Results 1 to 10 of 10
  1. #1


    Member Since
    May 07, 2010
    Location
    UK
    Posts
    476
    Specs:
    2 21.5" iMacs 3.06 GHz Intel Core i3 500 Gb HD OS X 10.11.5; 2 iPads iOS 9.3;2 iPhone 4s iOS 9.3
    Password protecting Wifi
    I'm using an old Linksys wireless router that only has WEP security but the manual says:
    NOTE: The WEP Passphrase is compatible with Linksys wireless products only. If you are use non- Linksys products, manually enter the appropriate WEP key on those devices.

    I've tried to set up a password in the router but, presumably as explained in the above note, it's not recognised from the iMac.

    If I have a logon password for my iMac will that prevent anybody trying to use my wifi to access my iMac?

    If not what does it mean 'manually enter the WEP key'? Is this one of the 4 long numbers, each marked Keys 1-4 generated when the password is set up?

  2. #2

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,876
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    The simple answer to your question is - it's time to buy a new router.

    WEP is so hopelessly outdated and insecure that even with 128-bit encryption, it's easily cracked within 60 seconds and can be done with readily available tools that can be executed by the average 13-year-old.

    WPA long ago superseded WEP and even the lowliest $50 wireless routers support WPA and will outperform routers of that vintage in just about every measurable way.

    Advising you otherwise would be doing you a disservice, not only in wasting your time, but also creating a false sense of security.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  3. #3

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
    Posts
    6,854
    Specs:
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Air 2, New AppleTV (4?)
    Just so I know where you're up to:

    1. you've connected to the router with an ethernet cable to your Mac.
    2. you've logged into the router, entered your own wifi password
    3. you've disconnected the ethernet cable
    4. You've detected the wireless network on your Mac and tried to connect enter the password you selected earlier
    5. Do you get an error? 'cannot join network' or similar
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  4. #4

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
    Posts
    6,854
    Specs:
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Air 2, New AppleTV (4?)
    As cwa107 suggests, a new router would seem to be the best option. Not only is WEP woefully outdated and inherently weak but many modern devices simply struggle to connect to wireless networks 'secured' by WEP
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  5. #5

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,876
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    Quote Originally Posted by mrplow View Post
    Just so I know where you're up to:

    1. you've connected to the router with an ethernet cable to your Mac.
    2. you've logged into the router, entered your own wifi password
    3. you've disconnected the ethernet cable
    4. You've detected the wireless network on your Mac and tried to connect enter the password you selected earlier
    5. Do you get an error? 'cannot join network' or similar
    With routers of this vintage, it was not uncommon for them to use a proprietary algorithm for developing a "passphrase" instead of having to enter a 26-character encryption key at the client.

    Assuming the router and the wireless adapter for the client were of the same brand, they would use the same proprietary algorithm and in-turn, the user could relatively easily connect to the wireless network using a passphrase instead of a huge key that was easy to typo on.

    What the OP needs to do is instead use the 26-digit key as the passphrase won't be valid on the Mac, which isn't using that same algorithm. But rather than waste their time doing that, they really should just buy a router that has effective security (and is a heck of a lot easier to use).
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  6. #6


    Member Since
    May 07, 2010
    Location
    UK
    Posts
    476
    Specs:
    2 21.5" iMacs 3.06 GHz Intel Core i3 500 Gb HD OS X 10.11.5; 2 iPads iOS 9.3;2 iPhone 4s iOS 9.3
    Quote Originally Posted by mrplow View Post
    Just so I know where you're up to:

    1. you've connected to the router with an ethernet cable to your Mac.
    2. you've logged into the router, entered your own wifi password
    3. you've disconnected the ethernet cable
    4. You've detected the wireless network on your Mac and tried to connect enter the password you selected earlier
    5. Do you get an error? 'cannot join network' or similar
    Thanks. Yes.

