RAID is not a replacement for a backup! Here's why.
Hello HugoRune,
In response to your question I would suggest taking a look at the bit type of your encryption. The Nintendo DS can only connect to a WEP 64-bit encrypted network. Any higher encryption will usually cause the error message you have now. I would suggest utilizing WEP 5 character ASCII or 10 digit HEXADECIMAL and see if that solves your problem.
Regards,
Dustin