Archive for February, 2010

Information About Uninterruptible Power Supplies

February 24th, 2010 | Comments Off
Posted by Joan under General PC Advice, Hardware, Services Offered

The sudden loss of power to the working of your electrical devices can be caused by many things besides the natural calamities that can happen. In such situations you need a solution that will help you safely save important data or other activities that you might be conducting when the power got cut off without warning.

An uninterrupted power supply is the superlative solution to this problem as they help safeguard your equipments from all kinds of electrical disorders like brownouts and various other hindrances. Installing a UPS however, will not guarantee the safety of your equipment. Extra security measures need to be carried out to ensure absolute safety of your applications. The list below shows you ten protection solutions in order to maintain the safety of your devices.

Lightning can badly affect your hardware, as it is capable of transmitting through telecommunication cables and causing short circuits as it passes through. You need to separate your computer network from the telecommunication’s data line you in order to avoid this situation; you can do this by installing a UPS data protection circuit. This will prevent the power surge from destructing other devices and saving you the cost of replacing the entire burnt out plugs and switches. The destruction of the data protection device will only need replacing when an electrical surge takes place.

Always install the software that that comes along with a riello UPS to ensure that all IT equipments are correctly powered if the outage happens. Communication cables need to be in place; this will allow the PC and UPS to be able to connect with each other.

Apart from installing the software that comes with the UPS, it is advisable to change the factory default configurations and set it according to the requirements of your company. Shutting down your applications safely will be dependant on the amount of time your UPS is able to provide backup support for; check that configurations are set appropriately.

Batteries cannot last you a lifetime and need to be changed at intervals. Regularly checking the status of your battery with a battery backup tester must be installed; this will ensure your backup battery is functioning correctly. Conducting tests on a regular basis should be ascertained; to ensure they are carried out mark the dates on a calendar. This will help you know whether the battery is strong enough to power your equipments.

Ensure that your present UPS is capable of supporting load when demands increase in the future. You must calculate your total requirement and compare it with what your UPS can provide because if you overload it, the UPS battery is sure to die out.

You must remember not to plug in a laser printer to the UPS because a laser printer takes in a lot of energy which most of the UPS brands are unable to supply. Overload on the battery can cause weakening to its strengh.

It may be required to fulfil data replication and other network activity that need network connectivity while shutting down systems in case of outages. Backup energy from a UPS must be provided in order to avoid a system failure.

When the system begins to run on the battery mode then you need to command Windows Backup to discard back up functions. Make the necessary changes if required to avoid unfinished or distorted backup of a previous backup file.

Batteries need to be replaced accordingly as they can only last a few years. Hot swappable batteries are provided by some of the UPS brands. These are useful as they can be without having to shut down the system. Also unplug systems that re changed and not used often so that the load on the UPS is reduced during power surges and outages.

An unineruptible power supply should only be used to provide you enough time to close and save everything before shutting down the system. Corrupted files, data loss and othter technical failures may occur if it is used to continue working until it can hold.

You should be able to increase the longevity of your UPS, thereby receiving uninterrupted power supply to successfully shut down your programmes before they are lost by bearing these points in mind.

Domain Registry Of America – Don’t Fall For Their Scam

February 20th, 2010 | 2 Comments »
Posted by Tim under My Thoughts, PC Networking, Scams, Tech Talk

Have you received one of these letters?

Domain Name Scam

Click on the image to view larger size.

Don’t fall for it, it’s a scam. You don’t need their services and they aren’t the company who controls your domain. What they are trying to do is get you to switch your domain from your current registrar to them and these guys probably charge a lot more than your current company does. Just throw the letter away as your current registrar will most likely auto-renew your domain when it expires.

And if you have any questions about who your registrar actually is, you can go to http://www.networksolutions.com/whois/index.jsp, type your domain name into the box and click on “Search”. Look for the section that says “Current Registrar” and you will know who your real registrar is you you can be certain that it isn’t “Domain Registry Of America.”

