Knowledge Base - Patch Download Failure - "Error 403" or "Unknown Host Exception"

Problem

When Patch Connect Plus downloads patches from vendor sites, the process fails with "Error Code 403 or Unknown Host Exception".

Cause

Error code 403 occurs when the web server is not reachable or access to the server has been denied. This might happen due to various reasons such as, forbidden access, or connectivity issues.

Resolution

  1. Ensure that the configured Proxy settings has permission to download the install-able files from the below mentioned websites
  2. Applications Domain URLs
    7 zip https://www.7-zip.org
    8*8 - Virtual Office https://support.8x8.com
    AbleWord http://www.ableword.net
    ActiveState ActivePython 2 http://downloads.activestate.com
    Adobe Acrobat 10 Professional http://ardownload.adobe.com
    Adobe Acrobat 11 Standard http://*.adobe.com
    Adobe Shockwave Player https://fpdownload.macromedia.com
    AdoptOpenJDK 13, AutoHotkey, Brackets, Brave, Client Center for Configuration Manager, CMake, Conan Package Manager, ConEmu, Draw.io, DreamPie, DupeGuru, Get_iPlayer, gh-api-cli, Git, Git Extensions, GitAhead, GPL Ghostscript, Greenshot, grepWin, HandBrake, KeePassXC, KeeWeb, LAVFilters, LibreCAD, Markdown edit, mpv.net, mRemoteNG, NAPS, NSClient++, NVS, PDFsam Basic, PowerShell 6, Programmers Notepad, Rocket Chat, ScreenToGif, ShareX, StreamLink Twitch GUI, Terminals, TeXstudio, VidCutter, VSCodium https://github.com
    AI Viewer http://aiviewer.com
    Aimp http://aimp.su
    AirServer Universal http://airserver.blob.core.windows.net
    AirSquirrels Reflector, AirSquirrels Reflector Teacher https://download.airsquirrels.com
    Airtame https://downloads.airtame.com
    Alibre Design x64 https://alibre-usa.s3.amazonaws.com
    Allway Sync https://allwaysync.com
    Amazon Corretto https://d3pxv6yz143wms.cloudfront.net
    Amazon Redshift ODBC Driver, HipChat, SQLyog Community, Wickr https://s3.amazonaws.com
    Apple iTunes,iCloud http://updates-http.cdn-apple.com
    Apple Safari http://appldnld.apple.com
    Archi https://www.archimatetool.com
    ATnotes Version http://atnotes.free.fr
    Attendant Pro http://downloads.landiscomputer.com
    Auslogics http://downloads.auslogics.com
    Azure Data Studio https://azuredatastudiobuilds.blob.core.windows.net
    Bandicam, Bandicut https://dl.bandicam.com
    Bandizip https://dl.bandisoft.com
    Beyond Compare https://www.scootersoftware.com
    BigAntSoft Messenger http://www.bigantsoft.com
    Bitfocus Companion https://builds.bitfocus.io
    Blue Jeans https://swdl.bluejeans.com
    BlueJ http://www.bluej.org
    BOINC (x86) https://boinc.berkeley.edu
    Box Drive, Box for Office, Box Sync, Box Tools https://e3.boxcdn.net
    Calibre https://download.calibre-ebook.com
    Camtasia, Snagit https://download.techsmith.com
    CCleaner https://download.ccleaner.com
    Cerberus FTP Server https://www.cerberusftp.com
    Charles https://www.charlesproxy.com
    Cisco Proximity https://proximity.cisco.com
    Citrix Files https://dl.sharefile.com
    Cobian Backup 11 Gravity https://files.cobiansoft.com
    CollageIt http://www.collageitfree.com
    ColorImpact http://www.tigercolor.com
    ConTEXT http://www.contexteditor.org
    Core Temp https://www.alcpu.com
    CPUID CPU-Z http://download.cpuid.com
    Crypt-o https://www.soft-o.com
    Cryptomator https://dl.bintray.com
    CrystalDiskInfo https://mirrors.xtom.com
    Cyberduck https://update.cyberduck.io
    DBeaver https://dbeaver.io
    DeepBurner http://www.deepburner.com
    Dell Command Update, Dell SupportAssist Enterprise https://*.dell.com
    Deluge https://ftp.osuosl.org
    DiKe https://rinnovofirma.infocert.it
    Docker Desktop https://download.docker.com
    Dropbox https://clientupdates.dropboxstatic.com
    Druva inSync https://downloads.druva.com
    DU Meter http://dl2.hageltech.com
    Duo Authentication for Windows Logon https://dl.duosecurity.com
    Egnyte Connect https://egnyte-cdn.egnyte.com
    eM Client https://www.emclient.com
    EmEditor https://emeditor.blob.core.windows.net
    Enscape https://installer.enscape.io
    Evernote https://cdn1.evernote.com
    Everything https://www.voidtools.com
