can't connect to server. dns issues. getaddrinfo failed

[SomberNight]

Hi,
I don't want to open new issue, when this one is not solved. I have same problem, can't connect to server. I have tried standalone version from 3.3.5 to 3.3.8. All of them show same message "Not Connected" and this I found in logs:

20190913T073024.547791Z |     INFO | logging | Electrum version: 3.3.8 - https://electrum.org - https://github.com/spesmilo/electrum
20190913T073024.548768Z |     INFO | logging | Python version: 3.6.8 (tags/v3.6.8:3c6b436a57, Dec 23 2018, 23:31:17) [MSC v.1916 32 bit (Intel)]. On platform: Windows-10-10.0.17763
20190913T073024.548768Z |     INFO | logging | Logging to file: C:\Users\elct\AppData\Roaming\Electrum\logs\electrum_log_20190913T073024Z_10556.log
20190913T073024.548768Z |     INFO | logging | Log filters: verbosity '', verbosity_shortcuts ''
20190913T073025.552601Z |     INFO | daemon | failed to connect to JSON-RPC server: [WinError 10061] No connection could be made because the target machine actively refused it
20190913T073025.562362Z |     INFO | plugin.Plugins | registering hardware coldcard: ('hardware', 'coldcard', 'Coldcard Wallet')
20190913T073025.563338Z |     INFO | plugin.Plugins | registering hardware digitalbitbox: ('hardware', 'digitalbitbox', 'Digital Bitbox wallet')
20190913T073025.566299Z |     INFO | plugin.Plugins | registering hardware keepkey: ('hardware', 'keepkey', 'KeepKey wallet')
20190913T073025.700954Z |     INFO | gui.qt.history_list | could not import electrum.plot. This feature needs matplotlib to be installed.
20190913T073025.704858Z |     INFO | plugin.Plugins | loaded labels
20190913T073025.705834Z |     INFO | plugin.Plugins | registering hardware ledger: ('hardware', 'ledger', 'Ledger wallet')
20190913T073025.706810Z |     INFO | plugin.Plugins | registering hardware safe_t: ('hardware', 'safe_t', 'Safe-T mini wallet')
20190913T073025.707786Z |     INFO | plugin.Plugins | registering hardware trezor: ('hardware', 'trezor', 'Trezor wallet')
20190913T073025.708762Z |     INFO | plugin.Plugins | registering wallet type ('2fa', 'trustedcoin')
20190913T073025.709738Z |    DEBUG | util.profiler | Plugins.__init__ 0.1493
20190913T073025.711725Z |     INFO | network | blockchains [0]
20190913T073025.711725Z |     INFO | exchange_rate.FxThread | using exchange CoinGecko
20190913T073025.712707Z |     INFO | network | starting network
20190913T073025.712707Z |     INFO | network | connecting to electrum-server.ninja:50002:s as new interface
20190913T073025.714648Z |     INFO | exchange_rate.CoinGecko | getting fx quotes for EUR
20190913T073025.715617Z |    DEBUG | util.profiler | Daemon.__init__ 0.0059
20190913T073026.372438Z |    DEBUG | util.profiler | ElectrumGui.__init__ 0.6559
20190913T073026.378295Z |     INFO | storage.WalletStorage | wallet path c:\users\radoslav.chovan\appdata\roaming\electrum\wallets\osx
20190913T073026.788214Z |     INFO | storage.WalletStorage | wallet path c:\users\radoslav.chovan\appdata\roaming\electrum\wallets\osx
20190913T073026.789189Z |     INFO | storage.WalletStorage | wallet path c:\users\radoslav.chovan\appdata\roaming\electrum\wallets\osx
20190913T073026.891670Z |     INFO | interface.[electrum-server.ninja:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.891670Z |     INFO | interface.[enode.duckdns.org:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.891670Z |     INFO | interface.[electrumx.erbium.eu:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.892645Z |     INFO | interface.[qtornadoklbgdyww.onion:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.892645Z |     INFO | interface.[electrum2.villocq.com:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.893623Z |     INFO | interface.[electrumx.ml:50002] | disconnecting due to: ConnectError(gaierror(11001, 'getaddrinfo failed'),)
20190913T073026.893623Z |     INFO | interface.[fedaykin.goip.de:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.894597Z |     INFO | interface.[btchub.fr:50002] | disconnecting due to: ConnectError(gaierror(11001, 'getaddrinfo failed'),)
20190913T073026.894597Z |     INFO | interface.[hsmiths4fyqlw5xw.onion:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.894597Z |     INFO | exchange_rate.CoinGecko | failed fx quotes: ClientConnectorError(11001, 'getaddrinfo failed')
20190913T073026.895572Z |     INFO | network | couldn't launch iface electrum-server.ninja:50002:s -- CancelledError()
20190913T073026.896550Z |     INFO | network | couldn't launch iface enode.duckdns.org:50002:s -- CancelledError()
20190913T073026.896550Z |     INFO | network | couldn't launch iface electrumx.erbium.eu:50002:s -- CancelledError()
20190913T073026.896550Z |     INFO | network | couldn't launch iface qtornadoklbgdyww.onion:50002:s -- CancelledError()
20190913T073026.896550Z |     INFO | network | couldn't launch iface electrum2.villocq.com:50002:s -- CancelledError()
20190913T073026.896550Z |     INFO | network | couldn't launch iface electrumx.ml:50002:s -- CancelledError()
20190913T073026.897535Z |     INFO | network | couldn't launch iface fedaykin.goip.de:50002:s -- CancelledError()
20190913T073026.897535Z |     INFO | network | couldn't launch iface btchub.fr:50002:s -- CancelledError()
20190913T073026.898508Z |     INFO | network | couldn't launch iface hsmiths4fyqlw5xw.onion:50002:s -- CancelledError()
20190913T073026.904359Z |     INFO | interface.[xray587.startdedicated.de:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073026.905333Z |     INFO | network | couldn't launch iface xray587.startdedicated.de:50002:s -- CancelledError()
20190913T073027.203395Z |     INFO | interface.[VPS.hsmiths.com:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.203395Z |     INFO | interface.[hsmiths5mjk6uijs.onion:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.203395Z |     INFO | interface.[bitcoins.sk:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.203395Z |     INFO | interface.[electrumx.bot.nu:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.203395Z |     INFO | interface.[bitcoin.corgi.party:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.203395Z |     INFO | interface.[electrum.eff.ro:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.203395Z |     INFO | interface.[vmd27610.contaboserver.net:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.204371Z |     INFO | interface.[bitcoin3nqy3db7c.onion:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.204371Z |     INFO | interface.[electrum2.eff.ro:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(gaierror(11001, 'getaddrinfo failed'),),)
20190913T073027.204371Z |     INFO | network | couldn't launch iface VPS.hsmiths.com:50002:s -- CancelledError()
20190913T073027.204371Z |     INFO | network | couldn't launch iface hsmiths5mjk6uijs.onion:50002:s -- CancelledError()
20190913T073027.204371Z |     INFO | network | couldn't launch iface bitcoins.sk:50002:s -- CancelledError()
20190913T073027.204371Z |     INFO | network | couldn't launch iface electrumx.bot.nu:50002:s -- CancelledError()
20190913T073027.204371Z |     INFO | network | couldn't launch iface bitcoin.corgi.party:50002:s -- CancelledError()
20190913T073027.205388Z |     INFO | network | couldn't launch iface electrum.eff.ro:50002:s -- CancelledError()
20190913T073027.205388Z |     INFO | network | couldn't launch iface vmd27610.contaboserver.net:50002:s -- CancelledError()
20190913T073027.205388Z |     INFO | network | couldn't launch iface bitcoin3nqy3db7c.onion:50002:s -- CancelledError()
20190913T073027.205388Z |     INFO | network | couldn't launch iface electrum2.eff.ro:50002:s -- CancelledError()

