Solve your Windows Wifi Connection Problems with a few minor tweaks
Sitting in my hotel lobby in Mexico I was surfing away on my MacBook when I noticed a lady sitting across from me looking increasingly frustrated trying to work on her HP laptop so I offered to help her out.
She explained that Windows Vista simply refused to connect properly to any of the three wireless routers that were available here. I knew they were working at least to some degree as my MacBook and iPhone were connected.
It turns out that the problem is caused by a combination of things; firstly some routers don’t comply to the wireless standards 100% as they should be and secondly Windows trys to auto-tune the connection so that it can utilize bandwidth.
It is this combination of factors that is causing the connections to drop almost immediately after authentication.
If this is happening you will probably be able to authenticate with the WEP or WPA password required and you may get an IP Address also but internet connectivity will never actually be established.
Full instructions on solving this below.
Solution: Disable Auto Tuning
- Click Start
- Type Command Prompt and right click on the Command Prompt icon above the search bar and choose Run as Administrator..
- At the command prompt, type the following and press Enter:
netsh interface tcp set global rss=disabled autotuninglevel=disabled
- Close the command prompt
- Try reconnecting to the wireless network again
DNS Issue Causes Problem Joining A Domain in Windows 2007 and Windows 2008 Server
The following error occurred attempting to join the domain “your-domain-name”
An attempt to resolve the DNS name of a domain controller in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resolve DNS names in the target domain. For information about network troubleshooting, see Windows Help.
This error is being caused because the primary domain controller is not specified as the first DNS server in your TCP/IP settings on the system that you’re trying to join to the domain.
Even if your domain controller is not your DNS server, temporarily set the IP address of the domain controller as your first DNS server, join the domain and then change your DNS Server settings back to the way they were before.
Full instructions below.
Windows 7 or 2008 Server Instructions
- Click Start
- In the Search Programs and files field type View Network Connections and hit Enter
- When your Network Connections appear, right click on your active connection > click Properties
- Double-click Internet Protocol Version (TCP/IPv4)
- Update the Preferred DNS Server field with the IP address of your primary domain controller > Click OK > OK again
- Now try to join your domain again.
- Optionally, after successfully joining your domain you can change your DNS servers back.