Can not access the network? - The Computers & Internet

Open Cisco Connect then click Guest access. The password is displayed under the Password header.

To go to the Guest access option using Cisco Connect, follow the steps below:

Step 1: Select Guest access at the main screen of Cisco Connect

In the Guests access settings window, you can enable or disable the Allow guest access, change and check the password for the guest network, or change the number of Total guests allowed.

NOTE: The Guest network name is the main network's SSID with -guest as a suffix. If you want to change the guest network's name, you will need to change the main network's SSID.

If a wireless network has low signal strength, the transfer of information across the network could be slow or you might not be able to access certain parts of the network. Here are solutions to some common problems with low wireless signal strength: • Your computer is too far from the wireless router or access point. Move your computer closer to the router or access point. If your computer is portable, try moving it around to determine the range of the wireless signal and the best place to use the computer. If you can't get closer to the router or access point, consider buying and installing an external antenna for your wireless network adapter. Many wireless network adapters are set up so that you can attach an external antenna to them, which provides better reception than the built-in antenna. Check the information that came with your wireless network adapter to see if you can install an additional antenna. • The wireless router or access point is turned off or isn't working properly. There are two things to try: o Make sure the router or access point is turned on and that the wireless signal light is illuminated. o Reset the router or access point by turning it off, waiting at least 10 seconds, and then turning it back on. If you don't own the access point or don't manage the network, contact the network administrator. • There is interference from other devices. If you have 802.11b or 802.11g network hardware, it uses the 2.4 gigahertz (GHz) frequency. Other devices that use this frequency include microwave ovens and cordless phones. If you have 802.11a network hardware, it uses the 5 GHz frequency. Some cordless phones also use this frequency. These devices can cause interference between your computer and the network. There are two things you can try in this situation: o If any devices like these are near your computer, turn them off temporarily or move them farther away. o Change the router or access point settings to use a different wireless channel, or set the channel to be selected automatically if it's set to a fixed channel number. Sometimes one wireless channel is clearer than others. In the United States and Canada, you can use channels 1, 6, and 11. Check the information that came with your access point or router for instructions about setting the wireless signal channel. • The network you're looking for is set to not broadcast its network name (SSID). Wireless routers and access points can be set up so that they don't broadcast the network name. In this case, you can't detect that the network is in range (in order to connect to it) unless you've previously connected to the network or you manually connect to the network using the service set identifier (SSID). To connect to a network that's not broadcasting, follow these steps: 1. Open Connect to a Network by clicking the network icon ( or ) in the notification area. 2. Click Unnamed Network, and then type the network information. The network will be added to your list of networks and will be available to connect to in the future when your computer is in range of the network.

Hi,

Improve the Fixya.com experience for everyone by voting!

The SSID (Service Set IDentifier) is a token which identifies a 802.11 (Wi-Fi) network. The SSID is a key which is set by the wireless network administrator. You must know the SSID to connect to a 802.11 wireless network. However, the SSID can be discovered by network sniffing/scanning. By default, the SSID is part of the packet header for every packet sent over the WLAN.

SSID access points continuously broadcast radio signals which are received by client machines if enabled. Based on the automatic or manual configuration, the client can connect to the access point. A SSID is generally 32 bit long, but when displayed to the user, it is projected into a human readable ASCII format. Multiple access points can possibly share same SSID if they are for the same wireless network. Many wireless access points support broadcasting multiple SSIDs, permitting the formation of Virtual Access Points. Such Virtual Access Points partition a single physical access point into many logical access points, each of which can have a special set of security and network settings.
SSID Security Issues Every user of the network must configure the SSID into their system. If the network administrator seeks to lock a user out of the network, the administrator must change the SSID of the network, which will require reconfiguration of the SSID on every network node. Some 802.11 NICs allow you to configure several SSIDs at one time.


Default SSID's Most 802.11 access point vendors allow the use of an SSID of "any" to enable an 802.11 NIC to connect to any 802.11 network. This is known to work with wireless equipment from Buffalo Technologies, Cisco, D-Link, Enterasys, Intermec, Lucent, and Proxim. Other default SSID's include "tsunami", "101", "RoamAbout Default Network Name", "Default SSID", and "Compaq".

