This is most like caused by your modem not having the correct connection settings. You will need to confirm that the correct settings have been entered, and that you are using the correct username and password for your Tomi broadband account.
The settings are as follows:
|Username||Enter your username followed by the domain to look like your email address: firstname.lastname@example.org|
|Password||Enter the password you selected at signup|
|Connection type||PPPoE LLC|
Prior to the above steps, you can also try power cycling your modem by switching it off, then switching it on again after a few seconds.