Home > How To > How To Test A Cable Modem

How To Test A Cable Modem

Contents

On Monday, tech comes out, says signal is weak, thinks cable is damaged where neighbor behind us put in fence last year. If you do not see this, then the attempt to communicate with the modem has failed. Why does the download test work, but the upload does not (or vice versa)? Connections which rely on wireless signal strength may have varying results that do not represent the full potential of your service. navigate here

Why are my wireless connection speeds slower than my wired connection speeds? If you see a lot of timeout-related errors where the log indicated that the modem has lost connection (often called T3 and T4 errors), that's a problem. Published 01/29/16 DID YOU KNOW?The English borough of Redditch began producing needles in the Middle Ages and at peak production was manufacturing 90 percent of the needles in the world. Click the Start Button and then click the "Programs" folder.

How To Test A Cable Modem

On Tuesday, repair crew comes out and does something out by fence, but still no internet. Click Here to Join the Discussion Tweet Jason Fitzpatrick is a warranty-voiding DIYer who spends his days cracking opening cases and wrestling with code so you don't have to. Related: Networking Network Storage Gadgets Router Hardware You Might Like Shop Tech Products at Amazon PCWorld First you must locate which port your modem is currently using.

  • This will give you a list of modems that you have installed on your computer: Click on the 'Diagnostics' tab at the top of the window: We can see above that
  • What Diagnostic Page?
  • JavaScript is also used heavily throughout the site (even to display the Flash), so make sure you don't have it disabled!
  • We advise using the latest version of your preferred web browser to ensure optimal performance.
  • Why doesn't the closest server provide the best speed results?
  • FOLLOW US Twitter Facebook Google+ RSS Feed Disclaimer: Most of the pages on the internet include affiliate links, including some on this site.
  • An RJ45 CAT5E cable should have been provided during your installation.
  • Waited to Friday morning to see what would happen over night, and after still nothing scheduled service call for following Monday.
  • The results from Xfinity Speed Test represent an estimate of the maximum connection speeds for downloading and uploading a file size between 256KB and 100MB.

Make sure you are connected to the internet directly via your cable modem Make sure you are not downloading or uploading anything Close any other programs that are using the internet We were fine until the following Thursday (Thursday thing is weird too) then the exact same scenario. You will be prompted to save this session. Modem Diagnostics Tool Why does the download test work, but the upload does not (or vice versa)?

You will be prompted to save this session. Your computer should start dialling (with some computers you will not hear it dialling). This is because the TCP window is not optimized for the increased latency that comes from an increase in distance. What are the minimum system requirements for my speed tier?

Also, per your comment about my powering the modem off every night, why would you recommend against doing that? –TheOtherTimDuncan Jul 3 '11 at 19:40 The cable company sends How To Check If Modem Is Faulty Based on this result, an appropriately sized set of randomly generated data is selected for upload. If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). See if you can get it returned.

Cable Modem Signal Strength

Does having multiple equipment pulling from the service line increase the electric load on the line? check these guys out With that in mind, let's take a look at how you can access the diagnostic page and what to do with the information you find therein. How To Test A Cable Modem When prompted for 'login:' type in your Tesco internet access username and press the 'enter' key on your keyboard: You should now be asked for 'password: Type your password and press How To Check Modem Signal Levels ThemeWelcome · log in · join Show navigation Hide navigation HomeReviewsHowChartsLatestSpeed TestRun TestRun PingHistoryPreferencesResultsRun StreamsServersCountryToolsIntroFAQLine QualitySmoke PingTweak TestLine MonitorMonitor GroupsMy IP isWhoisCalculatorTool PointsNewsNews tip?ForumsAll ForumsHot TopicsGalleryInfoHardwareAll FAQsSite FAQDSL FAQCable TechAboutcontactabout uscommunityISP

The "Downstream Power" reading should be between -15 dBmV to +15 dBmV and, ideally, should be closer to +8dBmV and -8dBmV. check over here How to install a computer modem. If you, for example, have your cable modem plugged into a coax jack in your home office and you're having connection problems, you could unplug the modem and plug it directly If you have several modems listed you may have more than one modem installed. Cable Modem Diagnostics

Understanding and distinguishing slurs and phrases On what basis might Trump's executive order on immigration be illegal? The three stages of the test are Ping, Download, and Upload. maybe you should *not use it to restart the modem ...

January 30, 2016 True Falcon Your modem is a DSL modem, *not a cable modem. http://everfreetech.com/how-to/how-to-connect-fax-machine-to-cable-modem.html Powered by broadband speed tester Skip to Main Content Search Help Tips Dictionary History Forums Contact You are here: Help > Hardware Help > Modem Help How do I find what

Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Arris Modem Logs If it's powered off it may take several minutes to get things sorted out when it's first turned on, and the opportunities for a misconfiguration are increased. –Daniel R Hicks Jul Obtain the best test results by trying several different servers.

So ...

And even if they were, the settings are so arcane and ISP specific that they are of very little diagnostic use to most users. You can also close the 'Control Panel' window. Why is this? Arris Modem Diagnostics Xfinity Speed Test gives the most accurate results when you are connected to the internet via a direct cable from your computer to your cable modem.

Think of this familiar scene: something weird is going on with your internet access, so you dutifully unplug your modem and router, start them back up, and things work well again…for a Not the answer you're looking for? In our screenshot here, the upstream signal squeaks by with a 39 reading (and we're receiving the full speed we pay for without connectivity issues), but we'll definitely be keeping an http://everfreetech.com/how-to/how-to-connect-laptop-to-modem-with-ethernet-cable.html If you see power resets that weren't caused by you physically resetting the device, that's a problem.

You can follow him on Twitter if you'd like. WiFi performance can vary due to many factors such as: Laptop manufacturer/model Operating system (Windows/Mac) Distance from the wireless gateway Antenna design Whether it is an 802.11n client or an 802.11 The only difference between these tests is which network protocol is used: IPv4 or IPv6. Because you did as the cable company suggested, you have leverage to get them to come back out and revisit the power level issue.

Is it safe to use a HDD when rsync is working? Simply click on the 'OK' button, without changing any of the settings: You will now see the full Hyper Terminal window as below: Type ATZ and enter. If a bad connection, splitters on the coaxial lines, or even old television amplifiers are dropping the signal below or pushing the signal above the operating range, then you may experience You will need to begin from your computer's desktop, the first screen you usually see when your computer has fully started.

The latest version of the Xfinity Speed Test allows Xfinity customers to test against two distinct network protocols: IPv4 and IPv6. It's been working great since I got it. Many modems, the Surfboard series included, will allow you to click directly on a failed/negative entry to access a help file about what that failure means. This counteracts the ability to reach higher speeds, as there is more wait time from the packets being sent and received from the 3rd party speed test server.

If you are unable to locate a manufacturer or model number of the modem, but can locate an FCC identification number, it is recommended that you perform an FCC search using Mea culpa! To comment on this article and other PCWorld content, visit our Facebook page or our Twitter feed. share|improve this answer edited Jul 2 '11 at 11:46 tombull89 5,74763456 answered Jul 2 '11 at 11:38 Pavan Kumar C 1015 I have a Scientific American cable modem from

How does Xfinity Speed Test work? If it happens again, push that first to check if it is just sleeping.