Hello,
I have a RUT955 with firmware RUT9XX_R_00.06.06.1.
I followed step by step this guide https://wiki.teltonika-networks.com/view/RUT955_L2TP_over_IPsec_(Windows_10) to connect in L2TP VPN my windows 10 laptop.
The VPN connection fails with the following error: "the L2TP connection attempt failed because the security layer encountered a processing error during the initial negotiations with the remote computer."
I already enabled MS-CHAPv2 as suggested in several forum.
Connecting in CLI to the RUT955 and running "logread" I identified this error:
Thu May 14 15:47:11 2020 daemon.info syslog: 08[CFG] received stroke: initiate 'ipsec1'
Thu May 14 15:47:11 2020 daemon.info syslog: 08[IKE] unable to resolve %any, initiate aborted
Thu May 14 15:47:11 2020 daemon.info syslog: 08[MGR] tried to checkin and delete nonexisting IKE_SA
I already reinstalled WAN Miniport driver on my laptop but the error persist.
I understood it may be a problem with Strongswan.
May you please help?
thanks