Every time a client connects to the wireless network, the SSID is communicated in plain text format, which can easily be sniffed by eavesdropper using sniffing applications like Kismet. Hence, additional security techniques are required to be implemented in order to enhance the wireless security.

All the best

Ben

Network Access Protection (NAP) is a Microsoft technology for controlling network access of a computer host based on the system health of the host, first introduced in Windows Server 2008.
With Network Access Protection, system administrators of an organization's computer network can define policies for system health requirements. Examples of system health requirements are whether the computer has the most recent operating system updates installed, whether the computer has the latest version of the anti-virus software signature, or whether the computer has a host-based firewall installed and enabled. Connecting or communicating computers have their health status evaluated. Computers that comply with system health requirements have full access to the network. Administrators can configure health policies that make it possible to ensure that computers not in compliance with system health requirements have restricted access to the network.

for more info. please visit the links below

http://en.wikipedia.org/wiki/Network_Access_Protection
http://msdn.microsoft.com/en-us/library/cc895519%28v=vs.85%29.aspx
http://technet.microsoft.com/en-us/network/bb545879

If you plan to have a wireless network, you should set it up so that only people you choose can access it. Here are a few options for wireless network security.

Wired Equivalent Privacy (WEP)
WEP is a widely used network security method. When you enable WEP, you set up a network security key. This key encrypts the information that one computer sends to another computer across your network. The receiving computer needs the key to decode the information so that it's difficult for someone on another computer to get onto your network and access files without your permission.

Wi-Fi Protected Access (WPA)
WPA was created to improve the security of WEP. Like WEP, WPA encrypts information, but it also checks to make sure that the network security key has not been modified. WPA also authenticates users to help ensure that only authorized people can access the network. If your networking hardware works with both WEP and WPA security, we recommend that you use WPA.

There are two types of WPA authentication: WPA and WPA2. WPA is designed to work with all wireless network adapters, but it might not work with older routers or access points. WPA2 is more secure than WPA, but it will not work with some older network adapters. WPA is designed to be used with an 802.1X authentication server, which distributes different keys to each user. This is referred to as WPA-Enterprise or WPA2-Enterprise. It can also be used in a pre-shared key (PSK) mode, where every user is given the same passphrase. This is referred to as WPA-Personal or WPA2-Personal.

802.1X authentication
802.1X authentication can help enhance security for 802.11 wireless networks and wired Ethernet networks. 802.1X uses an authentication server to validate users and provide network access. On wireless networks, 802.1X can work with Wired Equivalent Privacy (WEP) or Wi-Fi Protected Access (WPA) keys. This type of authentication is typically used when connecting to a workplace network.

IF THIS ALL DOSEN'T WORK TRY THE FOLLOWING:

Wireless network security recommendations
If you have a wireless network, there are some additional security precautions that you should take.

Use a network security key
If you have a wireless network, you should set up a network security key, which turns on encryption. With encryption, people can't connect to your network without the security key. Also, any information that is sent across your network is encrypted so that only computers that have the key to decrypt the information can read it. This can help avert attempts to access your network and files without your permission. Common wireless network encryption methods are Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA) and WPA-2.

Change the default administrator name and password on your router or access point
If you have a router or access point, you probably used a default name and password to set up the equipment. Most manufacturers use the same default name and password for all of their equipment, which someone could use to access your router or access point without you knowing it. To avoid that risk, change the default administrator user name and password for your router. Check the information that came with your device for instructions about how to change the name and password.

Change the default SSID
Routers and access points use a wireless network name called a service set identifier (SSID). Most manufacturers use the same SSID for all of their routers and access points. We recommend that you change the default SSID to keep your wireless network from overlapping with other wireless networks that might be using the default SSID. It makes it easier for you to identify which wireless network is yours, if there is more than one nearby, because the SSID is typically shown in the list of available networks. Check the information that came with your device for instructions about how to change the default SSID.

