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- Changing WPA key
January 25, 2010, 11:08 am
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Re: Changing WPA key
It depends on what operating system they're running (what verion of
Windows?), and in some cases what manufacturer (e.g. Dell and Lenovo
have their own wireless network manager software).
i.e. once your wpa passphrase is changed on the router, your pc and
laptop won't successfully connect to it any longer, and the software
managing your wireless connection should bark at you and tell you
something's wrong, and hopefully ask you for the new passwphrase.
Details on the pc and laptop and what operating system they're running
would help if you get stuck after trying to change the settings
Unfortunately, no I haven't any idea. Not without a lot more context
and detail where you're seeing this, anyway.
Re: Changing WPA key
A Wireless PIN is dictated by the Wi-Fi Protected Setup (WPS) standard.
Its a way of doing initial setup for a secure configuration between AP
and client by having a PIN printed on the bottom of the device, and
the AP and client will negotiate a secure configuration, and both
sides reconfigure and be up securely.
Clearly, the current method, of having the AP ship with a blank password
and the SSID of 'linksys' (or whatever) is pretty undesireable from a
security standpoint, since ~60% won't bother changing away from this setup.
I've only seen a few devices support this sort of PIN entry so far.
January 26, 2010, 11:04 am
Re: Changing WPA key
To encrypt your wifi, reset the wireless router to factory: press and
hold reset 20 seconds. On the main computer connected by wire to the
router, use any browser and go to 192.168.1.1 to enter management page.
The router's login password is usually on one of the "Administration"
pages. The other settings are all found in the "Wireless" section of the
router's setup pages, located at 192.168.1.1.
DEFAULT USER NAME LOGINS:
Linksys BEFW11S4 or WRT54G= admin
Linksys EtherFast Cable/DSL Ethernet routers= Administrator
Linksys Comcast routers= comcast
All other Linksys routers= [none].
DEFAULT LOGIN PASSWORDS:
Linksys BEFW11S4= [none]
Linksys Comcast routers= 1234
All other Linksys routers= admin.
First, give your router a unique SSID. Don't use "linksys". Make sure
"SSID Broadcast" is set to "disabled".
MAC Authentication should be applied.
Next, leave the router at its default settings (except for the unique
SSID), and then use a configured as above pc to connect wirelessly to the
router. Test your wireless Internet connection and make sure it is
working correctly. You must have a properly working wireless connection
before setting up wireless security.
To implement wireless security, you need to do one step at a time, then
verify that you can still connect your wireless computer to the router.
Next, select to encrypt your wireless system using the highest level of
encryption that all of your wireless devices will support. Common
encryption methods are:
WEP - poor
WPA (sometimes called PSK, or WPA with TKIP) - good
WPA2 (sometimes called PSK2, or WPA with AES) - best.
WPA and WPA2 sometimes come in versions of "personal" and "enterprise".
Most home users should use "personal". Also, if you have a choice between
AES and TKIP, and your wireless equipment is capable of both, choose AES.
With any encryption method, you will need to supply a key (sometimes
called a "password" ).
The wireless devices (computers, printers, etc.) that you have will need
to be set up with the SSID, encryption method, and key that matches what
you entered in the router. Retest your system and verify that your
wireless Internet connection is still working correctly.
And don't forget to give your router a new login password. Picking
Passwords (keys): You should never use a dictionary word as a password.
If you use a dictionary word as a password, even WPA2 can be cracked in a
few minutes. When you pick your login password and encryption key (or
password or passphrase) you should use a random combination of capital
letters, small letters, numbers, and characters but no spaces. A login
password, should be 12 characters or more. WPA and WPA2 passwords should
be at least 24 characters. Note: Your key, password, or passphrase must
not have any spaces in it.
Most home users should have their routers set so that "remote
management" of the router is disabled. If you must have this option
enabled, then your login password must be increased to a minumum of 24
One additional issue is that Windows XP requires a patch to run WPA2. Go
to Microsoft Knowledge base, article ID=917021 and it will direct you to
the patch. Sadly, the patch is not part of the automatic Windows XP
updates, so lots of people are missing the patch.
A wireless Router with a Full FireWall implementation is best. Then only
the operating system's stock FireWall is needed and the LAN nodes will
have more resources available. A Router FireWall is stronger and more
secure than a software firewall.
Owner of Freeware website: http://bearware.info
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