How to Fix DNS or Cannot Find Server Error

All of us, who have used the Internet have come across DNS error 'cannot find server'. Why is it, that we get this error? Let's get an answer.

I had just logged onto the Internet, but I was not able to reach the page I was looking for, as I kept getting the DNS error - cannot find server. I tried again and again, but in vain. That is when a friend suggested, I talk to my Internet service provider. They were also not able to help me. That is when I decided to take the issue in my hand. And I found out, that the DNS error of not being able to find server is, more often than not, your computer's inability to make a two-way connection to the Internet. If you have had an interrupted connection to the Internet, then the issue lies with your personal computer itself. All said and done this error will restrict you from using Internet technology to the fullest.

How to Fix DNS Error - Server Cannot be Found

The first step is to refresh the page, which failed to load. If the page reloads, then this was just a momentary lapse in service, which happens even to the best Internet service provider. If the problem is not resolved, you will need to follow the following steps.
  • Check the page address you have typed into the address bar. There is a chance, that you may have misspelled the address. In most cases, an error in the URL address gives rise to this error message.
  • Try to refresh the page, you will now be able to view the web page, you are looking for.
  • If the above mentioned step, is not able to solve the problem, you will have to go to connection settings. You will have to ensure, that the settings, match with those of the Internet service provider or that of the local area network.
  • To do this you will have to click on the tools menu on the tool-bar, then click on Internet options. There you will come across the Connections tab, under which you will notice Settings.
  • Now you can try to refresh the page and check, if you are able go to the web page you have been looking for.
  • If this option does not work either, then click on the link 'Detect Network Settings' on the Internet Explorer page, which accompanies the error message to let Windows try to find an optimum connection to the Internet.
  • Now again refresh the page.
  • You can download DNS server error software off the Internet, if all the above options do not work.
  • These software are free on some of the websites, and they would be able to identify the problem. A PS3 DNS error problem can also be corrected by downloading this software.
In case you persistently face the problem DNS error server cannot be found, you may have to put in a request for a new IIS Certificate. Depending on the situation you may have to renew the existing license. The certificate will be issued to you or you will be asked to check back within 10 days. In case the policy module has been set to automatically issue the request, you will not have to put in a request yourself. Apart from all these steps for DNS error cannot find server, you may want to check the modem or router for any sort of irregularities. In case there are some lights flashing or some of them are not seen at all, which ideally should be on, then the server error is most probably not correctable on your computer. You will have to get in touch with your Internet service provider to rectify the problem.

How to Find a MAC Address

Laptop People
What is a MAC address and why is it essential that it be located? How to find it on your computer? If you are configuring your router, these questions are bound to come to your mind.

Computer networking is a very precise form of applied science and to understand it completely, you need to study many of its intricacies. One of the things that you need to know while setting up your home Ethernet network or home wireless network, you will need to know what are known as MAC addresses. You need these addresses, when setting up a wireless network and configuring your router. One way of securing your wireless network is to use filters based on these addresses, to restrict access.

What is MAC Address?

The short form - MAC stands for Media Access Control. A Media Access Control address is assigned as a unique identifier to every network adapter fitted in any device that is connected in an Ethernet or wireless network. Every device connected to the Internet has an inbuilt network interface card that enables its connection to an Ethernet network or wireless network. Thus every device with a network adapter like your own laptop computer can be identified by its MAC number.

The address, also known as physical address or hardware address is stored in the read only memory of the network interface card. According to the IEEE 802 standard, a convention is set for how these addresses are written. The number is written as a string of six hexadecimal numbers, separated into six groups with two numbers in each. They can be retrieved through the installed operating system on a device.

How to Find It?

Here are ways in which you can retrieve the address on any operating system.

On Windows
If you are using a computer operating system of the Windows family (including Windows XP, Windows Vista and Windows 7), to find the MAC address, you will need to open 'Command Prompt', which can be located in Start > Accessories on Windows Vista and Windows 7 machines. Once you open the command prompt, first type in 'cmd'. Then type in 'ipconfig/all'. This will display a list of details which includes the address. It will be listed as 'Physical Address'. It can be identified as a 12 digit hexadecimal number separated in groups of two each and with dashes in between.

