Frequently Asked Questions

How do i troubleshoot network connections problem?

Troubleshoot network connection problems

Networking home computers running different versions of Windows.If the problem began after you installed new software, check your connection settings to see if they have been changed.



To check connection settings

  1. Open Network Connections by clicking the Start button Picture of the Start button, clicking Control Panel, clicking Network and Internet, clicking Network and Sharing Center, and then clicking Manage network connections.
  2. Right-click the connection, and then click Properties. Administrator permission required If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
If these steps don't solve the problem, look for a specific problem in the following table.
Problem
Possible solutions
Can’t connect to other computers or share files and printers on a home network
  • Make sure network discovery is turned on.



    To turn on network discovery

  • Make sure you have shared the files or printers.



    To share files and printers

  • If password protected sharing is enabled, you have two options.



    More information

  • Make sure the computer that you want to connect to has at least one shared folder.
  • Make sure all computers are in the same workgroup. See Join or create a workgroup.
  • In addition to enabling file sharing, make sure you set sharing properties on the folder or printer you want to share.



    More information

  • Go to the website of your router manufacturer to download and install the latest firmware for your router.
Can't connect to a home network (wireless connection)
  • Make sure the router and modem are turned on.
  • If you're using a laptop, make sure the wireless switch on the front, side, or back edge of the laptop is turned on.
  • If Windows doesn’t detect a network that you think is in range of your computer, open Help and Support and search for "Troubleshoot problems finding wireless networks."
  • Make sure the network adapter is working correctly.



    To verify that a network adapter is working correctly

  • Download and install the latest version of the network adapter driver from the manufacturer's website.
  • Clear the DNS resolver cache. For more information, seeDNS (Domain Name System): frequently asked questions.
Can't connect to a home network (wired connection)
  • Make sure the router and modem are turned on.
  • Make sure that the Ethernet cable is inserted into the network adapter in your computer.Illustration of an Ethernet cableEthernet cable
  • Make sure the Ethernet cable is not defective. Test this by using a different cable that you know works properly.
  • Make sure the Ethernet cable is connected to the correct port on the router.



    More information

  • There might be problems with your network adapter. Check your local area network (LAN)connection.



    To check your LAN connection

  • Make sure the network adapter is working correctly.



    To verify that a network adapter is working correctly

  • Download and install the latest version of the network adapter driver from the manufacturer's website.
  • Clear the DNS resolver cache. For more information, seeDNS (Domain Name System): frequently asked questions.
Can't remember network key
If you've forgotten your network key, and there is no one else who knows it, you'll need to set up your wireless router again. See Set up a wireless router.
Network connection is intermittent (periodically disconnects)
Network connection is too slow
  • Go to the manufacturer's website to check for more recent drivers for your network adapter.
  • Make sure you have the latest Windows Vista service packs installed.
  • Try turning off autotuning.



    To turn off autotuning

  • Make sure the capacities of the router and the network adapter are compatible.



    More information

  • If you’re using a wired connection, try modifying the flow control setting.



    To modify the flow control setting

Can’t connect to a workplace network from home (or another location) using a VPN connection
  • Make sure you typed the virtual private network (VPN) server name exactly as provided by your network administrator.
  • Make sure you have an active Internet connection.
  • If your modem is external, make sure that the modem power is turned on.
  • Check your encryption settings.



    More information

  • Contact your network administrator for assistance.



    More information

Can't set up an incoming connection



To set up an incoming connection

Can't share the root of a drive



To share the root of a drive

There's a duplicate IP address on the network
I need advanced information about network troubleshooting
See A Support Guide for Wireless Diagnostics and Troubleshooting


 Last updated Wed, Mar 4 2015 8:41pm

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