Smart modem mobile mode online but no internet

[EmptyG]

Just got the Telstra smart modem gen 2 and I was told that the landline will active later on, let me use the mobile mode for now. I powered the modem and three lights are green, online, mobile mode and mobile signal. Also in the setting page shows (your broadband service is working in backup mode. You are connected and online), and I used my own username and password for pppoe setting. But I just can’t get access to internet, any type.  

[cf4]

The username and password in the PPPOE settings is only used for authentication on ADSL connections and is not required for internet using the 4 G backup. The modem might be faulty or the 4 G backup might be disabled. What version firmware does your modem have? The firmware is displayed on the LHS of the log in page. Your modem might have a early version of firmware.

[EmptyG]

Thanks for the reply. I tried the default username for pppoe at first, since its not working then I used my own account. The firmware version is 18.1.c.0241-950-RA. Not sure if it’s outdated. If there is any faulty, I believe that the mobile status can’t be connected. 

[cf4 · Accepted solution]

That is outdated firmware and might be the reason the internet is not working. Once the main link is working the firmware will automatically update. The internet should work via the 4 G backup while you are waiting for the main link to be connected. You could ring support and report a fault. There is nothing else you can do apart from checking the Enabled is ticked in the modem's Advanced > Mobile > Configuration settings.