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Sorry to hear you’re facing problems 
help.nextcloud.com is for home/non-enterprise users. If you’re running a business, paid support can be accessed via portal.nextcloud.com where we can ensure your business keeps running smoothly.
In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version (eg, 20.0.5): 23.0.0
Operating system and version (eg, Ubuntu 20.04): Linux 4.4.180+ x86_64 (Synology)
Apache or nginx version (eg, Apache 2.4.25): 2.4.51
PHP version (eg, 7.4): 8.0.14
The issue you are facing:
Unable to log into NextCloud using Brave or other Chromium-based browsers like Chrome. Can log in with Firefox though.
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
- Go to NextCloud installation with Brave or Chrome. See “We have detected multiple invalid login attempts from your IP. Therefore your next login is throttled up to 30 seconds”
- Wait 30 seconds or don’t wait 30 seconds, doesn’t seem to matter. Attempt login and get “There were too many requests from your network. Retry later or contact your administrator if this is an error”
- Try logging in using Firefox - works without issue
The output of your Nextcloud log in Admin > Logging:
Logging in via Firefox, I see nothing when clicking in Settings > Administration > Logging. I have, however, captured a nextcloud.log exhibiting the problem and pasted it’s ugliness below
{"reqId":"9hpRPrUz0aCwlRbhzE5p","level":3,"time":"2021-12-27T00:35:20+00:00","remoteAddr":"70.181.192.116","user":"root","app":"index","method":"GET","url":"/settings/user","message":"Could not create folder","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:95.0) Gecko/20100101 Firefox/95.0","version":"23.0.0.10","exception":{"Exception":"OCP\\Files\\NotPermittedException","Message":"Could not create folder","Code":0,"Trace":[{"file":"/var/www/html/lib/private/Files/Node/Root.php","line":386,"function":"newFolder","class":"OC\\Files\\Node\\Folder","type":"->","args":["/root/files"]},{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->","args":["root"]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":65,"function":"call_user_func_array","args":[[{"__class__":"OC\\Files\\Node\\Root"},"getUserFolder"],["root"]]},{"file":"/var/www/html/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["getUserFolder",["root"]]},{"file":"/var/www/html/lib/private/Server.php","line":1606,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->","args":["root"]},{"file":"/var/www/html/custom_apps/mail/lib/AppInfo/Application.php","line":92,"function":"getUserFolder","class":"OC\\Server","type":"->","args":["root"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":160,"function":"OCA\\Mail\\AppInfo\\{closure}","class":"OCA\\Mail\\AppInfo\\Application","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/pimple/pimple/src/Pimple/Container.php","line":118,"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":127,"function":"offsetGet","class":"Pimple\\Container","type":"->","args":["userFolder"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":457,"function":"query","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["userFolder"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":435,"function":"queryNoFallback","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["userFolder"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":87,"function":"query","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["userFolder",true]},{"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":106,"function":"array_map","args":[{"__class__":"Closure"},["*** sensitive parameter replaced ***",{"__class__":"ReflectionParameter","name":"accountService"},{"__class__":"ReflectionParameter","name":"attachmentService"},{"__class__":"ReflectionParameter","name":"mailManager"},{"__class__":"ReflectionParameter","name":"imapClientFactory"},"And 6 more entries, set log level to debug to see all entries"]]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":114,"function":"buildClass","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":[{"__class__":"ReflectionClass","name":"OCA\\Mail\\Service\\MailTransmission"}]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":131,"function":"resolve","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Service\\MailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":463,"function":"query","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Service\\MailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":435,"function":"queryNoFallback","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\Mail\\Service\\MailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":56,"function":"query","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\Mail\\Service\\MailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":182,"function":"get","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Service\\MailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":160,"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/3rdparty/pimple/pimple/src/Pimple/Container.php","line":114,"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":127,"function":"offsetGet","class":"Pimple\\Container","type":"->","args":["OCA\\Mail\\Contracts\\IMailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":457,"function":"query","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Contracts\\IMailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":435,"function":"queryNoFallback","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\Mail\\Contracts\\IMailTransmission"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":87,"function":"query","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\Mail\\Contracts\\IMailTransmission",true]},{"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":106,"function":"array_map","args":[{"__class__":"Closure"},[{"__class__":"ReflectionParameter","name":"config"},{"__class__":"ReflectionParameter","name":"messageMapper"},"*** sensitive parameter replaced ***"]]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":114,"function":"buildClass","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":[{"__class__":"ReflectionClass","name":"OCA\\Mail\\Service\\AntiSpamService"}]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":131,"function":"resolve","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Service\\AntiSpamService"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":463,"function":"query","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Service\\AntiSpamService"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":435,"function":"queryNoFallback","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\Mail\\Service\\AntiSpamService"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":87,"function":"query","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\Mail\\Service\\AntiSpamService",true]},{"function":"OC\\AppFramework\\Utility\\{closure}","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":106,"function":"array_map","args":[{"__class__":"Closure"},[{"__class__":"ReflectionParameter","name":"initialStateService"},{"__class__":"ReflectionParameter","name":"provisioningManager"},"*** sensitive