Tim

If you found this post to be informative, consider following Biden PC on Twitter.
Biden PC is a Computer Networking Company and we now offer Online Computer Support.

Linksys WRTU54G-TM Router and SBS 2008 Don’t Play Well Together

February 10th, 2010 | Comments Off
Posted by Tim under How To, PC Networking, SBS 2008, Tech Talk, Windows Server Tips

As you may know, SBS 2008 always wants to be the DHCP server in a domain. Not a problem, right? Well, if you have the Linksys WRTU54G-TM router from T-Mobile, it is a problem.

The issue is that even though you can go into the network setup on the router and disable DHCP, it never stops the service. This means that you now have two DHCP servers on one network giving conflicting addresses.

The Linksys WRTU54G-TM router from T-Mobile is absolutely necessary if you have “T-Mobile @Home“ phone service. This service allows you to connect a standard land-line phone to the router and have a pseudo-landline through T-Mobile. You have to put a SIM card in the router and as other routers don’t accept SIM cards, this is the only one that you can use with this service.

So my client needed this router AND he needed his new SBS server. Though it is possible to have the SBS stop serving DHCP, it isn’t recommended. Here is how I solved the problem of keeping the router for my client’s phone service while installing a new router for the network gateway.

  1. I got him a new router to set up as the default gateway for the network and set the IP Subnet to 192.168.0.x.
  2. I connected the server and all office computers to this router.
  3. I then connected the old router, WRTU54G-TM, behind the new one and set it up with a different IP Subnet of 192.168.1.x.

This allowed both routers to be active while the primary network and its computers received their DHCP through the server. The phone service still worked and at the end of the day, everyone was happy. And next time I see a sys WRTU54G-TM, I’ll know exactly how to handle it. If I can’t remove it, I’ll simply make it subservient to another router.

Tim

If you found this post to be informative, consider following Biden PC on Twitter.
Biden PC is a Computer Networking Company and we now offer Online Computer Support.

SBS 2008 and Vista Can Lose Network on Reboot

February 4th, 2010 | Comments Off
Posted by Tim under Computer Repair, How To, PC Networking, SBS 2008, Tech Talk, Windows Vista Irritations

Have you had either your Windows Vista computer or your SBS (Small Business Server) 2008 box lose their internet connection after you reboot? This recently happened to me after I installed SBS 2008 at a client’s location. It is easy to diagnose and the fix is relatively simple if you understand how to edit the registry on your computer.

Step 1: The Diagnosis:

  1. Click on the “START” button and in the small box at the bottom, type “CMD” without the quotes.
  2. A black box will appear with a blinking cursor. Type “ipconfig /all” and hit “Enter”.
  3. You will see a lot of text that may look completely foreign to you.
  4. Look the the row that says “Default Gateway”, if it is blank, then continue on to the “The Fix” section. If the “Default Gateway” is not blank, there is another problem and the fix below will not help you.

Step 2: The Fix:

  1. Close out of the black box by typing “Exit” and hitting “Enter”.
  2. Click on the “START” button and in the small box at the bottom, type “regedt32″ without the quotes.
  3. The registry Editor will appear and you need to navigate to HKLM/System/CurrentControlSet/Services/Tcpip/Parameters/Interfaces/
  4. Here you’ll need to select the CLSID of your networkadapter where you change the settings. You’ll probably recognize it by looking at the value IPAddress that will have the IP of this adapter.
  5. Open the value “DefaultGateway” by double-clicking it.
  6. You will see a list of all the gateways that disappeared! ( in your case it may only be one) Very likely, the first line will be empty. I’m not sure, how this little flaw can make such a big problem.
  7. Manually remove this first empty line, click OK and reboot your system everything should be working fine again.

Thanks to Ilja Herlein at http://www.netsetman.com/support/viewtopic.php?pid=832#p832 for the direction on how to fix this issue. I hope it helps you as much as it helped me!

Tim

If you found this post to be informative, consider following Biden PC on Twitter.

Biden PC is a Computer Networking Company and we now offer Online Computer Support.