Support - SparkLabs

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Support - SparkLabs</title> <link href="/static/css/bootstrap.min.css" rel="stylesheet"> <link href="/static/css/sl_styles.css" rel="stylesheet">   <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png"> <link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5"> <meta name="msapplication-TileColor" content="#da532c"> <meta name="theme-color" content="#ffffff"> <script src="/static/js/moment.min.js"></script> <link href="/blog/feed/" rel="alternate" title="SparkLabs Blog" type="application/atom+xml"> </head> <body> <div class="sl_header_background_generic" id="slheader"> <nav class="navbar navbar-default bs-docs-nav"> 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sl_header"> <div class="row"> <div class="col-md-12"> <h1 class="sl_headertext">App <span style="font-weight: 400;">Support.</span></h1> <h1 class="sl_subheadertext">We're here to help.</h1><br /> </div> </div> </div> </div>  <div class="content">  <div class="sl_row_gradient"> <div class="container"> <div class="row sl_paddedrow"> <div class="col-md-12"> <ol class="breadcrumb"><li><a href="/support/kb/">Knowledge Base</a></li><li>Common OpenVPN Errors</li></ol><br /> </div> <div class="col-md-12"> <h3 class="sl_section_header">Common OpenVPN Errors</h3> <div class="list-group"> <a href="/support/kb/article/error-auth-received-control-message-auth_failed/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: AUTH: Received control message: AUTH_FAILED</a> <a href="/support/kb/article/error-cannot-load-certificate-file-cert-crt/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Cannot load certificate file cert.crt</a> <a href="/support/kb/article/error-connection-name-could-not-be-connected/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Connection Name Could Not Be Connected</a> <a href="/support/kb/article/error-inactivity-timeout-ping-restart/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Inactivity timeout (--ping-restart)</a> <a href="/support/kb/article/error-insecure-signature-digest-detected/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Insecure Signature Digest Detected</a> <a href="/support/kb/article/error-private-key-password-verification-failed/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Private key password verification failed</a> <a href="/support/kb/article/error-server-cipher-negotiation-not-supported/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Server Cipher Negotiation Not Supported</a> <a href="/support/kb/article/error-server-encryption-cipher-disallowed/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Server Encryption Cipher Disallowed</a> <a href="/support/kb/article/error-socket-bind-failed-on-local-address/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Socket bind failed on local address</a> <a href="/support/kb/article/error-tcp-connect-to-address-failed-will-try-again-in-5-seconds/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: TCP: connect to address failed, will try again in 5 seconds</a> <a href="/support/kb/article/error-the-command-auth-federate-or-one-of-its-parameters-is-invalid/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: The command "auth-federate" or one of its parameters is invalid</a> <a href="/support/kb/article/error-the-tap-system-extension-could-not-be-loaded/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: The TAP system extension could not be loaded</a> <a href="/support/kb/article/error-the-tap-system-extension-was-blocked-from-loading/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: The TAP system extension was blocked from loading</a> <a href="/support/kb/article/error-tls-error-tls-key-negotiation-failed-to-occur-within-60-seconds/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: TLS Error: TLS key negotiation failed to occur within 60 seconds</a> <a href="/support/kb/article/error-unsafe-openvpn-command-detected/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Unsafe OpenVPN command detected</a> <a href="/support/kb/article/error-unsupported-tls-protocol-detected/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Unsupported TLS Protocol Detected</a> <a href="/support/kb/article/error-viscosity-helper-tool-disabled/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: Viscosity Helper Tool Disabled</a> <a href="/support/kb/article/error-write-to-tun-tap-input-output-error-code-5/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: write to TUN/TAP : Input/output error (code=5)</a> <a href="/support/kb/article/error-you-must-define-ca-file-ca-or-pkcs-12-file-pkcs12/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Error: You must define CA file (--ca) or PKCS#12 file (--pkcs12)</a> <a href="/support/kb/article/note-unable-to-redirect-ipv4-default-gateway-vpn-gateway-parameter-is-missing/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Note: Unable to redirect