Connecting to the Wrong Wireless Network

By terry Leave a Comment

When you have a wireless notebook, or even a wireless desktop computer, you need to make sure you’re connecting to the correct router.

Most often, you want to connect to your own router in your house or apartment. Other times, it might be the wireless router in a coffee shop.

Our first type of accidental connection is an automatic connection to an unsecured network. Sometimes, you might want to do that because you’re at the coffee shop and want to use the wireless service they provide.

But, suppose you’re at home and turned on your notebook computer — configured just as it was when you went to the coffee shop?

You’ll probably connect to one of the unsecured routers in your neighborhood. And, you’ll wonder why your connection is so slow, why you can’t print, why you can’t …

Continue reading Accidental Wireless Connections

Filed Under: Networking, System Control, Terry's Computer Tips, Troubleshooting, Wireless Tagged With: , , , , , , , , , , , , , , ,

Router Encryption — Increasing Wireless Security

By terry Leave a Comment

I answered a question recently from someone who was using WEP (the so-called “Wired Equivalent Privacy”) encryption on their wireless network. They were considering changing to WPA (Wi-Fi Protected Access). The real answer is that they need to change to the second generation of WPA — WPA2.

The biggest question in their mind was whether they’d have to change the wireless passphrases on all their computers (quick answer: yes).

Why change? WEP is old, way, way old in computer terms. When it was first released, it was effective.

But, by 2004, second-generation WEP-cracking tools were widely available. In an article, SmallNetBuilder reports on a 2005 demonstration by a team of FBI agents who were able to crack a 128 bit WEP key in about three minutes.

Continue reading Router Encryption — Increasing Wireless Security

Filed Under: Broadband, Networking, Notebook computer, Security, Terry's Computer Tips, Troubleshooting, Wireless, Wireless Security

Wireless Security Issues

By terry Leave a Comment

In IP Addresses and Security, I wrote about how the Internet works — your computer has an IP address, your intended destination has an IP address, and both have to know and use the IP address of the other in order for communication to occur between them.

The article was in response to a reader who wrote to ask if he could keep his IP address secret, since he had been accused of copyright infringment by downloading a movie (which he says he didn’t do).

One of the potential issues was that his IP address could have been involved, even without him or anyone in his family being involved.

He uses a wireless router, as many of us do. He mentioned that he had a wireless password that had to be used in order to access his router. This kind of password is not a log-in password to the router — it is a password to the router’s encryption. Over the years, though, password security has gotten better and better. Unfortunately, some of the older encryption methods have become almost trivial for someone to crack with today’s fast computers.

However, even using the best wireless encryption available isn’t enough. There are other steps necessary to secure a wireless network.

Continue reading Wireless Security Issues

Filed Under: Internet Access, Internet Privacy, Intrusion Detection, Networking, Security, Wireless, Wireless Security

Blocking Call-Home Attempts by Microsoft Software

By terry Leave a Comment

A reader wrote to ask for more details about how I configure my firewall to block Microsoft.com’s call–home attempts:

In your Email Newsletter — Volume 3, Number 12 — September 3, 2007, article “Windows Genuine Advantage SNAFU” you say, “When they want to check in with Microsoft, they run into my copy of Sunbelt Personal Firewall,” and “Sunbelt Personal Firewall has shown me that Microsoft’s products often want to connect to Microsoft.com, whether it makes sense or not.” You do not give enough details on the matter so one could take action…or not. QUESTION: 1. Is there a problem if they are prevented from calling home? 2. If not, how can I set up my Sunbelt PFW to do that, as you infer you have done. P.S. I used your links to purchase said product a while back along with Counter Spy and iHateSpam. Thanks in advance for your help.

The good news was that Ed was asking about Sunbelt Personal Firewall, since it will actually apply its controls to Microsoft’s programs. The process with SPF is easy, too.

Continue reading Blocking Call-Home Attempts by Microsoft Software

Filed Under: Broadband, Cable, Dialup, Firewalls, HowTo, Networking, System Control, Terry's Computer Tips

Internet Speed Tests

By terry Leave a Comment

I received an email recently from PC Pitstop (I bought a license for PC Pitstop’s Optimize 2.0) announcing their new version Internet speed test.

That got me thinking about the variations in connection speed that I’ve seen over the years — over days and even between sites.

Typically, the closer the bandwidth-measuring site is to you, the higher the results you will get for download speed and upload speed.

But, sometimes, the closest site isn’t the fastest. It all depends on the congestion on the net…

Continue reading Internet Speed Tests

Filed Under: HowTo, Networking, Speed-up, Terry's Computer Tips, Web Browsers, Web Sites, Windows XP

A Look Inside PCPitstop Optimize 2.0

By terry Leave a Comment

Like many of the other downloadable programs that are designed to scan and fix computer problems, Optimize 2.0 from PC Pitstop is a program that can be run on schedule to routinely check for and fix problems, or can be run on request to fix and find problems.

Of course, the most significant value will be in the optimizations and repairs it makes on its very first running — optimizing your Internet access settings, checking startup programs, cleaning and repairing the Windows registry, and cleanup of junk files.

While some types of programs like antispyware and antivirus let you have fully-functional trial versions, programs that make repairs to your computer can’t afford to give free trials. Whether you are considering Spinrite 6 from Gibson Research (a hard drive recovery utility) or a Windows registry cleaner program, if there was a free fully-functional trial — no one would ever buy a copy — they’d just download a trial if they had a problem!

The solution for many of these products is to provide a scanner program that will scan your computer, tell you that it found a bunch of things to change, but will only make the repairs if you buy a license.