On a Mac
To find the address on a Mac OS X snow leopard based machine, select 'System Preferences' from the Mac Menu. Among the many icons that you will see in the windows that opens next, click on 'Network' icon. A windows will open with various tabs. To get address, click on the tab that has 'Ethernet' written on it (if you have an ethernet connection) and it will be displayed as 'Ethernet ID'. To find the wireless network card or Airport card address, click on the Airport tab. You will see its address displayed below as AirPort ID.

On Linux
On any Linux system, to find the MAC address, you must first be signed in as root. Once you are signed in as root user, type 'ifconfig -a ' in the command terminal. You will see a lot of information displayed below. The number listed as 'HWaddr' (Hardware Address) is the address of that computer's network adapter.

All you have to do is follow the simple instructions explained above and you will be able to retrieve the information you need. Once you find the addresses of the computers that are going to be connected in your home network and add them to the filter list, only they will be granted exclusive access to the network. That way, you can prevent unauthorized access to your network.

Wireless Bridge Vs. Access Point

Wireless Bridge
Wireless bridges and access points offer radio link connectivity over a computer network, but they are structurally and functionally designed to serve slightly different purposes. The wireless bridge vs access point comparison presented in this article is aimed at clarifying the differences between the functionality and applications of both devices.

Setting up a vast wireless network for a corporate office space requires the installation of many networking devices, that facilitate connectivity over the entire network. Two such devices are 'Wireless Bridges' and 'Wireless Access Points'. Since both have overlapping areas of functionality, there seems to be confusion regarding how they differ from each other.

What are Wireless Bridges?
Let me first define what is meant by a 'Network Bridge'. A computer network tends to be divided into various segments that need to be integrated together. A network bridge connects such divided network segments together, facilitating data sharing. Before the advent of Wi-Fi technology, network bridges were connected through wired ethernet cables. Specifically, in context of the OSI model, network bridges connect segments on layer 2 (data link layer).

These are intelligent devices compared to hubs and repeaters, that control data flow to and fro, from the connected network segments. A wireless bridge performs the same function of linking network segments, but it does that through a Wi-Fi link, instead of a wired ethernet link. It can connect two networks together with a radio link, to facilitate connectivity and data transfer between them.

Such bridges may also be used to connect an ethernet network, with an access point or wireless router, for Internet connectivity. Using a 'Wireless Distribution System', bridges are set up to connect multiple networks. There are more than one types of wireless bridges, ranging from basic ones, which facilitate ethernet connectivity with a wireless access point, to ones that double up as a wireless access point and a bridge. That seems to be the source of confusion between the two devices.

What are Wireless Access Points?
As their name suggests, wireless access points primarily provide Internet access by connecting wireless devices with routers. They act as extenders of a Wi-Fi network, by directly providing Internet access over long distances. Popularly known as 'Wireless Hotspots', they are some of the most widely used networking instruments. Thus a wireless access point provides Internet and LAN connectivity to multiple devices simultaneously.

Some wireless access points also provide the functionality of a wireless bridge, by providing connectivity between two wireless networks. Modern access points can connect more than 200 wireless devices simultaneously. Some wireless access points are in fact wireless routers which directly provide Internet access, through connection with a modem.

Wireless Bridge Vs Access Point
The central point of difference between the two devices lies in their functionality. While wireless bridges are designed to integrate two physically separated networks through a radio link, an access point connects multiple wireless devices with a router. Thus, a wireless bridge connects two computer clusters together and a wireless bridge connects multiple devices with a single Internet connection simultaneously. A bridge can also be used to connect an existing ethernet network with an access point.

Though wireless bridges and access points were separately manufactured before, today a combination of these two devices is more popularly used. These devices offer both bridging and multiple device wireless connectivity. Therefore, the boundary between the functionality of both devices has become blurred. If you are thinking of buying a wireless access point/bridge device, make sure that you go for a 802.11n wireless networking standard based device, which offers the highest data transmission speed currently.