Computer networks are not limited to hardwired connections. Many computer networks utilize wireless networking, which allows computer systems with special radio frequency adapters to connect to the network.Many home computer. How to Automatically Connect to a Wireless Network in Windows Vista. Typically, when a Windows Vista laptop is equipped with WiFi, the user connects the laptop to different WiFi networks, depending on her location. Although. Windows 7 on wired computer prevents wireless connections to router - Configuration. I had a similar problem, but probably not the same as yours. I followed the instructions for using my Toshiba laptop with my Linksys WRT5. G router with Windows. It said to connect the laptop to the router with a wire cable, which I did. The router is rated at "G" speeds which is the wireless speed; I got 1. So, I was getting about 5. I could not get the laptop's wireless connection to work. I even tried using "Network Magic", the new Cisco software they acquired along with Pure Networks; it indicated the connection was being made between the router and my laptop's wireless adapter, but no internet connection. I struggled with this for a couple days; since I had not used VISTA or Windows. I stuck with the instructions, and tried every tip and trick I could find listed. No luck. Then I decided to put the written instructions aside and see what my instincts developed over several decades of experience would show me. It wasn't long before I realized that the wireless adapter in the laptop did not have its own 'NIC', so to speak, but used the regular NIC which the laptop used for wired connections to a network. Hence, using the furnished instructions, I was attempting to connect to a wireless node on the network at the same time as I was connected to a hard- wired node, which meant the laptop had to establish two separate connections to the router: one wired, and one wireless. It was then easy to see that the laptop couldn't do that with only one "NIC" for both connections! I used the wired connection to the router to set it up and make sure all was well with it, including use of the internet. I then pulled the plug on the hard wired connection, and went to the wireless setup and connect routines in the laptop, which now worked just fine because they could use the internal "NIC" chipset of the laptop, which it could not do when the hard wired connection was using the NIC chipset. This fooled me for a while because I can connect both a wireless and hard wired connection to the router on my desktops, because they use separate NICs for each connection; the wireless adapter has its own network interface chips rather than sharing those used for hard wired connections. I have to admit I feel sheepish about disclosing this, as it makes me look pretty dumb, to not have realized this immediately, as soon as I read the instructions telling me to connect the hard wire to the computer (to set up the router, test it and the internet, etc.) while attempting to connect the wireless also. As a design engineer who has designed a wide assortment of peripherals for PCs and laptops I should have seen that problem immediately. However, I didn't at first realize that the laptop, in order to save space and power, used the network interface already present for the hard wired connection, and added only the "radio" part of the wireless adapter, with the "radio" doing the transmitting and receiving, and interface to the NIC already present in the laptop. Obviously, with a single channel NIC interface between the computer and the router, it can handle only one connection, and, if I first established a hard wired connection to the router, then attempted to use the same NIC for the wireless connection, it wasn't going to work! Only when I released the NIC from the hard wired connection to the router was the wireless connection able to use the NIC and establish a connection. Sorry this is so long and 'wordy', but I wanted to explain thoroughly in case it may help some others I have seen on the internet with the same problem, ie, not being able to connect wirelessly when the hard wired connection is already established. Can Connect to Wireless Router, but not to the Internet? Have you ever run into the situation where you could connect your laptop to your wireless router, but could not browse the Internet? There could be several things going on in this kind of situation, either your computer has a problem or the router cannot connect to the Internet via your ISP. So if you’re able to connect to a wireless network, but can’t get out to the Internet, then first check to see if it’s your compute or the router. You can do this by trying to connect to the Internet from another computer connected to the same wireless network. If the other computer can browse the Internet fine, then your computer is having issues. If not, you should try restarting the wireless router along with your cable modem or ISP router, if you have one. If that doesn’t work, call your ISP and they can run some tests to see if they can reach your router. On the other hand, if you have a problem with your laptop connectivity, it’s much harder to solve! Why? Because there are basically a lot of reasons why an Internet connection may be be functioning properly. I’ll try to go through as many solutions as possible to fix this and hopefully one of them works for you! So if other computers on the network can connect to the wireless router and to the Internet, first let’s see if it’s a problem with your wireless or your entire Internet connection. Connect your computer to the router using a Ethernet cable and see if you can connect to the Internet. If so, that means there is something wrong with just your wireless network connection. If you can’t connect, your TCP/IP Internet stack may be corrupted. Try these fixes. Also, make sure your Wireless switch is set to ON before moving on because a lot of times the Wireless on/off switch accidenality gets switched to OFF. Method 1 – Reset TCP/IP Stack. You can try to reset the TCP/IP stack in Windows to possible repair the Internet connection if it is corrupted. Go to Start, Run and type in CMD. Type the following commands: netsh int ip reset reset. Reboot your computer and see if the Internet connection works. If you have more serious problems with Winsock, read my post from OTT on how to repair Winsock errors in Windows. Method 2 – Update driver in Device Manager. Sometimes Windows can have problems with a particular wireless card because of it’s driver. This problem especially occurs on Windows Vista machines that have older drivers for wireless card. Go to Device Manager by right- clicking on My Computer and going to Properties. On the Hardware tab click on Device Manager. If you see anything with an exclamation point or red X under network adapters, that might be causing the network connection problems. Download the latest drivers from the manufacturers website on another computer and copy them over using a USB stick or CD. Update the drivers and restart the computer. Method 3 – Reset wireless network. Sometimes your wireless network may have MAC address filtering enabled, which means only certain computers can connect to the router. You can quickly tell if this is the case by simple resetting the wireless router to default factory settings. This will remove all security, filtering, port forwarding, or any other settings that could possibly be preventing your computer from connecting to the Internet. Method 4 – Update computer hardware drivers. Sometimes you simply have to update your laptop hardware drivers for all devices such as the BIOS, firmware, system drivers, etc. It’s also a good idea to update the operating system with all the latest service packs and patches. The problem may not be related to your wireless network card per say, but on the hardware that your OS is running on. Method 5 – Unsupported wireless security settings. Another issue that can cause connectivity problems to the Internet is unsupported wireless security settings. Sometimes if you buy a new wireless router and setup security using WPA or some other strong encryption, your wireless card may not support it. In that case, try to turn off all wireless security and see if that solves your problem. It’s best to just make the network an unsecured wireless network temporarily so that you can figure out whether it’s the security settings that are causing the problem. If you can connect to the Internet when there is no security, then try a different protocol like WEP. I really can’t think of any other way to fix this problem other than trying a full reformat of your computer. However, if it’s a hardware issue, even that won’t fix the problem. If you tried something else that fixed your problem, post it in the comments!
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September 2016
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