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The Network Is Down – No Internet Access

January 2, 2012 By

I sat down at my computer recently to finish writing my newsletter, only to find the hated words “Not connected.”

Windows 7 was informing me that I had no network connection. Not just no Internet access, but not even access to the other computers on my home network. This was a horrible morning.

Everything worked fine last night when I went to bed. It was time to put on my Debugging Hat…

My first step was to reboot my cable modem and my router. The process was easy and seemed to be fine. Unplug the power to the cable modem; unplug the power to the router; plug in the power to the cable modem; wait for the cable modem to download it’s configuration data from the cable Internet service provider and stabilize it’s lights, plug in the power to the router so it can make its connection to the cable modem and to the other computers and the Gigabit Ethernet switch connected to it.

But, it didn’t solve the problem…

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Filed Under: Communications, Networking, System Repair, Terry's Computer Tips, Web browsing, Windows 7 Tagged With: , , , , , , , , , , , , , , ,

Accessing the Internet While Travelling – 2011 Style

May 31, 2011 By

Several years ago, I wrote an article about how to access the Internet while travelling. It focused on using a notebook computer with dialup access, using a hotel business center’s computer (or a friend’s whom you were visiting) to access your emails. Little more than that

So much has changed…

Now, we have smart phones, whether Blackberry, iPhone, Android, that we can use to check emails and can use to surf the web. The small screen isn’t great, but it works!

We’ve also got the ability to use 3G wireless network adapters for laptop computers (assuming we have a laptop computer), Apple iPad’s with 3G service from AT&T or iPad 2′s with our choice of AT&T or Verizon 3G service (assuming we can find one in stock somewhere, or are willing to order one and wait!).

Finally, the best (in my current opinion) approach — tethering our smart mobile phone that has 3G access to our laptop computer.

I used to do that long, long ago with a laptop and a Motorola flip-phone. But, then AT&T got wise and changed their terms of service to prohibit tethering.

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Filed Under: Communications, Networking, Terry's Computer Tips Tagged With: , , , , , , , , , , , , , , , , , , , , , , , ,

Adding Memory to the HP Color LaserJet CP1518ni

August 1, 2010 By

One of the differences between inkjet printers and laser printers has to do with handling of the data to be printed.

An inkjet printer gets its commands for each printed line, one at a time, from Windows. It prints the line and gets the data for the next line. Sometimes they buffer a little of the data so there’s no hesitation, but Windows is talking to the printer thoughout the whole print job.

That’s not the way that laser printers work. A laser printer has to get all the data for a whole page before it starts to print that page.

What happens if there is so much content, shapes or colors, that the printer’s memory can’t receive the entire page? You can’t print it. You have to add memory.

Continue reading Adding Memory to the HP Color LaserJet CP1518ni

Filed Under: Hardware, Networking, Performance Tweaks, Printers, Sales, Speed Tweaks, System, Terry's Computer Tips

Upgrading the Router in Preparation for DOCSIS 3.0 Speeds

July 20, 2010 By

Subscriber Gene Philbrick posted a question via my Terry’s Computer Tips blog, asking:

Subject: Routers Compatible w/Motorola SURFboard eXtreme Modem SB6120, DOCSIS 3.0——

I have two Dell computers (an XP & VISTA) wired in one room. The above new modem is enroute to replace Comcast’s Motorola 11b modem. Expect I may have to also upgrade my router (currently a Linksys BEFSR41 v.2).

I have been reviewing two $80 routers…

Continue reading Upgrading the Router in Preparation for DOCSIS 3.0 Speeds

Filed Under: Hardware, Networking, Shopping Deals, System, Terry's Computer Tips, Wireless

Wireless Problems Solved with New Router

June 7, 2010 By

Readers of my online newsletter will remember Bev’s problems of several weeks ago. Bev upgraded to Windows 7 Home. However, she was no longer able to get to Pogo.com to play games…

I had corresponded with Bev and made sure she had updated to the latest verison of Java (from www.java.com). But, Bev continued to have problems.

My last request to Bev had been that she write to tell me how she ultimately solved the proble.

This week, she wrote back to report that the problem was solved — and in a way that was quite surprising to me:

Hi Terry, Just wanted to update you on my Pogo.com issue that I wrote you about.

I ended up talking to Microsoft and they remotely assisted but after two days they couldn’t resolve the problem, called Linksys who wasn’t any help as router is outdated, called Pogo and they didn’t have any answer and called my ISP.

I finally called my friend who is super busy as computer tech and he did a few things like trying to download update firmware for my router of which wasn’t available any longer and his last fix worked, buy a new router as Windows 7 did not like my old router. So he had me buy a Netgear WNR2000-100NAS.

I did the switch and setup all by myself as their setup disc is so simple and by golly everything is working great besides being fast router for desktop as well. Thank you Terry for all your help, you are a trooper for sure. Happy Thanksgiving early.

