@Z.yad 

Hi, for your issue, we would like to confirm the below information first.

'From a wireless connection so the update was corrupted .now there is no internet '

Can you tell us the process of upgrading the firmware in detail?

Is the process interrupted suddenly when you upgrade the firmware version from the wireless connection?

Since the DSL light is on but no internet, may I know if you have followed quick setup to reconfigure it again?

Note: You need to reconfigure the router again after you upgrade the firmware version.

Can you now enter the management page of the router again and send us the whole screenshot of advanced-status to check?

Please also check the version printed on the white label which is on the bottom of the router. It is EU version OR AU version?

Do you remember the previous firmware version of the router?

BTW, may I know who is your internet service provider?

Look forward to your reply.