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Troubleshooting Guide - Internet Connection Problems

3/27/2012 6:41:33 PM

Troubleshooting Guide

Internet Connection Problems

Dropped and slow Internet connections can ruin your workday, especially if you rely on email and Web connectivity to get things done. In this article, we'll help you to troubleshoot your Internet connection problems, so you can get back on track.

Troubleshoot A Dropped Connection

Follow these steps if your connection occasionally drops out.

1.   Make sure that your router is still functional. Generally, there are LEDs (light-emitting diodes) on the front of the router that indicate activity You may also want to switch off both your router and cable/DSL (Digital Subscriber Line) modem, wait a few seconds, and then turn them both back on. This is called power cycling, because you essentially restart the devices by powering them off and back on.

Description: Check the LEDs in the front of the router to see if there's any activity. Here, you can see that ports two and four are active.

Check the LEDs in the front of the router to see if there's any activity. Here, you can see that ports two and four are active.

2.   Next, check the cable connections running from your cable/DSL modem to the router, as well as from your router to your PC. It's possible that a cable could have come loose, which is preventing the signal from reaching your local computers. You may also want to try switching out the Ethernet cable with one you know works, which will eliminate the possibility of a bad cable. Examine any cables for damage, such as cuts or kinks, that could cause the dropped connection.

Description: Ensure that your Ethernet cables are securely connected. The connector should sit firmly in the port.

Ensure that your Ethernet cables are securely connected. The connector should sit firmly in the port.

3.   By this time, some of the computers on your network should be able to connect to the Internet. If one PC is having problems, you can use Windows Network Diagnostics to fix the issue. You'll know a PC is having trouble connecting to the Internet when a red X icon appears over the network connection icon in the System Tray. You may also see a yellow triangle with an exclamation mark in the center, which indicates that you're connected to the network but without access to the Internet. To run Windows Network Diagnostics in Windows 7, right-click the network connection icon and select Trouble-shoot Problems. Windows immediately begins to apply fixes, such as renewing your IP (Internet Protocol) address and resetting your PC's network adapter, to try and solve the problem.

Description: Windows Network Diagnostics can help fix connection issues that may have been caused by your PC.

Windows Network Diagnostics can help fix connection issues that may have been caused by your PC.

4.   If the computer connects to the Internet via Wi-Fi, it's possible that the wireless router isn't capable of sending a reliable signal to the PC's location. Try moving the computer and router closer together to see if the signal is stronger with less distance. It's also possible that some material or hardware in the room is causing interference with the wireless signal, so you may be forced to move the computer into a different room. You'll want to try the same technique if you're experiencing a slow Internet connection.

Description: Wi-Fi signals have trouble moving past thick, solid objects, such as metal and brick, while wood and plaster don't pose as much of an issue.

Wi-Fi signals have trouble moving past thick, solid objects, such as metal and brick, while wood and plaster don't pose as much of an issue.

Troubleshoot A Slow Connection

Try out these troubleshooting techniques if your connection seems slow.

1.    Similar to a dropped connection, the best way to start troubleshooting a slow connection is to power cycle your cable/DSL modem and router.

Description: Look in the Network And Sharing Center to see if there are any problems with your connection.

Look in the Network And Sharing Center to see if there are any problems with your connection.

Description: Make sure your computer is fast enough to handle the tasks you need to perform.

Make sure your computer is fast enough to handle the tasks you need to perform.

 

2.    Next, you can test your connection using an online broadband speed test. The online test will indicate the current speed of your broadband network, and you can run it multiple times to see if the bandwidth changes over the course of the day. Most online speed tests display both your upload and download speeds. If the speeds are lower than what you expect, call your ISP (Internet service provider) about what it can do to fix the problem.

3.   If you have multiple people sharing the Internet connection, it’s possible that there may not be enough bandwidth settings to go around. For example, let's say that your office utilizes cloud computing for your CRM (customer relationship management), file backup, and email. If every worker is utilizing these Web-based services at the same time, in addition to typical work-based Web browsing, the amount of bandwidth provided by the ISP could be too little for what you need. Other commonly used bandwidth-hungry applications include VoIP (Voice over Internet Protocol) telephony and videoconferencing software. If you feel that your bandwidth is too slow for your business needs, talk with your ISP about the available options and which ones best suit your business uses.

4.   Viruses and spyware are another common cause of Internet slowdowns. Viruses often try to spread by sending copies of themselves through email, which can take up both your bandwidth and computing power of your PC. With spyware, the malicious programs can monitor your Web browsing habits (and sometimes your key strokes) and report what it finds to the cybercriminal. To prevent viruses and spyware for monopolizing your Internet connection, make sure the computers on your network are actively running up-to-date Internet security suites.

5.   If bandwidth and viruses aren't an issue, the connection may seem slow due to your PC's hardware. For instance, does the Web only appear slow on an aging computer, while the newer office PCs have no problem loading websites? Generally, hardware requirements for Web applications are fairly modest, such as a 1GHz processor and 256MB of memory, so if your computer doesn't meet those specifications, then it's likely the computer is old enough that it's time for an upgrade. You can see the speed of your processor and amount of memory in Win7 by clicking the Start button, right-clicking Computer, and selecting Properties.

Final Thoughts

Although this is not an exhaustive set of troubleshooting tips, following our steps will take care of the most likely causes of network drops and slowdowns. If the problems continue, we suggest that you contact your ISP for help.

 

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