Aircrack-ng Fails All The Time Options

[Capn_Fish]

I've been trying to crack the WEP key on one of my spare routers, but Aircrack-ng fails every time, even with 1 million+ IVs.

What I've been doing is:

CODE

airodump-ng --ivs --write <write prefix> --channel <router's channel> <interface>

Then, once I have a lot (1,000,000+) IVs, I do:

CODE

aircrack-ng -c -a 1 -e <ESSID> -b <BSSID> <*.ivs file>

Is there something wrong with that method? It goes for ~6 hours, then says it failed.

Thanks.