cant update my avast neteir input my activation key

dear sir ;

i have a problem since 20 days that i cant update my avast data base , its show me that i cant connect to the internet ,

nb: i have a windows xp

pls help me to solve the problem

  • Which Avast…? (Free/Pro/IS/Premier)
  • Which version…?
  • OS…? (32/64 Bit…? - which SP…?)
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?