parameter replaced ***"]]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":114,"function":"buildClass","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":[{"__class__":"ReflectionClass","name":"OCA\\Mail\\Settings\\AdminSettings"}]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":131,"function":"resolve","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Settings\\AdminSettings"]},{"file":"/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php","line":463,"function":"query","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Settings\\AdminSettings"]},{"file":"/var/www/html/lib/private/ServerContainer.php","line":145,"function":"queryNoFallback","class":"OC\\AppFramework\\DependencyInjection\\DIContainer","type":"->","args":["OCA\\Mail\\Settings\\AdminSettings"]},{"file":"/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php","line":56,"function":"query","class":"OC\\ServerContainer","type":"->","args":["OCA\\Mail\\Settings\\AdminSettings"]},{"file":"/var/www/html/lib/private/Settings/Manager.php","line":194,"function":"get","class":"OC\\AppFramework\\Utility\\SimpleContainer","type":"->","args":["OCA\\Mail\\Settings\\AdminSettings"]},{"file":"/var/www/html/lib/private/Settings/Manager.php","line":349,"function":"getSettings","class":"OC\\Settings\\Manager","type":"->","args":["admin","overview"]},{"file":"/var/www/html/apps/settings/lib/Controller/CommonSettingsTrait.php","line":82,"function":"getAllowedAdminSettings","class":"OC\\Settings\\Manager","type":"->","args":["overview",{"__class__":"OC\\User\\User"}]},{"file":"/var/www/html/apps/settings/lib/Controller/CommonSettingsTrait.php","line":115,"function":"formatSections","class":"OCA\\Settings\\Controller\\PersonalSettingsController","type":"->","args":[[[{"__class__":"OCA\\Settings\\Sections\\Admin\\Overview"}],[{"__class__":"OCA\\Support\\Settings\\Section"},{"__class__":"OCA\\Settings\\Sections\\Admin\\Server"}],[{"__class__":"OCA\\Settings\\Sections\\Admin\\Sharing"}],[{"__class__":"OCA\\Settings\\Sections\\Admin\\Security"},{"__class__":"OCA\\audioplayer\\Settings\\AdminSection"},{"__class__":"OCA\\Files_External\\Settings\\Section"}],[{"__class__":"OCA\\Theming\\Settings\\Section"}],"And 6 more entries, set log level to debug to see all entries"],"personal-info","admin","personal"]},{"file":"/var/www/html/apps/settings/lib/Controller/CommonSettingsTrait.php","line":67,"function":"formatAdminSections","class":"OCA\\Settings\\Controller\\PersonalSettingsController","type":"->","args":["personal","personal-info"]},{"file":"/var/www/html/apps/settings/lib/Controller/CommonSettingsTrait.php","line":139,"function":"getNavigationParameters","class":"OCA\\Settings\\Controller\\PersonalSettingsController","type":"->","args":["personal","personal-info"]},{"file":"/var/www/html/apps/settings/lib/Controller/PersonalSettingsController.php","line":64,"function":"getIndexResponse","class":"OCA\\Settings\\Controller\\PersonalSettingsController","type":"->","args":["personal","personal-info"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":217,"function":"index","class":"OCA\\Settings\\Controller\\PersonalSettingsController","type":"->","args":["personal-info"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":126,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Settings\\Controller\\PersonalSettingsController"},"index"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Settings\\Controller\\PersonalSettingsController"},"index"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OCA\\Settings\\Controller\\PersonalSettingsController","index",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"section":"personal-info","_route":"settings.PersonalSettings.index"}]},{"file":"/var/www/html/lib/base.php","line":1006,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/settings/user"]},{"file":"/var/www/html/index.php","line":36,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/Files/Node/Folder.php","Line":173,"CustomMessage":"--"}}
{"reqId":"ocMJLEowgYGJxlF2RXaV","level":2,"time":"2021-12-27T00:37:55+00:00","remoteAddr":"2600:8801:d802:ff00:c4c6:81b2:7347:151f","user":"--","app":"core","method":"PROPFIND","url":"/remote.php/dav/files/andrew//","message":"Login failed: 'andrew' (Remote IP: '2600:8801:d802:ff00:c4c6:81b2:7347:151f')","userAgent":"Mozilla/5.0 (Android) Nextcloud-android/3.18.1","version":"23.0.0.10"}
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'htaccess.RewriteBase' => '/',
'memcache.local' => '\\OC\\Memcache\\APCu',
'apps_paths' =>
array (
0 =>
array (
'path' => '/var/www/html/apps',
'url' => '/apps',
'writable' => false,
),
1 =>
array (
'path' => '/var/www/html/custom_apps',
'url' => '/custom_apps',
'writable' => true,
),
),
'instanceid' => 'oc0attz22a89',
'passwordsalt' => 'salt',
'secret' => 'secret',
'trusted_domains' =>
array (
0 => 'cloud.defariahome.com',
1 => 'defaria.synology.me',
2 => 'jupiter',
3 => '192.168.0.251',
),
'default_phone_region' => 'US',
'datadirectory' => '/data',
'dbtype' => 'mysql',
'version' => '23.0.0.10',
'overwrite.cli.url' => 'http://cloud.defariahome.com',
'dbname' => 'nextcloud',
'dbhost' => '192.168.0.251:3306',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'nextcloud',
'dbpassword' => 'nextcloud',
'installed' => true,
'theme' => '',
'loglevel' => 2,
'maintenance' => false,
'mail_smtpmode' => 'smtp',
'mail_smtpsecure' => 'tls',
'mail_sendmailmode' => 'smtp',
'mail_from_address' => 'Andrew',
'mail_domain' => 'DeFaria.com',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtphost' => 'smtp.gmail.com',
'mail_smtpport' => '587',
'mail_smtpauth' => 1,
'mail_smtpname' => 'gmail address',
'mail_smtppassword' => 'smtppassword',
'app_install_overwrite' =>
array (
0 => 'files_external_dropbox',
),
);
Note: I’m running Nextcloud in a container. The output from docker logs nextcloud is huge and I see no way to attach it but it can be obtained via this link - https://earth.defariahome.com/tmp/docker.log.
The output of your Apache/nginx/system log in /var/log/____:
Available upon request