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Connection Could not Be Established. Reason Unknown.



i have a error on my teamvier"Reason Unknown" Not sure what to do to fix

Please assist



  • j43
    j43 Posts: 2

    me too


  • bec
    bec Posts: 1

    How do you fix this error message


  • itsouth
    itsouth Posts: 4 ✭✭

    Anyone has a solution?



  • itsouth
    itsouth Posts: 4 ✭✭

    Well I never got a response too - I reinstalled the Host and it worked.

  • AlexFogerty
    AlexFogerty Posts: 32 ✭✭

    I'm seeing it too. It has only started doing this in the past 30 days.


  • AlexFogerty
    AlexFogerty Posts: 32 ✭✭
    As I haven't received a reply from TeamViewer on here I have opened a support ticket with them directly. I will let you guys know what the resolution is when / if I get one.
  • using a vpn is one of the temporary solution i have

  • AlexFogerty
    AlexFogerty Posts: 32 ✭✭
    Teamviewer Support suggested a complete uninstall and reinstall:

    1) Uninstall TeamViewer from the Control Panel > Programs & Features

    2) Delete the TeamViewer folder at below.
    C:\Program Files (x86)\TeamViewer

    3) Delete the TeamVewer keys in the Registry:
    HKEY_LOCAL MACHINE -> SOFTWARE -> TeamViewer [32 bit OS]
    HKEY_LOCAL MACHINE -> SOFTWARE -> Wow6432Node -> TeamViewer [64 bit OS]
    (*Deleting other important keys in registry may cause a serious problem to your computer.)

    4) Download TeamViewer and install
  • using teamviewer in osx

  • mcalin
    mcalin Posts: 1

    Followed the indicated steps and worked (reinstalled TV on the machine where got the error). Thanks to submitter