DNS not working

Domenico

It seems DNS name resolution is not working inside latest version of TV
(12.0.71510 NI) on Linux Ubuntu Zesty Zapu.

If I go to master4.teamviewer.com by browser I can read the diagnostic message "This site is running TeamViewer."

I enclose a little part of the log file.

Any help?

2017/01/27 23:37:00.037 5456 4127587136 NX0!!!CTcpConnectionBase[1]::HandleResolve(): Resolve failed, ping3.teamviewer.com, Error: asio.netdb:2
2017/01/27 23:37:00.037 5456 4127587136 NX0 Activating Router carrier
2017/01/27 23:37:00.040 5456 4115659584 NX0!! HttpRequestImpl::CurlFinished(): curl request failed: Couldn't resolve host name (6), Could not resolve host: ping3.teamviewer.com
2017/01/27 23:37:00.041 5456 4115659584 NX0!! Port443Connection::ConnectInternal: failed with HTTP status code = 0
2017/01/27 23:37:00.041 5456 4115659584 NX0!! NetWatchdog: Port 443 proxy search failed! No working setting found.
2017/01/27 23:37:00.041 5456 4115659584 NX0 Activating Router carrier
2017/01/27 23:37:00.044 5456 4135979840 NX0!! HttpRequestImpl::CurlFinished(): curl request failed: Couldn't resolve host name (6), Could not resolve host: ping3.teamviewer.com
2017/01/27 23:37:00.044 5456 4135979840 NX0!! NetWatchdog: Port 80 proxy search failed! No working setting found.
2017/01/27 23:37:00.044 5456 4135979840 NX0! CKeepAliveClientClient::HandlePing(): ping failed
2017/01/27 23:37:00.044 5456 4135979840 NX0 Activating Router carrier
2017/01/27 23:37:00.045 5456 4135979840 NX0 CProcessCommandHandlerMasterConnect[4]::CreateMasterConnect(): master4.teamviewer.com:80, Connection 4, proxy=''
2017/01/27 23:37:00.047 5456 4144372544 NX0!! HttpRequestImpl::CurlFinished(): curl request failed: Couldn't resolve proxy name (5), Could not resolve proxy: master4.teamviewer.com
2017/01/27 23:37:00.047 5456 4144372544 NX0! CProcessCommandHandlerMasterConnect[4]::HandleMasterConnect(): MasterConnect to 0.0.0.0 failed
2017/01/27 23:37:00.048 5456 4144372544 NX0!! LookUpDNS failed for master4.teamviewer.com, socket error = -3, Errorcode=11
2017/01/27 23:37:00.048 5456 4144372544 NX0!!!Connect to Master master4.teamviewer.com / failed!, Errorcode=11
2017/01/27 23:37:00.048 5456 4144372544 NX0!! CMasterConnectorAsio::HandleMasterResponseRegister(): MasterConnect failed. ErrorCode=10, Errorcode=11
2017/01/27 23:37:00.091 5456 4127587136 NX0 UpdateOnlineState newOnlineValue 1
20

millnet-maho

I'm having a similar problem, which seems to be caused by a bug in libcurl rather than in TeamViewer itself. With IPv6 enabled, libcurl fails to resolve various teamviewer.com hostnames: 

No wait, it's probably a bug in systemd-resolvd. I get the same result with wget and Firefox; if I limit traffic to either IPv4 or IPv6, it works, but without either -4 or -6, resolved returns an error.

$ curl http://router11.teamviewer.com/cname.aspx
curl: (6) Could not resolve host: router11.teamviewer.com

$ curl -6 http://router11.teamviewer.com/cname.aspx
IT-PMO-ANX-R005.teamviewer.com