  7. #7


    Member Since
    May 07, 2010
    Location
    UK
    Posts
    476
    Specs:
    2 21.5" iMacs 3.06 GHz Intel Core i3 500 Gb HD OS X 10.11.5; 2 iPads iOS 9.3;2 iPhone 4s iOS 9.3
    None of your preferred networks are available
    Quote Originally Posted by cwa107 View Post
    The simple answer to your question is - it's time to buy a new router.

    WEP is so hopelessly outdated and insecure that even with 128-bit encryption, it's easily cracked within 60 seconds and can be done with readily available tools that can be executed by the average 13-year-old.

    WPA long ago superseded WEP and even the lowliest $50 wireless routers support WPA and will outperform routers of that vintage in just about every measurable way.

    Advising you otherwise would be doing you a disservice, not only in wasting your time, but also creating a false sense of security.
    I have now bought a new wi-fi router and it is using WPA. My iMac is fine with it but, for some reason, my wife's comes up with a message "None of your preferred networks are available" prompting her to rejoin the network.

    I had thought that this might be connected to the fact that her login password had to be re-entered after an hour so I unticked that. As she is still getting the message there must be some other reason. Buffalo technical support say it's nothing to do with the router.

  8. #8


    Member Since
    May 07, 2010
    Location
    UK
    Posts
    476
    Specs:
    2 21.5" iMacs 3.06 GHz Intel Core i3 500 Gb HD OS X 10.11.5; 2 iPads iOS 9.3;2 iPhone 4s iOS 9.3
    Cannot join network
    Quote Originally Posted by cwa107 View Post
    The simple answer to your question is - it's time to buy a new router.

    WEP is so hopelessly outdated and insecure that even with 128-bit encryption, it's easily cracked within 60 seconds and can be done with readily available tools that can be executed by the average 13-year-old.

    WPA long ago superseded WEP and even the lowliest $50 wireless routers support WPA and will outperform routers of that vintage in just about every measurable way.

    Advising you otherwise would be doing you a disservice, not only in wasting your time, but also creating a false sense of security.
    I have now bought a new wi-fi router and it is using WPA. My iMac is fine with it but, for some reason, my wife's comes up with a message ' Cannot join network' prompting her to rejoin.

    I had thought that this might be connected to the fact that her login password had to be re-entered after an hour so I unticked that. As she is still gettting the message there must be some other reason. Buffalo technical support say it's nothing to do with the router.

  9. #9

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
    Posts
    6,854
    Specs:
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Air 2, New AppleTV (4?)
    So is this another iMac (which model/OS)?

    Have you used the same name for the network as your previous router? If so I'd suggest deleting that network name from the second iMac, reboot and reconnect afresh
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  10. #10


    Member Since
    May 07, 2010
    Location
    UK
    Posts
    476
    Specs:
    2 21.5" iMacs 3.06 GHz Intel Core i3 500 Gb HD OS X 10.11.5; 2 iPads iOS 9.3;2 iPhone 4s iOS 9.3
    Issue resolved
    Quote Originally Posted by mrplow View Post
    So is this another iMac (which model/OS)?

    Have you used the same name for the network as your previous router? If so I'd suggest deleting that network name from the second iMac, reboot and reconnect afresh
    Thanks, with help from Apple technical support it's been resolved by deleting all previous networks including 2 for the new router.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. password protecting
    By hitokaji in forum OS X - Operating System
    Replies: 1
    Last Post: 04-28-2011, 07:01 PM
  2. protecting with password
    By alexislalas in forum OS X - Operating System
    Replies: 6
    Last Post: 08-01-2007, 09:03 PM
  3. PASSWORD protecting documents
    By marley45 in forum OS X - Operating System
    Replies: 16
    Last Post: 07-26-2007, 12:16 PM
  4. Password Protecting a File
    By Corrosive in forum Switcher Hangout
    Replies: 4
    Last Post: 03-05-2007, 08:16 PM
  5. Password Protecting Folders
    By mattf87 in forum OS X - Operating System
    Replies: 3
    Last Post: 02-10-2007, 10:24 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •