ipsec,debug,packet ========== 
16:03:21 ipsec,debug,packet 68 bytes message received from 176.xx.xx.xx[4500] to 77.xx.xx.xx[4500] 
16:03:21 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 05100201 00000000 00000044 090bf93d
16:03:21 ipsec,debug,packet 5f70bc0b 23214260 a7184580 7a249513 cbcd2341 67210e8e a331a666 030f4165
16:03:21 ipsec,debug,packet fb9f4be9 
16:03:21 ipsec,debug,packet malformed cookie received or the spi expired. 
16:03:21 firewall,info input: in:ether1-gateway out:(none), src-mac b0:c6:9a:e3:3a:41, proto UDP, 176.xx.xx.xx:4500->77.xx.xx.xx:4500, len 100 
16:03:23 ipsec,debug,packet ========== 
16:03:23 ipsec,debug,packet 68 bytes message received from 176.xx.xx.xx[4500] to 77.xx.xx.xx[4500] 
16:03:23 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 05100201 00000000 00000044 090bf93d
16:03:23 ipsec,debug,packet 5f70bc0b 23214260 a7184580 7a249513 cbcd2341 67210e8e a331a666 030f4165
16:03:23 ipsec,debug,packet fb9f4be9 
16:03:23 ipsec,debug,packet malformed cookie received or the spi expired. 
16:03:23 firewall,info input: in:ether1-gateway out:(none), src-mac b0:c6:9a:e3:3a:41, proto UDP, 176.xx.xx.xx:4500->77.xx.xx.xx:4500, len 100 
16:03:26 ipsec,debug,packet ========== 
16:03:26 ipsec,debug,packet 68 bytes message received from 176.xx.xx.xx[4500] to 77.xx.xx.xx[4500] 
16:03:26 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 05100201 00000000 00000044 090bf93d
16:03:26 ipsec,debug,packet 5f70bc0b 23214260 a7184580 7a249513 cbcd2341 67210e8e a331a666 030f4165
16:03:26 ipsec,debug,packet fb9f4be9 
16:03:26 ipsec,debug,packet malformed cookie received or the spi expired. 
16:03:26 firewall,info input: in:ether1-gateway out:(none), src-mac b0:c6:9a:e3:3a:41, proto UDP, 176.xx.xx.xx:4500->77.xx.xx.xx:4500, len 100 
16:03:30 ipsec,debug,packet ========== 
16:03:30 ipsec,debug,packet 68 bytes message received from 176.xx.xx.xx[4500] to 77.xx.xx.xx[4500] 
16:03:30 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 05100201 00000000 00000044 090bf93d
16:03:30 ipsec,debug,packet 5f70bc0b 23214260 a7184580 7a249513 cbcd2341 67210e8e a331a666 030f4165
16:03:30 ipsec,debug,packet fb9f4be9 
16:03:30 ipsec,debug,packet malformed cookie received or the spi expired. 
16:03:30 firewall,info input: in:ether1-gateway out:(none), src-mac b0:c6:9a:e3:3a:41, proto UDP, 176.xx.xx.xx:4500->77.xx.xx.xx:4500, len 100 
16:03:38 ipsec,debug,packet ========== 
16:03:38 ipsec,debug,packet 68 bytes message received from 176.xx.xx.xx[4500] to 77.xx.xx.xx[4500] 
16:03:38 ipsec,debug,packet 6b259da5 ff8ea7a5 fe30c169 3cb3d9e9 05100201 00000000 00000044 090bf93d
16:03:38 ipsec,debug,packet 5f70bc0b 23214260 a7184580 7a249513 cbcd2341 67210e8e a331a666 030f4165
16:03:38 ipsec,debug,packet fb9f4be9 
16:03:38 ipsec,debug,packet malformed cookie received or the spi expired.

Hello,

Same problem for me. I have open a thread but no response. I think v6.9 has some problems. First, the presharedk key disappears after closing the window.

Try to downgrade to 6.7 and check if all is working again, for me now it’s running.

Hello,

Topic open here ==> http://forum.mikrotik.com/t/preshared-key-l2tp-disappears/73960/1

Working after downgrade. Thanks for hint. :smiley: