Asus RT-AC68U Setup Manual page 2

Step 2
Choose "PPTP" tab in the appeared window, fill the fields.
"Description" is the name of the connection, it can be any as you like, we recommend to set it to
"StrongVPN".
Please note: if you already have the connection with the same name it will not let you save the
settings.
Fill full Server Address to "VPN Server" field. (Your server is not "str-XXXXXX.reliablehosting.com", it
is just an example.)