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Problems with WEP encryption

Setting up WEP encryption properly can be tricky, as the settings on the card and base station must match exactly. Here are some of the things that often go wrong:

Mismatched authentication methods -- WEP defines two authentication methods: "open system" and "shared secret." To establish a connection, the card and base station have to agree on which one to use. Normally, both are set to "auto" and everything works. But some base stations disable "open system" while certain cards (especially with older firmware) don't understand "shared secret." Thus, no communication. In these cases, the solution is to enable "open system" on the base station or update the card's firmware.

Mismatched keys -- WEP keys can be long and difficult to type in correctly. This is one reason we don't obscure the characters while you're typing in a new key. We also support all of the various key formats that different base station vendors use. Make sure you've selected the right type of key, and that the key value is typed in exactly as it is for the base station.

For AirPort passwords and ASCII keys, capitalization and spacing must match. For hex keys, all of the hex digits must be present. For all keys, the length of the key must also match. WEP keys come in two lengths: 40-bit and 104-bit, usually described on the packaging as 64-bit and 128-bit. And here's a handy guide to key lengths and corresponding encryption settings:

5 characters --> 64-bit ASCII password
10 characters --> 64-bit WEP key
13 characters --> 128-bit ASCII password
26 characters --> 128-bit WEP key

Multiple keys -- Most base stations are configured with a single encryption key, but some are set up to use multiple keys at the same time. If you are using one of these, you need to enter all four keys in the same order as they have been entered on the base station and select which key your card should use when it transmits network data.

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Do you support 40-bi

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