Why does a Cat5 ethernet cable work and Cat6 doesn't?

I recently moved into a new office within our building here at work and needed to use a longer ethernet cable than the previous employee since we have different desk configuations and so I purchased a new 30-foot Cat6 ethernet cable and plugged it into my iMac but I can't get onto the Web. BUT, when I use the shorter ethernet cable, which is Cat5, left by the previous employee, I get on the Web without a problem. I can't use the Cat5 cable because it's a tripping hazard (and we can't move the desk around without a LOT of effort).
I've also tried another brand new Cat6 ethernet cable and it doesn't work either!
When I have either of the Cat6 cables attached, if I look at [Network] under [System Preferences], the ethernet connection appears to be fine. It's green and it says ethernet is currently active.
I've re-started my Mac after re-connecting the Cat6 cables and that hasn't made a difference. I've checked the connections, etc., and everything appears to be fine on that front.
Why would a Cat5 cable work and neither of the Cat6 cables work?
(on a late-2006 20-inch iMac running 10.7.5)

Get a Cat5e, you will be lucky to find a new plain Cat5 now.
You should have no problem buying Cat5e.
There is better sheilding in the Cat6 and I think the twists per inch is different but on that I could be wrong. The Cat6 is good up to 250Mhz while Cat5e is 100Mhz, note Mhz not Mb/s.

Similar Messages

  • Will any Cat5 Ethernet cables work equally well for Gigabit ethernet ports?

    I'm almost embarrassed to ask this, but I must. Are some Cat 5 Ethernet cables designed for Gigabit Ethernet? The Airport Extreme Base Station(b/g) uses Gigabit Ethernet for its LAN and WAN ports. I think my Comcast modem's single Ethernet port does, also. Currently, I use a Cat 5 100Mbs cable to connect the modem to the AEBS. So, I'm wondering if I can get faster throughput with a Cat 5 1000Mbs cable (if such a thing exists).

    In addition to Bob's comments, it's important to understand that Gigabit Ethernet requires using all four pairs of wires inside the cable ... regardless of whether that cable is CAT-5, CAT-5e, or CAT-6 certified. The real difference of the categories is how high of a frequency can they support. For example CAT-6 is rated for 10 Gigabit traffic. It's not that CAT-5 won't work, but it's not guaranteed to do so.
    If you have any Ethernet runs in home that is supplying connections for both data & phone lines on the same cable, you will NOT achieve Gigabit speeds on those cables as the installer used at least one of the necessary pairs for the phone line.

  • Why won't my Ethernet cable work on my Windows Partition on my iMac?

    I have just purchased an iMac and have set up a Windows 7 partiton. However my ethernet connection that works just fine when I use the Mac OS does not work at all on my windows partition.
    It will not let me update my driver since the driver apparently cannot be found, and I obviously cannot find it on the internet since I have no connection!
    Has anyone had the same problem or know how to get around this?

    How is MS Windows installed? Are you using Boot Camp, Fusion, Parallels etc... and if so why not post on those forums. If the issue is Windows related then the issue isn't an iMac issue, it's a Windows problem probably to do with some setting.

  • Why does the select tool stop working and images save with areas missing?

    I have been working on an image using simple tools (only select, crop and scale) and no more than 4 layers.
    The quick selection tool, magic wand tool and polygonal lasso tools are not selecting simple areas. They leave square sections unselected, and eventually I can't select anything on my canvas. The paint tool also does not work. I decided to save the image I had made even though it was unfinished, and upon reopening the file (a PSD) there were square transparent areas that were not there when I saved it (see image)
    This is what I've tried:
    I work on the layer selected
    I have reset all the tool settings back to the default ones
    I have reset the program preferences back to default settings
    The Photoshop CC software is up to date
    I have turned the program and my computer on and off again
    Can someone please help?

    Is the damage actual or only display (are the layers complete according to their previews in the Layers Panel)?
    Does turning off »Use Graphics Processor« in the Performance Preferences and restarting Photoshop have any bearing on the issue?
    What have you done for trouble-shooting so far? (Restoring Preferences after making sure all customized presets like Actions, Patterns, Brushes etc. have been saved mis usually a good starting point):
    http://blogs.adobe.com/crawlspace/2012/07/photoshop-basic-troubleshooting-steps-to-fix-mos t-issues.html

  • TS1307 Why does send mail just stop working and how do you fix it?