The solution was surprising, but perhaps should not have been. Linksys has had a lot of versions upgrading and improving their WRT54G router that Bev used. Her’s was about …

Continue reading Wireless Problems Solved with New Router

Filed Under: Communications, Networking, System Repair, Terry's Computer Tips, Windows 7, Windows Vista, Windows XP, Wireless

Router Seems to Have Failed

August 28, 2009 By

A reader wrote recently that he was havig problems with his router on his DSL connection:

Terry,

I have been using Linksys DSL wireless router (4 data ports and 2 analog phone ports) for over one year. Lately, I can’t access to the internet (via this router). I did run a quick DSL speed tests, the download speed was good ~2340Kbps, but the upstream test had problem to finish the test? As long as I bypassed the router, then I can connect to the internet, but I could not use my Vonage VoIP phone.

Please advise and thank you so much in advance.

I wrote back to suggest how he might solve the problem.

He could try logging into the router’s administrator control panel and writing down his customized settings. Then, he should use…

Continue reading Router Seems to Have Failed

Filed Under: Networking, Performance Tweaks, System, Terry's Computer Tips

IP Addresses and Security

February 26, 2009 By

A reader wrote me to ask about IP address security. I’m not really sure whether he meant keeping his IP address a secret, or whether he was asking if someone could break into his network and use his ISP connection with his IP address, so, let’s first look at the idea of keeping one’s IP address a secret…

Terry,I just recently came across your site and have joined your online email newletter. I have a question relating to I.P.addresses.I have a home network,router(encrypted /password required ),a firewall (not Win xp),several antispyware programs.The other day my ISP sent me an email,alleging I had violated copyright laws and had downloaded a movie from some place in [identifying information removed - Terry].I called my ISP and we discussed it,I did not download any movies and never heard of the film co.in question,my concern was how would they obtain my IP address,as it is like a fingerprint.I asked my ISP is there any way a 3rd.party could gain access to my wireless network and they could not provide an answer as to how this happened and advised me to disregard it.Is there a way for a 3rd.party to obtain my IP address ?? this is a security concern to myself and my wife. Thank you for your time

I wrote back to him to explain thatt the real question is not how they got his IP address, but how they tied that IP address to him. Only his ISP can do that, unless you logged in somewhere (or used an ID that linked to his name or email address) or in the program used to access it.

First, let’s go through how TCP/IP works – how the computers communicate like …

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Filed Under: Communications, Networking, Security, System, Terry's Computer Tips

Home Networking — Wired + Wireless Connections

February 17, 2009 By

The simplest way to set up a home network, including both computers with wired connections and computers with wireless connections, is to set up a wireless router immediately following your DSL modem or Cable modem. Sometimes, a DSL modem even has the router built into it.

In this setup, all the computers are assigned their IP addresses by the DHCP server that is built into the router. All are on the same logical network. However, their ability to share files, printers, and otherwise communicate between each other will depend on your settings in each computer.

In order to share files, you have to tell Windows (or Linux, etc.) to enable file and printer sharing, identify which directories should be shared, and have the computers on the same Windows Workgroup (or Windows domain, if you’re a very advanced user running a Windows domain controller). You’ll also have to tell the firewall programs on each computer to allow the sharing with the other computers — or the firewall will block the data.

Continue reading Home Networking — Wired + Wireless Connections

Filed Under: Networking, Performance Tweaks, Security, Security Issues, Terry's Computer Tips, Vista, Windows Vista, Windows XP

New articles at Terry’s Computer Tips

December 30, 2008 By

There are a bunch of new articles at Terry’s Computer Tips:

Filed Under: Communications, Hard Drive Recovery, Hard Drives, Networking, Software, Terry's Computer Tips, Windows Vista, Windows XP

Malware Silently Alters Router Settings – Change Your Router Passwords

October 31, 2008 By

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Not your password for Windows — you may or may not change that, based on your personal preference (or if at work, based on the requirements of your employer’s network).

I’m talking about changing your passwords on your wireless routers and wired routers.

Whether you use a Linksys router, a DLink router, a Belkin route, or one of the many other brands of routers , whether you use wireless or regular Ethernet connnections with your router, change the password from the default password — now!

In my security articles on routers, I have long recommended that you change the router’s password. Sure, it can’t be accessed from the Internet side of the router, but if you manage to pick up some automated malware or a trojan that gives remote control of your computer to someone else, you may find your router subverted. It may run all of your requests through their system, so they can log and analyze your actions, passwords, etc.

Well, the automated malware that I’ve long predicted has now been found in the wild.

Continue reading Malware Silently Alters Router Settings – Change Your Router Passwords

Filed Under: Anti-spam, Anti-spyware, Anti-Trojan, Anti-virus, Networking, Patches, Security Fixes, Security Issues, Terry's Computer Tips, Vista, Windows XP
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