DSL light flashing and no internet. The telekom technicians comes and tells all good..

Hello All ,

I have requested for transfer of my old o2 connection from old to new apartment after waiting for 22 Days finally technician arrive he did his job and told all will work soon then he left , giving excuse its not working now as i need to connect one wire from outside which is not in building .

since that i am trying , I also used o2 service app , follow all steps but at below steps its stops