    FastStone Image Viewer http://www.faststonesoft.net
    FileZilla Client https://download.filezilla-project.org
    FlashBack Express http://ds.bbsoftware.co.uk
    FlashDevelop https://www.flashdevelop.org
    Fotosizer https://downloads.fotosizer.com
    Foxit PhantomPDF , Foxit Reader http://*.foxitsoftware.com
    Free Download Manager https://dn3.freedownloadmanager.org
    Free PDF https://www.pdfzilla.com
    Freemake Video Converter http://download.freemake.net
    FreePortScanner http://www.nsauditor.com
    FTPGetter Standard https://www.ftpgetter.com
    GanttProject https://dl.ganttproject.biz
    Geany https://download.geany.org
    Geeks3D FurMark https://geeks3d.com
    Geneious Prime (msi package) https://assets.geneious.com
    GeoGebra https://download.geogebra.org
    GIMP https://download.gimp.org
    Glary Utilities https://download.glarysoft.com
    GlassWire https://download.glasswire.com
    GMetrixSms6 http://www.gmetrix.net
    GoodSync https://www.goodsync.com
    Google Chrome, Google Drive, Google Drive File Stream, Google Earth pro, Hangouts Chat http://dl.google.com
    GoTo Opener, GoToMeeting Gpg4win
    Hamachi, LogMeIn https://secure.logmein.com
    HashTab http://implbits.com
    HeidiSQL https://www.heidisql.com
    Helix Versioning Engine https://www.perforce.com
    Honeycam, Honeyview http://dl.bandisoft.com
    HttpMaster https://www.httpmaster.net
    Huddle https://public.huddle.com
    Hugin, KeePass Password Safe, Open Office, Vuze, Pidgin, JEdit, PNotes.NET, PyScripter, TurboVNC, WinMerge, WinSCP, FrostWire, Mnemosyne, ProjectLibre, sciDAVis, Dev-C++, DisplayCAL, Freeplane http://*.dl.sourceforge.net
    Icinga 2 https://packages.icinga.com
    ImgBurn http://download.imgburn.com
    IrfanView https://files01.tchspt.com
    Iridium Browser https://downloads.iridiumbrowser.de
    IZArc https://www.izarc.org
    Jabra Direct https://jabraxpressonlineprdstor.blob.core.windows.net
    Jamovi (x64) https://www.jamovi.org
    Java https://*.oracle.com
    Java-Editor http://www.javaeditor.org
    Jing http://download.techsmith.com
    Jitsi http://download.jitsi.org
    K-Lite Codec Pack https://*.codecguide.com
    KakaoTalk http://app.pc.kakao.com
    Kerio Control VPN Client http://cdn.kerio.com
    Launchy http://www.launchy.net
    Lenovo System Update https://download.lenovo.com
    LibreOffice https://ftp.gwdg.de
    LiClipse https://www.mediafire.com
    LifeView https://files.ivari.ca
    Lightshot https://app.prntscr.com
    LLVM https://releases.llvm.org
    Logtalk https://logtalk.org
    LyX https://ftp.lip6.fr
    MailStore https://download.mailstore.com
    MariaDB https://downloads.mariadb.com
    MaxTo https://files.maxto.net
    MediaMonkey https://www.mediamonkey.com
    MicroDicom DICOM viewer http://www.microdicom.com
    Microsoft Power BI Desktop https://download.microsoft.com
    Microsoft Visual Studio Code https://az764295.vo.msecnd.net
    Minitab 19 https://files3.minitab.com
    Mirillis http://downloads.mirillis.com
    Mixxx https://downloads.mixxx.org
    MOOSLight https://www.moosprojectviewer.com
    Morae Recorder http://download.techsmith.com
    Mozilla http://download-installer.cdn.mozilla.net
    MozyEnterprise http://www.mozyenterprise.com
    MozyHome,MozyPro http://secure.mozy.com
    Mp3tag https://download.mp3tag.de
    Mumble http://download.mumble.com
    MuseScore 2 http://ftp.osuosl.org
    MuseScore 3 https://cdn.jsdelivr.net
    MYSQL Connector,MySQL Workbench CE https://cdn.mysql.com
    NCPA https://assets.nagios.com
    Network Recording Player, WebEx Recorder and Player, WebEx Teams https://*.webex.com
    Nitro Pro http://install.nitropdf.com
    Nmap https://nmap.org
    Node js https://nodejs.org
    Notepad++ http://download.notepad-plus-plus.org
    NoteTab Light https://www.notetab.com
    OBS Studio https://cdn-fastly.obsproject.com
    Ocenaudio https://www.ocenaudio.com
    OpenVPN https://swupdate.openvpn.org
    Opera Stable https://get.geo.opera.com
    Oxygen XML Editor https://*.oxygenxml.com
    Pale Moon http://*.palemoon.org
    PDF-XChange http://downloads.pdf-xchange.com
    PDF24 Creator https://stx.pdf24.org
