The default login credential would be admin for user name and password and using this credential you can change the desired changes. You can check the WEP security key which should be used to connect more devices with the available wireless connection. You are allowed to change the password for your convenience but using the provided security key is advisable because it will be very tough to decrypt it. You cannot connect 192.168.2.1 out of home connection because it is default home connection used in standard routers.