hi everyone can someone please help me urgently i have a viggor2830vn that i cant log into i need to change the password on it urgentley my ex delt with all this and has the details to it i need to change it so he cant get on

If he/she changed the password from the default (admin / admin) then you cannot get in. You'd have to reset the unit to factory defaults which means it won't operater until you set it up again and will need all of your ISP credentials to do that.

It would be a lot easier of you can contact your ex.