    PeaZip https://www.peazip.org
    pgAdmin 4 https://ftp.postgresql.org
    PhotoFiltre http://static.infomaniak.ch
    Plantronics Hub https://www.plantronics.com
    Plex Media https://downloads.plex.tv
    Poedit https://download.poedit.net
    Poll Everywhere https://polleverywhere-app.s3.amazonaws.com
    PremiumSoft Navicat Essentials http://download3.navicat.com
    PuTTY https://the.earth.li
    QlikView https://da3hntz84uekx.cloudfront.net
    QueueExplore https://www.cogin.com
    QuiteRSS https://quiterss.org
    Razor SQL https://s3.dualstack.us-east-1.amazonaws.com
    RealPopup https://www.realpopup.it
    Reaper https://dlcf.reaper.fm
    Remote Desktop Manager https://cdn.devolutions.net
    RenWeb.com http://rwfs.renweb.com
    Rhino 5 Evaluation http://files.na.mcneel.com
    RingCentral http://*.ringcentral.com
    RoboForm https://www.roboform.com
    Royal TS https://download.royalapplications.com
    RStudio https://download1.rstudio.org
    Screenpresso https://cdn.screenpresso.com
    Seafile https://download.seadrive.org
    Serviio http://download.serviio.org
    Silverjuke https://www.silverjuke.net
    Simple Sticky Notes https://www.simplestickynotes.com
    Simply Fortran http://download.approximatrix.com
    Skype https://download.skype.com
    Slack https://downloads.slack-edge.com
    Slik Subversion https://sliksvn.com
    SnapGene Viewer https://www.snapgene.com
    SourceTree Enterpriser https://product-downloads.atlassian.com
    Speccy https://download.ccleaner.com
    Splash https://download.mirillis.com
    Splashtop Streamer https://d17kmd0va0f0mp.cloudfront.net
    Splunk https://download.splunk.com
    SRWare Iron https://www.srware.net
    Sticky Password https://downloads.stickypassword.com
    STP Viewer http://stpviewer.com
    Sublime Text https://download.sublimetext.com
    SugarSync http://download.sugarsync.com
    SumatraPDF http://kjkpub.s3.amazonaws.com
    Swift https://swift.im
    SyncBackFree https://www.2brightsparks.com
    Syncplicity https://download.syncplicity.com
    Synology Drive Client https://global.download.synology.com
    Tableau Desktop https://downloads.tableau.com
    TeamSpeak https://files.teamspeak-services.com
    TeamViewer https://*.teamviewer.com
    TED Notepad http://jsimlo.sk
    Tera Term https://osdn.mirror.liquidtelecom.com
    TestNav https://download.testnav.com
    TextExpander https://cdn.textexpander.com
    TextPad https://www.textpad.com
    TightVNC Viewer https://www.tightvnc.com
    Tomahawk https://download.tomahawk-player.org
    Iridium Browser https://downloads.iridiumbrowser.de
    TortoiseGit https://download.tortoisegit.org
    TortoiseHG https://bitbucket.org
    TortoiseSVN https://mirrors.gigenet.com
    Tray status https://binaryfortressdownloads.com
    TreeSize Free https://www.jam-software.com
    TSPrint https://www.terminalworks.com
    Tugzip http://www.koeln-krimis.de
    UltraEdit https://downloads.ultraedit.com
    UltraSearch https://downloads.jam-software.de
    UltraVNC (x64) https://www.uvnc.eu
    UrBackup http://hndl.urbackup.org
    Vagrant https://releases.hashicorp.com
    VI MonitorPlus http://downloadvi.com
    VirtualCloneDrive https://www.elby.ch
    VitalSource Bookshelf https://downloads.vitalbook.com
    Vivaldi https://downloads.vivaldi.com
    VLC Media Player https://download.videolan.org
    VMware https://*.vmware.com
    VNC https://www.realvnc.com
    Waterfox https://storage-waterfox.netdna-ssl.com
    WeChat https://dldir1.qq.com
    Windows Repair https://www.tweaking.com
    Wing Personal IDE https://wingware.com
    WinRAR https://www.rarlab.com
    WinUtilities Free Edition https://www.pcclean.io
    Winzip https://download.winzip.com
    Wireshark https://1.na.dl.wireshark.org
    Wise http://downloads.wisecleaner.com
    WXwork https://dldir1.qq.com
    XMind 8 https://dl3.xmind.net
    XnConvert http://download.xnview.com
    XnView https://download.xnview.com
    Zoho Mail - Desktop https://www.zoho.com
    Zoom https://d11yldzmag5yn.cloudfront.net
    Zulu https://cdn.azul.com
  3. In case if this problem continues, kindly Contact Support

    Keywords: Third-party patch management, Publish Patches, Download Patches