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SEC_LinkShare SSID is from your Samsung TV: SWL (Samsung Wireless Link)

Posted by Jeroen Pluimers on 2011/07/04

While playing around to improve the WiFi network reception of my Samsung LED TV, I enabled SWL.

It didn’t do much on the WiFi reception, but I found out that after enabling SWL, other devices could hardly find my regular access point any more.

Somehow, a very strong access point appeared pushing away all access points. The new access point had an SSID like SEC_LinkShare_######.

Though this wasn’t mentioned in the PDF  manual of my TV, a quick search on SEC_LinkShare+SSID indicated in the direction of Samsung devices.

So, when you enable SWL on your TV:

  1. your TV will become a local secured access point
  2. the SWL access point will be called SEC_LinkShare_###### (with 6 digits at the end)
  3. you cannot influence the WiFi channel used by the SWL access point
  4. there is no information on the password to connect to the SWL access point
  5. the SWL access point will potentially have a higher signal than access points further away (effectively blocking them)
Conclusion: Unless you have other Samsung devices that need the SWL, don’t activate it on your TV.
–jeroen

32 Responses to “SEC_LinkShare SSID is from your Samsung TV: SWL (Samsung Wireless Link)”

  1. How can I disable this shit?

    • jpluimers said

      You can switch off SWL by following the steps in the manual of your TV. The manual of my TV can be found here: http://www.samsungworld.nl//nl/download/product/UE46C6800USXXN/manuals

    • Axel Skough said

      To switch off the SWL at its source requires that you are controlling this source, a Samsung SMART TV or whatsoever. This solution is not always possible.

      I did it in another way.

      My situation is that I was working with a wireless repeater, What the SWL host did was to send connect requests, i e, connect with a WPA/WPA2 password,and – most likely – doing the same thing with for example WEP keys or something alike to create a connection, indeed activating the authenication process. This was done with a reasonable high frequency – i counted 567 retries in five minutes, about 2 retries per second.

      This caused my wireless repeater to run out of internal RAM memory so it tried recovery by rebooting itself. Funny, isn’t it? But the rebootings of course disturbed all other traffic through interrupts while rebooting. That one doesn’t want to have.

      So what to do? I don’t have access to this malicious SWL host. But I noticed its MAC address! And put it on the repeater’s block list. The advantage is that the SWL host will not access the resource-consuming authenication process, The packets are refused promptly due to the sender’s MAC adress used. And this seems to be sufficient when the intensity of this malicious traffic is only two retries per second. The principle can of course be more refined, but in this case it seems to be sufficient to avoid this unwanted traffic from the SWL host.

      Hopefully this tip can help someone!

  2. mRc said

    How to Connect with SEC_Linkshare without WPS

    1. Connect your Computer via WPS
    2. Download WirelessKeyView (http://www.nirsoft.net/utils/wirelesskeyview.zip)
    3. Open WirelessKeyView & search for SEC_Linkshare_######
    4. Use the Key (Ascii)
    5. Connect other Devices without WPS
    6. Enjoy!

  3. Chris said

    I was able to break it and get the wpa2 key.. Now i am able to connect devices to my tv…. it took 10 secs for me.. A little bit of hacking but it easy..

  4. James HOLMBERG said

    After contacting Samsung, I have been advised that this SEC ShareLink is to connect other Samsung devices (DVD, Blu Ray, Hi Fi.. etc…) wirelessly, to your Samsung TV, would have the passcode embedded in the device.
    Best thing to do is to turn the SWL off.

  5. S@ndro said

    I managed to open it WPA2 is a 30-character combination of letters and numbers. Works great Now I can connect with anything PC, iPhone, etc. S @ ndro

  6. Paul said

    Finally, I find out my new Samsung had the wireless set on. I turned it off….all is good

  7. zekeadam said

    I cracked the tv-s pass with reaver. Now Im using as a repeater for my xbox.
    Cracking is took 5sec beacuse the wps pin is 00000000

  8. Sebaatian d. said

    Hi eine Frage was ist das passwort von dem swl ich möchte mit meinem handy über den tv online gehen ? danke im vorraus :)

    • jpluimers said

      Das Kennwort habe ich versucht heraus zu finden, ist aber bisher nicht gelungen.
      Wenn du es irgendwo findest, bitte als Kommentar hier hinfügen.
      Danke :)
      –jeroen

  9. Tim said

    Excellent post. Was very puzzled by this LinkShare entry.

    Dead right about it selecting the same WiFi channel as the router. I also tried changing the router channel and the TV followed it!

  10. ronaldo said

    qual a senha sec_link

  11. Sebastian said

    Thanks, very helpful! Another problem is that the SEC_LinkShare-WLAN that is created by the TV always broadcasts on the same wireless channel than your router. If you change your router WLAN channel to 5 -> The SEC_Linkshare-WLAN will also change to 5. It always overlays your primary wireless internet connection and causes a channel conflict partially affecting stability and performance.

    Aftre switching off SWL (thanks to this thread) I could slightly improve my wireless connection to the TV.
    Tested on Samsung UE60D8090 connected via wireless, Belkin PlayMax router connected via 32MBIT cable model connection.

    Regards, Sebastian

  12. Gloria said

    Thanks. Very helpful advise.
    Did you find out where the password can be located to access the SWL?
    I am having problems linking my Samsung D8000 to the router. It simply cannot detect the router. Any tips on how to make it work are very welcome.

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