I just accessed the SmartNet web/mobile web, and then I'm being asked to enter a username and password - what do I enter?
You'll have to register first. Just enter the required account details and verify your account. Once done, you can already start using the SmartNet services. From then on, you can use your account and password to log in to SmartNet.
If you are already a SmartNet registered user via app, you can access the SmartNet website/mobile website right away. You'll just have to enter your mobile number as your account, and your account password.