    Using MacBook Pro bought last Chrismas and its mail client 5.2
    In the last 2 weeks send mail has stopped working for both my wife and myself (we have different logins / accounts / email address providers)
    We have tried different wifi / isp providers
    rebuilding the mail database
    accessing preferences and changing the default ports to specified port 25 and then back again
    taking the mail accounts off-line and then back on again
    deleting the accounts and then creating just one simple one (GMail)
    no change - send mail still does not go.
    What should we do now?
    What have we done wrong to cause this to fail in the first place?
    It was working fine, but now it is not.
    It is quite worryingand a fix would be greatly appreciated
    Thanks in advance
    Steve

    Hmmm, here's the opposite problem/fix...
    Gmail send but not receive...
    Here are two steps that have come in handy in related situations
    1) login to gmail on your computer or device via a web browser
    2) once logged in successfully, go to this URL to unlock:
    https://www.google.com/accounts/DisplayUnlockCaptch
    Is your gMail POP or IMAP?
    If IMAP...
    Is the Outgoing server smtp.gmail.com, port 25, SSL on, & Authentication = Password

  • Why does one CSS min-width work and the other does not?

    In order to deal with different browser/screen widths, I put a min-width on both the light-colored box that contains the images and article text on my Web pages and also on the text itself. When I test this in Firefox, IE8 and Chrome, only the container box shrinks. The article text area width does not narrow when I shrink the browser window. Any tips?
    http://www.keithpurtell.com/kthings/bj-cole.htm

    In Edge Animate is being created is a note with debug information:
    [0531/123810: INFO: dhcp_proxy_script_adapter_fetcher_win.cc (267)] Error fetching URL from DHCP PAC 2
    But before creating the next note -debug :
    [ 0531 / 114728 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 114739 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 120215 : ERROR : ipc_channel_win.cc (401 )]
    pipe error: 232
    [ 0531 / 120441 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 120452 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 120555 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 121234 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 121251 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 121702 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 121713 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 121827 : INFO : dhcp_proxy_script_adapter_fetcher_win.cc ( 267 )]
    Error fetching URL from DHCP PAC 2
    [ 0531 / 122023 : ERROR : ipc_channel_win.cc (401 )] pipe error: 232
    But I do not know what it means or what to do.
    Thank you for your help

  • Why does my php export feature work in IE and not firefox?

    Why does my php export feature work in IE and not Firefox? I've written a web application which contains a SigmaGrid. The grid controls reload, add update delete, print and export to csv all work in IE8. The export feature does not work in Firefox.

    I'm not sure what's going on for you. I've had 4 other developers - two on Comcast and two on Fios review my work and they get the control and export action in the IE8 version but not the FF10 version.
    Thanks for looking into this for me, though. I appreciate the effort. '' The operation was a success doctor, but the patient died.''

  • Why does the store app keeps loading and doesn't work ?

    why does the store app keeps loading and doesn't work ?

    Hi Peter,
    In order to analyze your issue better, we need more detailed information.
    Did you mean when you launch the Windows store app, the app can't start? Was there any prompt message or error code? Did this issue occur on all Windows Store app or specific one?
    Try the method in this blog:
    Fix Store App in Windows 8.1
    http://blogs.msdn.com/b/notime/archive/2013/10/18/fix-store-app-in-windows-8-1.aspx
    Karen Hu
    TechNet Community Support

  • Why does the "fix" for firefox copying and pasting not work?

    I did the fix a few times and restarted firefox, with no success. Also, I installed the latest version of firefox and it is slower now. I have to use firefox for school, otherwise I would just find another way.

    In what way is Firefox slow?
    Is this all the time or only with loading web pages?
    What kind of fix do you mean with: ''Why does the "fix" for firefox copying and pasting not work'' ?

  • Why does my card reader not work on my iPad since upgrade?

    I use my iPad mini to download photos from my camera when I'm on the road. In the summer I bought the "3 in 1 Card Reader Adapter Cable Camera Connection Kit, 3 Port Card Reader for iPad 4 and iPad Mini by Eurekka" and it worked wonderfully. I was able to download photos (jpg and RAW) directly to the iPad and off the camera, and once home it was a flawless upload to my iMac.
    However, once I upgraded to iOS 7 last week I get a message saying the device is not supported. What gives? Will this be fixed or will Apple products only accept Apple accessories from now on?