Position your router or access point carefully
Wireless signals can transmit a few hundred feet, so the signal from your network could be broadcast outside of your home. You can help limit the area that your wireless signal reaches by positioning your router or access point close to the center of your home rather than near an outside wall or window.

To test the hardware, use the product to copy a document.
1.open the scanner lid.
2.put a document face down on the glass.
3.close the scanner lid.
4.press the copy button.


make sure that the product connects to the network
ethernet connection

1.Disconnect the network cable from the back of the product, and then wait a few seconds.
2.Reconnect the network cable to the back of the product.
3.Make sure the other end of the network cable connects securely to the router or switch
4.Make sure that the lights on the router or switch are on.
5.Continue to "Step three: Print a network configuration page and find the IP address."

wireless network

1. Make sure that the router or access point is on.
2. Position the router or access point closer to the product.
3. On the product, press the setup button , and then select the network option.
4. Select the wireless setup wizard option. The product searches for the router or access point.
5. Select the 'enter the new network name'(SSID) option.
6. Type the service set identifier (SSID) or the name for the wireless network, and then select 'done' . The product searches for the network.
7. Select the relevant authentication protocol, also called the security mode. Supported protocols include WEP (64 bit and 128 bit) and WPA-PSK (WPA1 or WPA2, AES or TKIP). Networks that do not use an access point or a router, known as ad hoc networks, support WEP encryption only.
8. If the network uses media access control (MAC) address filtering, make sure that you have the router or access point set to allow the MAC address for the HP product.
9. Follow the instructions to configure the product for your method of network security:
10. 
    
11. WPE: Log on to the router or access point from the computer, and then find the wired equivalent policy (WEP) key set within the router or access point. If you specify the WEP by using 10 or 26 hexadecimal characters, make sure that the characters are 0-9 and A-F. Use the on-screen keyboard on the control panel display to type the WEP key on the product.
12. WPA: Log on to the router or access point from the computer, and then find the Wi-Fi Protected Access (WPA) passphrase set within the router or access point. Use the on-screen keyboard on the control panel display to type the correct WPA passphrase.

make sure that the product is connecting to the network, print a network configuration page from the product and find the IP address on the page.
1.On the product control panel, press the Setup button
2.Select Network , select Network Settings , and then select either Print Network Settings or Print Network Configuration Page . The network configuration page prints
3.Make a note of the IP address for the wired or wireless connection. The IP address should resemble the example: http://192.168.1.1

4.If the computer connects to the Internet using a wired connection, the IP address displays in the Wired section.
5.If the computer connects to the Internet using a wireless connection, the IP address displays in the Wireless section

download internet settings from airtel.
then istall them, Then goto settings, internet setting there select airtel profile and switch off and on your mobile. now you can use the internet.

For this specific issue about installing the printer to a wireless connection. You need to install the software first as a usb connection. After the successful installation of the usb connection then you can add a device and it should work.

Step one: Gather the necessary hardware and information Follow the procedure below before obtaining your wireless network:

1. Obtain your network SSID and WEP. To simplify this process, press the Wireless button on the all-in-one, and select Restore Network Defaults . This turns wireless off and sets the all-in-one's SSID to hpsetup .
2. Press the Wireless button to turn wireless back on. Look for hpsetup when you select your network.
3. Make sure that wireless is enabled on the all-in-one.
4. Make sure that the computer that will be using the all-in-one has access to the router/access point.

You will need the following to set up the product on a wireless network:

