Net gear Wireless, secuirty code, & Blu-Ray Player?

There are two different passwords to most routers. If you are talking about the login password to the interface and configuration of the router i would highly advise you to change that from the default one or from leaving it blank to something only you know. If you are talking about the wireless encryption as far as who can access the wireless network then i would advise you to turn the encryption on so that not everyone can tap into your network and use your internet connection. As far as your bluray player, computer etc any device that uses the wireless connection will have to be configured to connect to the router with the password you create. You just have to do this once on the setup of each equipment and save it. The next time it is turned on it will automatically use that information and make the connection.

If you are interested in security algorithms there are a few. I would recommend at least a WPA but definitely a WPA2 security setup. WEP is highly crackable and not recommended to be run. On an average home users network WEP can be cracked within a few minutes to an hour depending on the amount of traffic on that network.

No, you enter the passphrase just once into each device that uses the wireless connection.

Anybody who wishes to use your wireless needs to enter your passphrase, should you choose to give it to them, or you choose a weak password they can guess. Some routers you can set a guest/hotel mode, which they have to enter a password each time, or you can change it without affecting your own connections.

I am on board with classics...

You usually have to enter it only once, but there have been odd occasions where I needed to re-enter mine. So, write down the P/W and keep it somewhat handy. I have made mine a simple number to remember like my cell #.

Hope you get it all worked out!

xx