everytime i try to play halo 1 online it tells me i have an invalid cd key?

[walopolu]

i installed halo onto my computer using a valid cd key and every time i try to connect to a online game it tells me i have an invalid cd key. is there a way i could possibly fix this

 

[akshay b]

did you buy it? If so, and it still doesn't work, try looking in google for another valid cd key. Most probably, you'll find one.

 

[akshay b]

did you buy it? If so, and it still doesn't work, try looking in google for another valid cd key. Most probably, you'll find one.

 

[Billy h]

No not really maybe u typed it in wrong or some of ur friends stole it and used it?