Posted by narcsisuss
Photon

Connection not established authentication cancelled

Anyone know why I'm getting an error "Connection not established-authentication cancelled" when I try to connect all of a sudden? I was a little careless when I was clicking, but not sure what I did. 

184 Replies
Posted by Spenzer4Hire
Photon

Re: Connection not established authentication cancelled

I'm having this exact same problem all of a sudden, supporting my grandmother from across the country.

PC has been rebooted, it shows up in my connection list.  Remote control with password and prompt for confirmation both say the Authentication was Canceled (not rejected).  No prompt for confirmation is seen on the remote end.

Posted by tkuhmone
Trigon

Re: Connection not established authentication cancelled

I saw this also - to me it was the first of time autentication cancelled with TV13. I took a copy of teamviewer13 logfiles, from both local and remote PC's. I had release "13.1.3629" on both local and remote PC (free license). I do not know why remote logs state I am using "13.1.1548" -> TV13 Help & about menu -> shows 13.1.3629.

Is there any support personnel to look at these files ? I can sent them via email, if that is ok...

Posted by CHaecker
Henagon

Re: Connection not established authentication cancelled

I'm having the same problem. Roughly 30% of the clients I try to access give that error while others on the same network / same Hyper-V host are ok.

I think this started after I applied the last TeamViewer update but I'm not sure. I tried removing / reinstalling TV but same issue.

Any updates would be appreciated. My version is 13.1.3629.

Posted by 53Clubs
Henagon

Re: Connection not established authentication cancelled

I see a lot of people, like myself, having this problem - but nobody anwering or resolving it.  I've only been using Teamviewer as a paid service for a few months now, but seem to have no end to problems... Did I make a mistake for buying this service?

Posted by CHaecker
Henagon

Re: Connection not established authentication cancelled

Has anyone actually opened a support ticket regarding this issue?

I've been meaning to do so however to find the time has been a challenge. Will update when I do.

Posted by tkuhmone
Trigon

Re: Connection not established authentication cancelled

I think ticket needs be opened someone owning a paid license, There is comment on Teamviewer support pages:

"we are only able to offer support via Tickets to license owners"

-> I use only free version. Not planning to go for paid license....

*****************

fyi,

I took a look at logs for the case, when I once saw "autentication canceled" scenario for my TV 13 free version.

In the local PC logs almost identical connection phase (for both success and failed), but unsuccessful scenario has this kind of log entry:
************
2018/04/09 13:48:33.513 323912 323936 S0!! HttpRequestImpl::CurlFinished(): curl request failed: Timeout was reached (28), Operation timed out after 8000 milliseconds with 0 bytes received
************

In a successfull case (local PC logs), the session establishment continues with
************
2018/04/09 13:52:42.377 323912 323936 S0   CHttpConnectionOutgoing::ConnectHttpFastInternal(): Connect HttpFast to server24603.teamviewer.com:80 was successful
************

On the remote PC, logs show some encryption related error ??? -> see 6th row at sample below.
************
2018/04/09 13:48:25.346 10576  7120 D1   Connection incoming, sessionID = <ID removed here>
2018/04/09 13:48:25.346 10576 10692 D1   LoginDesktopWindowImpl::GuiThreadFunction(): ChangeThreadDesktop(): SetThreadDesktop to winlogon successful
2018/04/09 13:48:25.348 10576  7120 D1   IpcRouterClock: received router time: 20180409T104825.185800
2018/04/09 13:48:25.348 10576 10704 D1   CLogin::run()
2018/04/09 13:48:25.349 10576 10704 D1   CLogin::NegotiateVersionServer()
2018/04/09 13:48:25.349  2464  2532 S0   LegacyDataCmdSender[5]::SendAllData(): encryption not ready!
2018/04/09 13:48:40.999  2464  2524 S0   Carrier[5]::CmdEndSession(): Received CMD_ENDSESSION with reason: 13
2018/04/09 13:48:41.045  2464  2524 S0   ConnectionGuard: no restrictions
2018/04/09 13:48:41.045 10576  9740 D1!! SessionManagerDesktop::SessionTerminate: no session with ID=<ID removed here>
2018/04/09 13:48:41.045 10576 10704 D1!! CLogin::NegotiateVersionServer socket was closed while reading
2018/04/09 13:48:41.045 10576 10704 D1   CLogin::run() leave
************

Hopefully someone on the Teamviewer support has idea, what happens ???

