L2TP VPN over same WAN Network

Question

Hi, 
 i have an interesting problem with an L2TP VPN connection and Sophos XG. When i connect with L2TP VPN from LTE or another location, the vpn connection is established. But when i will connect from the same WAN subnet, the vpn connection will be aborted. In the same enviroment with the same network settings, a Sophos SG or a Microsoft TMG have no problems to connect via L2TP VPN. Do I need to configure anything else in Sophos XG for connecting from the same subnet? 
 Thanks a lot, 
 Christian

Net Sn00p · Answer

The WAN IP&acute;s are static from the provider. 
 Router WAN (195.140.50.210) SophosXG WAN (195.140.50.205) 
 
 When i connect from other IP (other Location or LTE) the VPN connection will be established. 
 I reach the Sophos XG with the VPN client and will be asked for my login credentials, after a time from 5s the connection will be aborted. 
 And when i change the Sophos XG to a Sophos SG wiht the same network settings, the vpn connection will be established. 
 
 Is there a special bumper in the Sophos XG so that it works (in the same subnet)? 
 
 Thanks, 
 Christian