My laptop says "The settings saved on this computer for the network do not match the requirements of the network"

How you are connected to the Internet? Let me know first. Are you connected to WiFi network or connected the ISP direct to your LAN port or you are connected to a Router?

Because as you are connected to the Internet you may face different type of problems, if the connection is not configured correctly. One thing that if your connected to the ISP's WIFI network because check with them there may be options like automatic assign of IP address or configuring them manually, please contact the ISP if you are connected in this way.

Second thing is that if you connected to WiFi, in your network like the ISP is connected to a router and then your laptop is connecting to that router through WiFi you need to check the settings of that router, once refer manual for the brief steps to be followed to configure the router.

If you connected to a LAN to the router, check the IP address and other things like using of proxy, any programme in your laptop is denying to access to internet or once check with the wireless drivers and lan drivers and install a good Internet Security Software to protect against the virus, trojans, malware, spyware...etc

So today I bought a Radeon HD 7750 to replace my Geforce GT 420. Since I have no experience, it took my hours of confusion and frustration. Finally I figured it out and installed it. After I rebooted my computer, my Ethernet cable internet was gone and I can't connected to the wireless connection either. I have searched the web for a solution on my other computer but no success. When I diagnose it says my network adapter is experiencing driver or hardware problem.

So here the problem is with the device drivers, wither your PC time maybe wrong, if not correct it. One more thing is here to check is the digital signatures given by the device drivers are prefect, If they are not correct you need to download the drivers from the vendors site. After installing graphics you were unable to connect to internet. You need to check with wireless adapter or either the installation path is going to the graphics driver folder, choose the different path here.

After installing if the same problem persists, go to device manager and disable the wireless device and install the graphic card driver. If the driver installed perfectly it's fine you can enable the wireless adapter do the browsing.

If the same problem repeats you need to check with driver download the latest drivers from the website, choose the correct operating system which you are using either 32bit or 64bit.

Every time you need to aware of that when you are connected to a Internet or Network place, install a good Internet Security software's or at least a antivirus programme...etc.

I have a vaio laptop loaded with windows vista and I have a problem. I use usb modem for internet but recently when I connected to the internet and the bottom right corner almost at the end of the task bar a yellow triangle will appear saying limited access and some times the status is local and limited. I also checked network status and it say's IPv6 limited IPv4 limited. Or some times IPv6 limited IPv4 local only. Please help how do I fix this problem.

USB Modem is now a days booming in the industry, where anyone can afford to buy boosting with 3G speeds. It is loaded with windows drivers when you plug in it automatically installs it's drivers and open's up the dialer you can connect easily to the internet. When you need you can afford to buy new one as postpaid and prepaid are the options available. Great plans are also available but the charges are high when compared to a Broadband connection.

As you connecting to internet using this device there might be no balance to connect to the internet in case if you are using a prepaid.connection, check for the balance.One more reason is your device drivers are not installed correctly or the device which you are using is not compatible with the operating system. Try to use the device with other laptop then you will come to know whether the problem of USB Modem or Laptop or you service providers.

If you are all set right as per above reasons, please contact the customer care for further details.

Every night at around 5-6, my internet disconnects. When I am playing call of duty, I get signed out and when I try to watch a video on youtube, it wont work. After 2minutes, It starts to work, but 10 minutes later its the same story. It works in the day perfectly. Someone please help me

There might be so many reasons for the internet disconnection. As it is particularly disconnecting at same time period there might be any software installed in your PC. There are some softwares are there, they handle internet connection manually so we can schedule the internet disconnection time and wake on. So beware that any this type software installed on your machine check throughly and uninstall the same.

Some scheduled tasks also do this type things, so check your windows scheduled tasks, disable or delete the tasks aswell.

If your is system is perfect there might be switching off the router by your ISP. Check with those Internet service provider, Contact them and explain the problem.

If you have any router that router might have over heating or swithcing off at point of time , Once refer router manual.

As if you are using windows 7 and avast antivirus, I think the antivirus blocking all the applications which you are using.

You might need to know which applications you are using. Some antivirus lets the users decide the behavior or permissions of a application, after installing antivirus they asks you the permission to connect to the internet. If that application is trusted, you know that application you can allow the application or in case you can block it.

Windows Firewall is also blocks certain application that are related to 3rd party application. If the application given by the Microsoft that is the trusted software so in this case windows firewall allows that application to access internet with out any intimation. If that application related to 3rd party, you were asked to connect to internet, in here windows firewall asks you the permission if that is trusted or you know that software you can grant access.

All internet security software's have permission grant access feature. In here we need allow each application to grant access to internet.  

There might be n number of reasons if there is no internet access.

Firstly check with the hardware you are using for your lan card and LAN card drivers should be updated prior to the vendor. If there are no correct or updated drivers the lan card is incompatible with the OS. It may not work properly.

Second thing make sure you know how to connect to internet by assigning IP address to connect into a LAN. If you are using a router or modem as per their configurations sometimes IP is assigned automatically by DHCP.

If you are using a modem, you need to create a dial up connection according to your internet service provider and a username and password required.

if you are connecting to a switch or router , make sure the lan cable(cat5 cable) is in good condition and use the climper to climp RJ45 clips.

If you are using broadband, some internet service providers may have login page.

If you have correct with all the above details your PC might have infected with virus or trojans etc. 

Before connecting to Internet make sure your PC is loaded with good antivirus system or internet security.