Hi,
as you are using SNC router.
sapserv2 (194.39.131.34) connection via Internet SNC
Have to check your SNC configuration .
First of all check the validity of the sap router certs.
sapgenpse seclogin –l
Second thing have you checked that the Router certs are valid or in valid please check the below doc for SNC.
http://service.sap.com/saprouter-sncdoc
Still cant resolve please post the output of the license and the router tab.
Thanks
Rishi abrol