Posted by 53Clubs
Henagon

Re: Connection not established authentication cancelled

I see someone has apparently tried to open a ticket, but has been seemingly 'denied' because they don't have a paid subscription.  

I DO have a paid subscription, but I got Teamviewer as a tool so I could help solve my client's problems - not so I could spend my time helping Teamviewer solve theirs.

Is there no moderator in these forums?... are they just for entertainment?

Posted by Ricaldo
Henagon

Re: Connection not established authentication cancelled

Hi The only fix found so far is the restart the host teamviewer, and you should be ok. i suspect it is a teamviewer network protocol issue Let me know I also used another connection type as backup like V.N.C to my client Let me know Thank you
Posted by Ricaldo
Henagon

Re: Connection not established authentication cancelled

Hi

I found by restarting the teamviewer session solved this

I suspect it is a network protocol issue Teamviewer has, 

I tend to use backup connection type(s) 

let me know

Thank you

Posted by Ricaldo
Henagon

Re: Connection not established authentication cancelled

Hi

I found by restarting the client teamviewer session solved this

I suspect it is a network protocol issue Teamviewer has, 

I tend to use backup connection type(s) 

let me know

Thank you

Posted by tkuhmone
Trigon

Re: Connection not established authentication cancelled

Content deleted... I could now see my earlier post...

Posted by tkuhmone
Trigon

Re: Connection not established authentication cancelled

I saw this error scenario again (TV13 free license). Now remote log has following entries:

2018/04/27 17:14:01.592  2736  2808 S0   SecureNetworkConnection::SendCallbackHandler(): [ remoteID: ###### connection: 0 remoteConnection: ###### ], Error: SecureNetwork (Connection not found)
2018/04/27 17:14:01.592  2736  2808 S0!! SecureNetworkImplementation::ReceivedNewRevocationCheck: Error: Connection not found
2018/04/27 17:14:01.592  2736  2808 S0!! HandshakeServer::ReceivedClientHello: [remote ID: ###### , connection ID: 1, remote connection ID: 0] invalid private key

When I try connection again after this - it goes ok in my case. I did not need make a forced reset to teamviewer service / process in remote PC....

Posted by Mrorpheus
Digon

Re: Connection not established authentication cancelled

Just to let you know, I found a fix, I'm not sure it will work.

My Teamviewer had done this, then next morning it was asking me to loggin again, which I did and then it worked.

Trying to connect again later, I had the same problem, so I logged out and then back in again and it seems to have worked again. I hope this is a fix.

 

Posted by DarthKevin
Digon

Re: Connection not established authentication cancelled

I added the following exclusions in Defender on Windows 10 and it seems to have made this problem less frequent. Your mileage may vary.TeamViewer Exclusions.PNGWindows 10 Defender Exclusions

 

 

 

Kevin Taylor, CGCIO
Director of Information Technology
City of Eden
Eden, NC
Posted by timo9
Henagon

Re: Connection not established authentication cancelled

it doesn't work.. because i have tried to login on different computers

Posted by nnguyen
Henagon

Re: Connection not established authentication cancelled

All our techs are having the same issue.

I have an established connection which has not dropped but can't establish any new ones.

Seems to be world wide

Posted by Scottd
Henagon

Re: Connection not established authentication cancelled

im having the same problem 

Posted by nerissa
Henagon

Re: Connection not established authentication cancelled

Same problem here
Posted by CherieAnn
Henagon

Re: Connection not established authentication cancelled

Yeah I've got the same issue as well! Can't establish any connections on a corporate licence. Hopeless.

