My friend wants to keep his home network super-secure, due to some trouble that he's had with unwelcome Wi-Fi intruders. So, naturally, he devised an ultra-long WPA2 passphrase (on the order of 100+ characters) to thwart any would-be intruders.
Now, to my knowledge, even a simple 10-character alphanumeric passphrase would be quite secure for everyday use. Nonetheless, he insists on overkill. My question is, can this gigantic passphrase be detrimental to the performance of the network, or somehow cause slowdown at all? And, why or why not?
This question arose because I was having trouble connecting an older laptop, running Xubuntu, to his WPA2 network, whereas the laptop connects and functions fine with other WPA2 networks.