    No but I was just trying to find a way in to your help desk. I didn't find 
    your web page very helpful in this regard.
    Douglas Whiteley
    In a message dated 10/05/2012 20:43:50 GMT Daylight Time, [email protected] 
    writes:
    Re:  why does my adobe reader not work
    created by Claudio  González
    (http://forums.adobe.com/people/Claudio+González)  in Adobe Reader - View the full  discussion
    (http://forums.adobe.com/message/4395059#4395059)

  • Why does my free trial not work?

    Why does my free trial not work?  This is intentially misleading.

    You need to provide a better description of what isn't working, system info and all that. This could be all sorts of technical issues or your trial could simply have bombed itself. In the latter case there is nothing you can do:
    Adobe trial software expired early
    Anything else like iunstall issues can in most cases be sorted out...
    Mylenium

  • Why does illustartor CC open then crashes and i get a message saying windows don't know the prob?

    why does illustartor CC open then crashes and i get a message saying windows does not know what the problem is. everytime i open it, Now i know it works on my computer becuase i've used illustartor plenty of times on my current desktop but ever since today its been acting wierd and work so i've unistalling and reinstalling but still nothing works then i tried installing on another hardrive still did not work and i cleaned out my registryies, optimized my disk, and cleaned temp files tooo so i just do not know what went wrong and i really need help i have class assignments that i have to get done in illustartor so if anyone can help me and let me know what the problem is and what i have to do i would really apreciate it.

    Hi J,
    - Do you see an AICC splash screen? If yes then could you please let us know where exactly it crashes i.e. while loading which plugin or font?
    - Do you have any 3rd party plugins installed? Can you please remove those (do take a backup of them) and see if AI launches fine? This way you would be able to find the plugin creating the problem.
    - Did you install any OS or Ai update after which it started showing the problem?
    - Please check if you have all the Verdana family fonts installed.
    Let me know if any of these work.
    Thanks,
    Dhirendra

  • Why can't my hdmi cable work with my computer

    why can't my hdmi cable work with my computer and we i put the cable in my computer. My computer just goes black for one second and then it goes but to my computer display.

    Hi there davidhe2000,
    You may find the troubleshooting steps in the article below helpful.
    Apple computers: Troubleshooting issues with video on internal or external displays
    http://support.apple.com/kb/ht1573
    -Griff W. 

  • Why does the sync button not work in itunes when my ipod touch is connected

    why does the sync button not work in itunes when my ipod touch is connected?

    It's working for me in Acrobat XI:
    I'd try logging into Acrobat.com from your browser, and log in with your Adobe ID. There may be a problem there:
    workspaces.acrobat.com

  • Why does the plug in stop working sometimes

    Why does the plug in stop working sometimes?

    Is your pc. laptop, whatever Windows -ana what version, like Windows Vista, or Windows 10.
    What bit is it? 32 or 64?
    You can get that info by right clicking on "My Computer" Uusually on the desktop) and selecting Properties in the drop down menu.
    And what version of Fire Fox are you using?
    And which plugin are you using, and is it for Flash Player?
    This info will help someone to answer your question.

Maybe you are looking for

  • Time Capsule Hard Drive not showing up in Windows machine

    I have Time Capsule showing up perfectly on my two Macooks, but my windows laptop from work cannot see the Time Capsule hard drive at all. I have successfully logged onto Time Capsule as a wireless network and am able to use the Internet fine, but I

  • How do I change the resolution of my photos on my iBookG4?

    I have iPhoto 6 and post things regularly on craigslist. With my older camera I never had any problems uploading photos to the web. Now, with my new 6 megapixel camera, CL won't always take the photos all at once. Is there a way to downsize the pixel

  • Change History Table in CRM

    Hello All, Please let me know the transaction change history table in CRM. Kindly help. Regards DJ

  • How can I build an animated drag and drop multimeter lead using Flash?

    I am building a virtual multimeter for testing simulated circuits. I would like to be able to drag an animated multimeter test lead to a point in the circuit and drop it on a target. The static drag and drop is not my issue. I would like some suggest

  • Problem with processing edited inbound idoc

    hi i am editing an inbound idoc as a result it goes to status 69. Then to process this IDoc through program 'RBDAPP01', i am changing the status of the idoc to 64 through IDOC_STATUS_WRITE_TO_DATABASE'. But after that when i am calling transaction fo