• A wireless 802.11 network that includes a wireless access point.
• A desktop computer or laptop with wireless networking support or a network interface card (NIC).
• Broadband Internet access is required for some features of the HP software to function. Cable Internet or DSL are examples of Broadband Internet access. NOTE: If you connect the unit on a wireless network that has Internet access, HP recommends that you use a wireless router (access point or base station) that uses Dynamic Host Configuration Protocol (DHCP).
• The network name, or Service Set Identifier (SSID). NOTE: The SSID is obtained from the wireless router or access point using the embedded web server on the router. See the documentation provided with the access point for more information.
• The Wired Equivalent Privacy (WEP) key or Wi-Fi Protected Access (WPA) passphrase, if needed. CAUTION: To prevent other users from accessing your wireless network, HP strongly recommends using a password or passphrase and a unique SSID to your access point. Your access point might have been shipped with a default SSID, which can be accessed by other users using the same default SSID. For more information on how to change the SSID, see the documentation that came with your access point. NOTE: The WEP key and WPA passphrase are obtained from the wireless router or access point using the embedded web server on the router. See the documentation provided with the access point for more information.Some access points provide more than one WEP key. Use the first WEP key (index 1) when setting up the wireless network.
• If the network is set up with an Apple AirPort base station and you are using a password instead of WEP HEX or WEP ASCII to access this network, you need to get the equivalent WEP key. See the documentation that came with the Apple AirPort base station for more information.
• If IP address filtering is set up, verify that the unit address is listed.
• If MAC address filtering is set up, verify that the unit address is listed. NOTE: HP cannot set up or change the SSID, WEP key or WPA passphrase. This information is required before connecting the HP All-in-One to the wireless network.

Step two: Connect to an integrated wireless WLAN 802.11 network Follow the procedure to connect the unit to the wireless infrastructure network:

1. Insert the software CD.
2. Click Install .
3. Click Next on the Please Allow All HP Install Wizard Processes screen.
4. Select Easy Install on the Choose Easy Install or Advanced Install screen.
5. Select Through the Network on the Connection Type screen. Figure 2: Connection Type screen
6. When it doesn’t find your device, click Next . Figure 3: Using Network Setup
7. Plug in your device via USB (it will tell you when to disconnect later). Figure 4: Making a connection to your all-in-one
8. Select your network from the list, and click Next . Figure 5: Wireless Network Setup
9. Enter your WEP key (if applicable). Figure 6: Specifying your network security settings
10. Once it has completed connecting to the network, click Next . Figure 7: Network connecting completed
11. Disconnect the USB cable from the computer and the All-in-One . Figure 8: Disconnecting the USB cable
12. Click Finish to complete the software installation process. Figure 9: Software installation complete

A firewall is a hardware or software solution to enforce security policies. In the physical security analogy, a firewall is equivalent to a door ...

A firewall is a system that secures a network, shielding it from access by unauthorized users. Firewalls can be implemented in software, hardware or a combination of both. In addition to preventing unrestricted access into a network, a firewall can also restrict data from flowing out of

A system or combination of systems that enforces a boundary between two or more networks.

A barrier in a network that will only pass packets authorized to reach the other side.

A firewall prevents unauthorised access to or from a private network. A firewall can be installed either via hardware or software or a combination of both and it is designed to prevent and filter unauthorised access via the internet to a private network.

A firewall is a safeguard utilized by many Local Area Networks (LANs) or Wide Area Networks (WANs) to protect the network from unauthorized access from the outside. They are basically gates that verify the users before they leave or enter the network by way of a User ID, Password or IP address.

A security barrier placed between an organization's internal computer network - either its IS system or intranet - and the Internet. It keeps your information in, and unwanted people out. It consists of one or more routers, which accept, reject, or edit transmitted information and requests.

A method of protecting one network from another network. A firewall blocks unwanted access to the protected network while giving the protected network access to networks outside of the firewall. ...

A form of Internet security that typically stands between a private network and the external Internet (although internal firewalls are also now increasingly common) and is designed to prevent unwanted traffic from passing.

A combination hardware and software buffer that many companies or organizations have in place between their internal networks and the Internet. A firewall allows only specific kinds of messages from the Internet to flow in and out of the internal network. ...

A method for keeping a network secure from intruders. It can be a single router that filters out unwanted packets or may comprise a combination of routers and servers each performing some type of firewall processing. ...

Specialized software and/or hardware designed to prohibit unauthorized access to information on a computer network.

Any of a number of security schemes that prevent unauthorized users from gaining access to a computer network or that monitor transfers of information to and from the network.

a security device that protects a computer network by isolating it from the rest of the Internet and by only permitting specific traffic to pass in and out.