"Access denied" na update Windows en Nextcloud Desktop

Hibbe · January 22, 2026, 10:27am

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Na een update van Windows 11 (25H2) en Nextcloud Desktop (4.0.5-x64) kan er geen verbinding gemaakt worden met de Nextcloud server via het account op Freedns.

Dit is zowel op mijn laptop als op mijn desktop PC.
Op mijn Raspberry PI400 werkt de Nextcloud desktop wel en heb ik daar goede synchronisatie met mijn Nextcloud server.

Het lijkt te maken te hebben met certificering maar ik heb geen idee op welke wijze ik dit aan kan passen.
Op de laptop is Nextcloud gedeïnstalleerd en weer geïnstalleerd maar dit geeft hetzelfde resultaat.
Nextcloud is ook opgestart via de commandpromt met de optie een logfile te maken, een deel van de inhoud volgt hier:

2026-01-22 09:40:20:343 \[ info nextcloud.gui.folderwatcher C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\folderwatcher.cpp:141 \]:	Permissions in file system for “E:/Cloud/.nextcloudpermissions.log” works as expected
2026-01-22 09:40:20:343 \[ info nextcloud.gui.folder.manager C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\folderman.cpp:741 \]:	Schedule folder  “1”  to sync!
2026-01-22 09:40:20:343 \[ info nextcloud.gui.folder.manager C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\folderman.cpp:754 \]:	Folder is not ready to sync, not scheduled!
2026-01-22 09:40:20:343 \[ warning nextcloud.gui.application C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\application.cpp:539 \]:	Account(s) setup result: OCC::AccountManager::AccountsRestoreSuccess
2026-01-22 09:40:20:343 \[ warning nextcloud.gui.application C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\application.cpp:540 \]:	1 folder(s) migrated
2026-01-22 09:40:20:343 \[ warning nextcloud.gui.application C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\application.cpp:541 \]:	1 account(s) migrated: “- ncp”
2026-01-22 09:40:20:358 \[ info nextcloud.sync.clientproxy C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\clientproxy.cpp:96 \]:	Set proxy configuration to use the preferred system proxy for http tcp connections
2026-01-22 09:40:20:362 \[ warning qt.core.qobject.connect unknown:0 \]:	QObject::connect(QNetworkInformation, OCC::Application): invalid nullptr parameter
2026-01-22 09:40:20:362 \[ warning nextcloud.sync.configfile C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\configfile.cpp:711 \]:	Default update channel is “stable”
2026-01-22 09:40:20:659 \[ warning nextcloud.gui.account.manager C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\accountmanager.cpp:682 \]:	Failed to read proxy password to keychain “Password entry not found”
2026-01-22 09:40:20:660 \[ info nextcloud.gui.account.state C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\accountstate.cpp:284 \]:	check connectivity
2026-01-22 09:40:20:660 \[ info nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:145 \]:	Fetch from keychain!
2026-01-22 09:40:20:789 \[ warning nextcloud.sync.credentials.keychainchunk C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\creds\\keychainchunk.cpp:349 \]:	Unable to read “Nextcloud_ncp_clientCertificatePEM:https://moriacloud.crabdance.com/:0” chunk “0” “Password entry not found”
2026-01-22 09:40:20:789 \[ warning nextcloud.sync.credentials.keychainchunk C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\creds\\keychainchunk.cpp:349 \]:	Unable to read “Nextcloud_ncp_clientKeyPEM:https://moriacloud.crabdance.com/:0” chunk “0” “Password entry not found”
2026-01-22 09:40:20:789 \[ warning nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:471 \]:	Unable to read client key “Password entry not found”
2026-01-22 09:40:20:790 \[ warning nextcloud.sync.credentials.keychainchunk C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\creds\\keychainchunk.cpp:349 \]:	Unable to read “Nextcloud_ncp_clientCaCertificatePEM0:https://moriacloud.crabdance.com/:0” chunk “0” “Password entry not found”
2026-01-22 09:40:20:790 \[ warning nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:513 \]:	Unable to read client CA cert slot “0” “Password entry not found”
2026-01-22 09:40:20:790 \[ info nextcloud.gui.account.state C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\accountstate.cpp:497 \]:	Fetched credentials for “https://moriacloud.crabdance.com” attempting to connect
2026-01-22 09:40:20:790 \[ info nextcloud.gui.account.state C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\accountstate.cpp:284 \]:	check connectivity
2026-01-22 09:40:20:790 \[ info nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:122 \]:	Get QNAM
2026-01-22 09:40:20:798 \[ info nextcloud.sync.connectionvalidator C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\connectionvalidator.cpp:76 \]:	No system proxy set by OS
