Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: how to password protect it
Document: We needed a wireless router to work and protect our line. I am very impress with the product and price. I definitely recommend this product.
There might be some residual problems, such as lack of ability to protect your network - but hell, I like my neighbors, let 'em hack in if they can. Finally - you will get good support and quickly if you send your request via email. Everyone knows telephone support - for anything, sucks. Your support might not be relevant for a Mac, but, again, this product wasn't intended for them though it does work just fine with them if you can get past the configuration hurdles.
Wireless can be used on a multi-floor building but don't expect 100% connection on every floor from this router. Without a range booster, the connection is solid. Also, the router adds more security to protect your computer and home network from perpetrators. In addition, it adds 4 alternative LAN connections from the back.I would buy, but try to get the best deal even under 40 dollars. Sometimes Amazon offers free shipping w/ this product and makes it a steal.
Changing the password wasn't that big a hassle.
When I install this, I failed in the step 7. I don't know why. I would appreciate if you give suggestion or directly let me know your password for it.
This is by far much better router than D-Link. It's much easier to set up and it works excellent. It even comes with it's own password when you're setting up your home network.
Router has worked seamlessly. Asked for assistance in installing & password protection. The Linksys folks were great and installation went without a hitch. No problems experienced so far.
The big problem with set up is that it did not recognize we use DSL and as such need to login to the DSL modem using an account name and password. After bailing out of the "wizard" and setting it up manually all was good.
I used to software and it was easy enough for me, someone who had never used a router before, to figure out on my own. It included options like securing the network with a password, something I recommend to all.
This is an excellent wireless router. We have it connected to our desktop and it works great with our Nintendo Wii. It also works great with notebooks with wireless adapters. It's password protected so the neighbors can't steal your bandwidth.
Answer: Open up web browser while connected to the internet through router. Type in the address bar; 192.168.1.1It will give you basic information about router. When clicking on wireless settings it will ask for user name and password. Default is as such; username: admin   password: admin. Change settings to password protect. Most common type is wep2. Older systems such as early android or win xp work better with standard wep protection.