I upgraded my UTM to 9.350-12 a couple of weeks ago, now my L2TP over IPSec connection stopped working. I tried rebooting, restoring my settings, changing the pre-shared key, change the VPN user's password... I keep getting the same error:
Windows: "The L2TP connection attempt failed becuase the security layer encountered a processing error during initial negotiations with the remote computer."
iOS: "The L2TP-VPN server did not respond."
I am not sure what to do at this point, thank you in advanced for any guidance you can give.
This is what's on my remote access log when I tried to connect:
2015:10:23-08:52:05 UTM pluto[5620]: forgetting secrets
2015:10:23-08:52:05 UTM pluto[5620]: loading secrets from "/etc/ipsec.secrets"
2015:10:23-08:52:05 UTM pluto[5620]: loaded PSK secret for xx.xx.xx.xx %any
2015:10:23-08:52:05 UTM pluto[5620]: loading ca certificates from '/etc/ipsec.d/cacerts'
2015:10:23-08:52:05 UTM pluto[5620]: loaded ca certificate from '/etc/ipsec.d/cacerts/VPN Signing CA (Fri Dec 5 14:37:47 2014).pem'
2015:10:23-08:52:05 UTM pluto[5620]: loaded ca certificate from '/etc/ipsec.d/cacerts/VPN Signing CA.pem'
2015:10:23-08:52:05 UTM pluto[5620]: loading aa certificates from '/etc/ipsec.d/aacerts'
2015:10:23-08:52:05 UTM pluto[5620]: loading ocsp certificates from '/etc/ipsec.d/ocspcerts'
2015:10:23-08:52:05 UTM pluto[5620]: loading attribute certificates from '/etc/ipsec.d/acerts'
2015:10:23-08:52:05 UTM pluto[5620]: Changing to directory '/etc/ipsec.d/crls'
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