My AirPort Extreme card on my G5 will connect.

However there are a few issues.

I set up the DNS servers to connect to OpenDNS as it would not connect using any other configuration but the problem is that after about a minute. The connection seems to just stop working although the card claims to be connected to the network.

Is there any way to check this and any way to make sure it stays working?

Getting frustrated as I seem to get one step forward then five steps back...