Skip Links

Network World

  • Social Web 
  • Email 
  • Close

The wireless connection works, but I can't get on the 'Net

Nutter's Help Desk By Ron Nutter , Network World , 05/19/2008

I was wondering why I have a wireless network that I can connect to and it says I have a great connection, but when I'm connected it doesn't allow me to browse the Internet or anything. Are there any settings or anything I could change to get the thing working. Thanks.
-- Nathan Fuenffinger

We need to go through a process of elimination to find the cause or causes for your problem. The first thing I would try is ping. Make sure that you can ping the default router for your network and other devices on the network. You should be able to do this since you would appear to be getting an IP address but we need to make sure that you can talk to other devices on the network.

If you can ping the other devices on the network, that says that basic connectivity is in place. If you can't ping, it may be necessary to temporarily disable the firewalls on the other computers to get a ping through. If things start working but you still can't browse the local network, you may need to look at the firewall settings of the computer that you are having the problem with. You may need to allow the IP range to pass through without any blocking or filtering of traffic.

If you are still having problems, see if there are any driver updates for the network card in the problem computer. Also, try using a USB type network card to see if the problem stays with the computer or with the network card. If the problem goes away with the USB network card, this would appear to indicate a problem with the driver or the IP stack for the card.

Try assigning a static IP address, subnet mask and gateway for the problem network card for the built in network card. If this works, this could point to a DHCP related problem, possibly with the DHCP server handing out bad or corrupted information or with the way that the network card is getting the information. This would be a good time to break out your network sniffer to see how the traffic is being sent on the network and being presented to the computer in question. This might also help give you some ideas as to why it can't browse the local network.

Partner Content

Company Description

Emerson Network Power and its Liebert power and cooling technologies increase IT system flexibility and availability, while lowering the total cost of ownership.

Power and Cooling Guidelines

Learn how to optimize power and cooling in network access rooms to keep equipment operating at peak performance and proactively monitor changes.

Download this white paper

Business-Critical Continuity

Read about Sequent and how they implemented a new data center to meet current requirements while easily scaling to support projected growth.

Download this case study

Cutting Energy Costs

Reduce cooling system energy costs by 30 to 45 percent through five data center efficiency strategies.

Download this white paper

Comments (2)
Login
Forgot your account info?

If you have a 169ip, It can also be the encryption or SSIDBy Anonymous on June 20, 2008, 5:08 pm1. Try a repair (or an ipconfig/release ipconfig/renew on win2000.) If you're getting a 169 ip after that, then try this. See if it works with the encryption (WEP...

Reply | Read entire comment

Network Won't OperateBy Anonymous on May 27, 2008, 11:35 amLets not forget security setups...

Reply | Read entire comment

View all comments

Add comment
Anonymous comments subject to approval. Register here for member benefits.
Have a NetworkWorld account? Log in here. Register now for a free account.

Videos

rssRss Feed

Whitepapers

File Integrity Monitoring: Secure Your Virtual and Physical IT Environments

Discover the capabilities your file integrity monitoring solution should have to effectively secure...

6 Simple Steps to Disaster Recovery Planning

Discover the six simple steps you can take today to create - or bolster - your disaster recovery...

The Trend from UNIX to Linux in SAP(r) Data Centers

Through our infrastructure software and ecosystem of partnerships, Novell harmoniously integrates...

Webcasts

PoE Plus: Impact on the PoE Market

The standard for Power over Ethernet (PoE), IEEE Std. 802.3af(tm)-2003, advanced networking,...

Harnessing the power of communications to increase workplace performance

Due to the convergence of IT and telecommunications technologies, the business workplace has been...

Stay out of the headlines: Detecting and preventing network intrusions

How do YOU stay out of the headlines? There is no denying that risk exists in our computer-driven...

Special Reports

The New Network/System Management Challenges

Increasingly popular technologies such as virtualization, wireless networking and data center...

How to lower software costs, complexity

Discover how Software as a Service is the economical alternative to expensive on-site software,...

Get instant email notification when white papers, webcasts, executive guides are added to our library. Stay informed and up-to-date with the latest on IT Technologies with Network World's Resource Alerts.