Does that sound unreasonable? If so, compare it to buying software in a retail box — most retailers will not accept returns of opened software, so you have no way to see it work. I wish I’d been able to see some of the games I’ve bought before spending my money.

Optimize 2.0 goes the extra mile — in the unregistered scanner mode, Optimize 2.0 shows you the changes it would make! It does not just show you the categories of changes that it would make, if you buy a license. This way, if you know what you’re doing and want to take the time, you can make the changes manually.

In the first screen shot below, we see the display after Optimize has done its first scan of my notebook computer (my main computer). The blue “Next” button at the bottom right is the next step…

Continue reading A Look Inside PCPitstop Optimize 2.0

Download the Optimize 2.0 Scanner

Filed Under: Networking, Optimize, PC Repairs, Software, System Control, Terry's Computer Tips, Troubleshooting, Vista, Windows Repair, Windows XP

New Articles at Terry’s Computer Tips

By terry Leave a Comment

I write my weekly online and email newsletters. Then, occasionally I get around to converting some of the newsletter articles into web pages.

Google and the other search engines like web pages more than they like online newsletters — the newsletters get indexed fairly quickly, but then get dropped as "old" pretty quickly, too.

Here are the latest editions. I’ll add them to the listing on the front page in a few days…

*   Creating a Blog For Family and Friends

Blogs are one of the easiest ways to create a web site. You can do it for free, too…

*   Internet Explorer + Outlook Express Problem

Links in Outlook Express don’t work after upgrading to IE7 for some people. The fix is easy…

*   Computer Shuts Down By Itself

I’m sure you’ve never had this problem <grin> — if you haven’t, you will…

*   Turning Off System Restore

Sometimes we need to turn off System Restore — and not because we want to save disk space…

*   I’ve Reconsidered the Linksys WRT54G Wireless Router

After Linksys changed the internals on the WRT54G as of version 5, it was a totally different router. After some more changes, it’s better now…

Filed Under: Anti-Adware, Anti-Spyware, Anti-virus, Hardware, Internet Explorer, Networking, Outlook Express, System Control, Terry's Computer Tips, Web Browsers

Wireless Networking

By terry Leave a Comment

Why have a Wireless Network?

By using a wireless network, you can share your Internet connection between computers that are not in the same room, without running wires from one room to another or from one end of the house to another.
Wireless Networking Flavors

* 802.11b – 11 Mbit/second, the original “consumer” wireless. This is the most common variety.
* 802.11a – 11 Mbit/second, but on a different frequency for better penetration of walls.
* 802.11g – 54 Mbit/second, compatible with 802.11b, but one person with a “b” card can slow entire network

Wireless Networking – Distances

The nominal maximum distance for 802.11b (the 11 megabit/second version) is 100’ indoors. In practice, this is a function of where you place the router, how many walls & how much glass the signal has to go through, metal window frames and ductwork between the router and the wireless client and whether you’re using the default antennas or optional hi-power versions. If you want to maximize the distance, you should place the router on a high shelf or in another high position.

However, a directional antenna can change all that — a 21 dB Yagi directional antenna can give a usable distance of 14 kilometers. Also, there are simple fabrication directions on the Internet. In other words, distance from you neighbor isn’t enough.
The Hook-Up

Getting your wireless network set up is often not much more difficult than setting up a wired network. The easiest and best approach is to have Windows XP (either Home or Professional, but I prefer Professional) on the computer(s). Windows XP is much more robust on networking than any earlier version of Windows. XP handles many updates and changes without requiring reboots, also.

Continue reading Wireless Networking


Filed Under: Internet Access, Networking, Terry's Computer Tips, Wireless, Wireless Security

Wi-Fi Hotspots and Computer Security

By terry Leave a Comment

Are you safe when you use the wireless network at your local coffee shop or airport? Maybe. Maybe not.

Are you accidentally sharing your files on your computer? Is your computer “trusting” connection attempts from the other computers at the hostspot?

A reader asked me

To improve security when using Wi-Fi at a coffee shop or traveling, I’ve seen advice to uninstall “File and Printer Sharing for Microsoft Networks” on the active wireless connection in the Properties menu of Control Panel Network Connections. Is it necessary to do this – is there any downside to uninstalling this? Would it be sufficient to uncheck the box, or do I need to fully uninstall it?

Read more in Wi-Fi Hotspots and Computer Security

Filed Under: Broadband, Internet Privacy, Intrusion Detection, Networking, Security, Stability, Windows XP, Wireless, Wireless Security

GoToMyPC – Remote Access to Your PC – Review

By terry Leave a Comment

As I wrote in one of my weekly newsletters, I’de been trying the 30-day free trial of GoToMyPC. I’m very impressed with this service and its capabilities.

GoToMyPC is designed to allow a PC user to access his computer remotely. This user might be a salesman, a tech support person, a business man who left some files at the office (or at home), a traveler for business or pleasure. Access could be from across town or across the country.

Getting Started With GoToMyPC – 30-day free trial

On the remote PC, the PC that you’re actually using, you use a Java-capable web browser (Internet Explorer, Firefox, etc) to access your host computer (your office or home PC). Any web browsers that supports Sun Microsystems’ Java (free, www.java.com) will work, although not all features may be available on some browsers. You can even access and control your Windows PC from a Mac.

Read more in my Review: GoToMyPC – Remote Access to Your PC

Filed Under: Firefox, Free Trials, Internet Explorer, Networking, Opera, Other, Software, Terry's Computer Tips, Usability, Web Browsers
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