Laptop not connecting??

Question

I have 3 computers hooked to a home network: The main PC, a Wireless Desktop connection, and a wireless laptop connection. All 3 go on the internet just fine normally. All of a sudden, the laptop will not connect at all, to anything, through any shortcut....But the other 2 are fine.I keep getting errors, this page cannot be displayed...and something about DNS error. It worked just fine maybe 2 hours ago. Any ideas what is wrong??

I have IE and Firefox...I tried with both

And according to the computer, the network is up and running with excellent connection. It even names the wireless connection as connected....still, nothing

And according to the computer, the network is up and running with excellent connection. It even names the wireless connection as connected....still, nothing

And according to the computer, the network is up and running with excellent connection. It even names the wireless connection as connected....still, nothing

And according to the computer, the network is up and running with excellent connection. It even names the wireless connection as connected....still, nothing

Answer 1

Sometimes, getting a DNS lookup error is the first symptom of having lost your broadband connection, so check that you still have a connection before delving any further. A simple test is to attempt a traceroute or ping to the DNS server(s) themselves; see Finding the DNS server address(es).

If, while browsing the web, you receive a web page which says simply DNS error, then this is most likely a fault with a web proxy cache (transparent or explicit), and not a DNS error at all. You might be able to work around this problem by configuring an explicit web proxy.

You can check whether a DNS error is real, or the invention of a web proxy, by looking up the sought host name in the DNS system yourself. For instance, if you were having difficulty browsing the URL http://www.fredbloggs.com/somepage.html, you would try looking up www.fredbloggs.com in the DNS system; see DNS Lookups above. If you get a reply, there is not a problem with the DNS system. The reply will tell you whether the DNS name exists or not.

In Internet Explorer for Windows, a genuine DNS lookup error yields a dummy page which starts The page cannot be displayed, and finishes with the lines:

Cannot find server or DNS Error
Internet Explorer

Other browsers produce a popup error dialog. The most common cause of such a DNS error is typing a mis-spelt URL, or following a link to a site which no longer exists.

An ISP's DNS servers can cache lookups from DNS names to IP addresses, and vice-versa, for as long as specified by the owner of the DNS name. If the association between names and addresses changes, and the original owner did not reduce the allowed cache time in advance, then it can take a day or more for an ISP's DNS server to catch up with external changes. There is nothing that you can easily do to work around this. Experts can use the advanced interactive facilities of nslookup to force the lookup to be done by the Authoritative server, thus bypassing the ISP's DNS caches. However, in the case of web sites which are virtual hosts on shared web servers, sending a web browser to the IP address of the site will not work, as the web server requires the name of the site in the request in order to know which virtual site to serve in reply.

Answer 2

Your laptop should still have a port for a (CAT-5) cable to be inserted so the first test before doing anything else is to try a direct connection through a wire. If you can connect that way, there is something not right about your wireless connection or the card is failing. You should also compare your internet options and your network settings to one of the systems that is still working.

There are several possibilities, but the mention of wireless leads me to ask if you are certain you are connecting through your Internet Service Provider. My nearest neighbor has a wireless signal that occasionally overpowers mine. If I don't pay attention, I connect to his ISP, which doesn't recognise me.

Believe it or not, there are applications, especially, spamware that will change settings without telling you. If you have changed your virus software recently or added a firewall to your laptop, you might have sealed the window too tightly so check your settings, especially firewall settings. I am assuming that you have up-to-date virus software. If not, you are probably infected with something.

Another possibility is that your wireless card is bad. This could also account for the sudden failure. If you aren't sure how to test it or don't trust the answers you get from the system, take it to a decent computer repair shop and ask them to test it. If you have an internal card, you can disable it and buy an external card that you insert. You can also replace the card with another internal card, but if you do that check to see if your laptop is still under warranty with the manufacturer since the manufacturer might replace the card for free and anyone who opens the case of a laptop other than manufacturer authorised repair shops will immediately void the warranty.

I hope this is helpful to you. Network problems can be frustrating.

Answer 3

Does windows report that it is connected to the network at all? If so, right click on the wireless icon in your system tray and choose the "Repair" option, and see if that fixes the problem.

Answer 4

Laptops have batteries.....you charge the battery, after which you will walk around without wires and use the laptop till the battery existence runs out and you ought to recharge it returned. resembling cellular telephones, in a manner.

Answer 5

Hit repair on the internet icon and it will fix it for you.

Answer 6

if you just complete a few quick tasks on this site they'll send you a sony laptop, completely free of charge!!