Log is repeating and equal for all versions. I have tried to run electrum as admin user too.

Windows 10/64bit

Originally posted by @rchovan in #5368 (comment)

[SomberNight]

This is to do with DNS resolution.

Do you have python3 installed separately? It might be useful to debug this.

In Electrum, go to the Console tab (View>Show Console), and then run this:
(it tries to connect to google.com on https port 443)

import socket; sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM); sock.settimeout(10); sock.connect(("google.com", 443)); print("it worked")

if it prints it worked on the next line, then it managed to connect; otherwise there will probably be a traceback/error

If you get an error, besides pasting it here, it would be useful if now you could test running the same line in a separate python3 interpreter.

[rchovan]

Hi,
it worked on console and python cli too. Green image is python CLI in ConEmu.

but still can't connect.

[SomberNight]

Could you try running this too?

import dns; print([str(answer) for answer in dns.resolver.query("google.com", dns.rdatatype.A)])

[rchovan]

Hi,
yes, I'm ready to help. Feel free to leave comment if you need anything to test. Here is result, again green window is python CLI.

[SomberNight]

This is related to the DNS hacks we do on Windows (e.g. #4486) due to #4421

dnspython fails for OP and we fail to fallback to the original (socket.getaddrinfo) resolver

[SomberNight]

@rchovan until there is a new release, one workaround you can try is using a proxy

For example, open the Tor Browser in the background, and in Electrum in the network settings (orb in bottom right), Proxy > Use Tor proxy at port ...