IPv4 default gateway: VPN gateway parameter is missing</a> <a href="/support/kb/article/time-machine-backups-could-not-be-disabled/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Time Machine Backups Could Not Be Disabled</a> <a href="/support/kb/article/warning-a-connection-reset-occurred-with-a-legacy-cipher-command-present/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Warning: A connection reset occurred with a legacy cipher command present</a> <a href="/support/kb/article/warning-bad-compression-stub-decompression-header-byte/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Warning: Bad compression stub decompression header byte</a> <a href="/support/kb/article/warning-split-dns-is-being-used-however-no-dns-domains-are-present/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Warning: Split DNS is being used however no DNS domains are present</a> <a href="/support/kb/article/warning-the-block-outside-dns-option-has-been-ignored/" class="list-group-item"><span class="glyphicon glyphicon-asterisk" aria-hidden="true"></span>   Warning: The block-outside-dns option has been ignored</a> </div> </div> </div> </div> </div>   <div class="contact-bar"> <div class="container"> <div class="row vertical-align sl_paddedcell_top"> <div class="col-xs-1"></div> <div class="col-xs-2 text-center"> <i id="icons8-search" class="icons8-search contact-icon" style="font-size:54px;padding-left:5px;"></i> </div> <div class="col-xs-7"> <h3 style="color:#fff;">Search Knowledge Base</h3> <p style="color:#fff;" class="text-justify">Search our knowledge base for guides and documentation.</p> <form id="kbsearch" name="kbsearch" method="post" action="/support/kb/search/"> <div class="input-group"> <input name="query" type="text" class="form-control" placeholder="Search for..."> <span class="input-group-btn"> <button class="btn btn-default" type="submit">Search</button> </span> </div> </form> </div> </div> </div> </div>  <script src="/static/js/jquery-3.3.1.min.js"></script> <footer class="bs-docs-footer"> <div style="background-color:#34373a;"> <div class="container"> <div class="row footer_twitter_row"> <div class="col-md-1"> <img src="/static/img/bsky-logo.svg" height=22px style="opacity:0.4;margin-top:14px;" /> </div> <div class="col-md-9"> <p style="color:#bbb;">Follow us on Bluesky <a href="https://bsky.app/profile/sparklabs.com"> @sparklabs.com </a> <span style="color:#666;"> — </span> <span style="color:#bbb;">Viscosity 1.11.4 is now available for macOS! This update restores the performance of TAP VPN connections on macOS 15.0.1+, includes an updated version of OpenSSL, general performance improvements, and small bug fixes and enhancements. www.sparklabs.com/blog/viscosi...</span></p> </div> <div class="col-md-2"> <p style="color:#777;">(<script>document.write(moment("1733234858.0", "X").fromNow());</script>)</p> </div> </div> </div> </div> <div style="background-color:#191a1b;"> <div class="container"> <div class="row"> <div class="col-md-12"> <div class="row footer_link_row"> <div class="col-sm-4 col-md-2 columns" style="color:#555;"><h5>Apps</h5><ul style="list-style:none;padding-left:0;margin-left:0;"><li><a href="/viscosity/">Viscosity</a></li></ul> </div> <div class="col-sm-4 col-md-2 columns" style="color:#555;"><h5>Company</h5><ul style="list-style:none;padding-left:0;margin-left:0;"><li><a href="/company/">About</a></li><li><a href="/blog/">Blog</a></li><li><a href="/support/">Support</a></li><li><a href="/store/">Store</a></li></ul> </div> <div class="col-sm-4 col-md-2 columns" style="color:#555;"><h5>Support</h5><ul style="list-style:none;padding-left:0;margin-left:0;"><li><a href="/support/">Support Home</a></li><li><a href="/support/kb/">Knowledge Base</a></li><li><a href="/forum/">Forum</a></li><li><a href="/support/#contact">Contact Us</a></li></ul> </div> <div class="col-sm-2 col-md-2 columns" style="color:#555;"> </div> <div class="col-sm-12 col-md-4 columns" style="color:#555;"><h5>Stay Updated</h5><ul style="list-style:none;padding-left:0;margin-left:0;"><li class="text-justify">Keep up with the latest important SparkLabs news and updates with our (very) occasional newsletter.</li><li> <div class="input-group" style="padding-top:1em;"> <input type="text" class="form-control" placeholder="Email address" style="background-color:#333;border:0;color:#666;width:100%;" name="email" id="footer-emailinput"> <span class="input-group-btn"> <button class="btn btn-default" data-toggle="modal" data-target="#newsletter" style="background:transparent;border-color:#333;color:#666;">Subscribe</button> </span> </div> </li></ul> </div> </div> </div> </div> <div class="row"> <div class="col-md-12 text-center"> <hr style="border:0;height:0;border-bottom:1px solid #222;"> </div> </div> <div class="row" style="padding-top:1em;padding-bottom:2em;"> <div class="col-md-12 text-center"> © SparkLabs Pty Ltd. 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