Posted by qle
Henagon

Re: Connection not established authentication cancelled

Same here....

Posted by muzzbuzz
Henagon

Re: Connection not established authentication cancelled

We are having the same issue. It's on Teamviewer's side. Multiple stations and systems are affected. 

Posted by Royce
Digon

Re: Connection not established authentication cancelled

Me too... TV is dead at the moment.

Posted by ATJussi
Photon

Re: Connection not established authentication cancelled

Likewise... 1 second "connecting" and back to "ready to connect" on a W10 PC. On a Mac 5 secs...

Posted by CherieAnn
Henagon

Re: Connection not established authentication cancelled

I have submitted a ticket, but who knows if/when I will get a response.

Highlighted
Posted by Rajesh24
Henagon

Re: Connection not established authentication cancelled

Me too - same issue since this morning. 

Posted by muzzbuzz
Henagon

Re: Connection not established authentication cancelled

We did as well. This is the second time for the last month.
Posted by FlexiAdmin
Electron

YATC - Re: Connection not established authentication cancelled

YATC

Yet Another Teamviewer Crash

Posted by BiroplastBP
Digon

Re: Connection not established authentication cancelled

Me too - same issue since this morning. **bleep** ???

Posted by Jason86
Henagon

Re: Connection not established authentication cancelled

Any danger of Teamviewer helping the last dozen posts?

Posted by Catnutter
Electron

Re: Connection not established authentication cancelled

I have logged a docket but I think that might be a waste of time
Posted by cfield03
Henagon

Re: YATC - Re: Connection not established authentication cancelled

I am down also in Salt Lake City, Utah
Posted by jolsen
Henagon

Re: Connection not established authentication cancelled

Down in Fort Worth, TX

Posted by SmartCover
Henagon

Re: Connection not established authentication cancelled

Down in Melbourne, Australia

Posted by Mkolberg
Digon

Re: Connection not established authentication cancelled

Same Problem in Munic (Germany)

Posted by ToMa13
Electron

Re: Connection not established authentication cancelled

I am down also in Linz, Austria
Posted by InfratectsAu
Digon

Re: Connection not established authentication cancelled

Yep same here....in australia....cant reach any of our client machines - restarting teamviewer host on client machine makes no difference.

Posted by Pharmacy777
Digon

Re: Connection not established authentication cancelled

Down In Perth Australia, Support Ticket lodged, However this does not help my 50 odd clients when they need support.

Posted by BSSS
Electron

Re: Connection not established authentication cancelled

I have the same issue, also in Australia!

Posted by muzzbuzz
Henagon

Re: Connection not established authentication cancelled

We're in WA.
Posted by Czermeno
Electron

Re: Connection not established authentication cancelled

Same issue Mexicali, Mexico

Posted by todaewon
Electron

Re: Connection not established authentication cancelled

It's the same issue in Korea

Posted by Teflink
Electron

Re: Connection not established authentication cancelled

Same here in Canada!
Posted by ToMa13
Electron

Re: Connection not established authentication cancelled

Oh seems WE Experience a World Wide TV Courage!
Posted by ronie2018
Electron

Re: Connection not established authentication cancelled

Me too

Posted by jlouish25
Henagon

Re: Connection not established authentication cancelled

Same here in France

Posted by YameZz
Henagon

Re: Connection not established authentication cancelled

Yep - happening on our corporate licence... restarting TV host doesn't work, nor does reinstalling it.
Posted by FlexiAdmin
Electron

Re: Connection not established authentication cancelled

I guess - some "redmondster" installed 1809 on the WIN 10 TV server ;-)
Posted by KKPS
Henagon

Re: Connection not established authentication cancelled

Hier geht auch nichts mehr. Hätte heute um 06.00 Uhr dringend Zugriff auf Kunden PCs gebraucht.

Posted by LarsK
Electron

Re: Connection not established authentication cancelled

Same problem here. Tried on 3 different hosts on 2 seperate internet connections. Have a paid license.

I have created a support ticket