2026-01-22 09:40:20:798 \[ info nextcloud.sync.accessmanager C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\accessmanager.cpp:72 \]:	2 “” “https://moriacloud.crabdance.com/index.php/204” has X-Request-ID “f6243bb3-360b-4718-98a0-9f00a01f27ae”
2026-01-22 09:40:20:798 \[ info nextcloud.sync.networkjob C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\abstractnetworkjob.cpp:382 \]:	OCC::CheckRedirectCostFreeUrlJob created for “https://moriacloud.crabdance.com” + “status.php” “OCC::ConnectionValidator”
2026-01-22 09:40:20:833 \[ info nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:411 \]:	request finished QUrl(“https://moriacloud.crabdance.com/index.php/204”) with request id “f6243bb3-360b-4718-98a0-9f00a01f27ae”
2026-01-22 09:40:20:833 \[ warning nextcloud.sync.networkjob C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\abstractnetworkjob.cpp:180 \]:	SslHandshakeFailedError:  “The server enforces strict transport security and does not accept untrusted certificates.”  : can be caused by a webserver wanting SSL client certificates
2026-01-22 09:40:20:833 \[ warning nextcloud.sync.networkjob C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\abstractnetworkjob.cpp:219 \]:	QNetworkReply::SslHandshakeFailedError “The server enforces strict transport security and does not accept untrusted certificates.” QVariant(Invalid)
2026-01-22 09:40:20:833 \[ warning nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:213 \]:	QNetworkReply::SslHandshakeFailedError
2026-01-22 09:40:20:833 \[ warning nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:214 \]:	“SSL-handdruk is mislukt: Fout bij SSL-handdruk: error:0A000419:SSL routines::tlsv1 alert access denied”
2026-01-22 09:40:20:833 \[ info nextcloud.sync.accessmanager C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\accessmanager.cpp:72 \]:	2 “” “https://moriacloud.crabdance.com/status.php” has X-Request-ID “364102d8-a321-463f-b26d-94c5e7a1ef7d”
2026-01-22 09:40:20:834 \[ info nextcloud.sync.networkjob C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\abstractnetworkjob.cpp:382 \]:	OCC::CheckServerJob created for “https://moriacloud.crabdance.com” + “status.php” “OCC::ConnectionValidator”
2026-01-22 09:40:20:836 \[ info nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:411 \]:	request finished QUrl(“https://moriacloud.crabdance.com/status.php”) with request id “364102d8-a321-463f-b26d-94c5e7a1ef7d”
2026-01-22 09:40:20:836 \[ warning nextcloud.sync.networkjob C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\abstractnetworkjob.cpp:180 \]:	SslHandshakeFailedError:  “The server enforces strict transport security and does not accept untrusted certificates.”  : can be caused by a webserver wanting SSL client certificates
2026-01-22 09:40:20:836 \[ warning nextcloud.sync.networkjob C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\abstractnetworkjob.cpp:219 \]:	QNetworkReply::SslHandshakeFailedError “The server enforces strict transport security and does not accept untrusted certificates.” QVariant(Invalid)
2026-01-22 09:40:20:836 \[ warning nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:213 \]:	QNetworkReply::SslHandshakeFailedError
2026-01-22 09:40:20:836 \[ warning nextcloud.sync.credentials.webflow C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\creds\\webflowcredentials.cpp:214 \]:	“SSL-handdruk is mislukt: Fout bij SSL-handdruk: error:0A000419:SSL routines::tlsv1 alert access denied”
2026-01-22 09:40:20:836 \[ warning nextcloud.sync.networkjob.checkserver C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\libsync\\networkjobs.cpp:697 \]:	error: status.php replied  0 “”
2026-01-22 09:40:20:838 \[ warning nextcloud.sync.connectionvalidator C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\connectionvalidator.cpp:154 \]:	QNetworkReply::SslHandshakeFailedError “SSL-handdruk is mislukt: Fout bij SSL-handdruk: error:0A000419:SSL routines::tlsv1 alert access denied” “The server enforces strict transport security and does not accept untrusted certificates.” “”
2026-01-22 09:40:20:838 \[ info nextcloud.gui.account.state C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\accountstate.cpp:390 \]:	AccountState connection status change:  OCC::ConnectionValidator::Undefined → OCC::ConnectionValidator::SslError
2026-01-22 09:40:20:840 \[ info nextcloud.gui.folder.manager C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\folderman.cpp:874 \]:	Account “ncp@moriacloud.crabdance.com” disconnected or paused, terminating or descheduling sync folders
2026-01-22 09:40:20:840 \[ info nextcloud.gui.account.state C:\\Users\\User\\AppData\\Local\\Temp\\windows-36586\\client-building\\desktop\\src\\gui\\accountstate.cpp:118 \]:	AccountState state change:  “Niet verbonden” → “Afgemeld”

Wie kan mij helpen met een oplossing?