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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, 29.0.5): 29.0.6.1
Operating system and version (eg, Ubuntu 24.04): Linux 6.1.0-0.deb11.21-amd64 x86_64 (OpenMediaVault 6.9.16-1)
Apache or nginx version (eg, Apache 2.4.25): nginx, can't find the version
PHP version (eg, 8.3): 8.3.10
The issue you are facing:
On Thursday, I switched to a new ISP (AT&T Fiber) which required the use of their own router (the BGW320). The new router would not allow my Nextcloud server to have the same static IP address. Ever since the ISP change/new router/new static IP, my server has only allowed intermittent connection.
I have 3 methods of accessing Nextcloud:
- Phone using the Android Nextcloud app - this has not been able to connect to the server at all.
- Desktop using the Windows Nextcloud app - this syncs ~50% of the time, and the rest of the time cannot access the server (“Host not found”, etc).
- Browser via duckdns - this also works ~50% of the time, and the rest of the time cannot access the server.
Note that the desktop & browser issues do not seem to coincide - for example at the moment my Windows app cannot connect to the Nextcloud server, but I’m accessing it via browser with no problem.
I have updated my config.php with the appropriate new static IP.
I have also set up the same port forwarding in my new router as my old router.
The int
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it: N/A
The output of your Nextcloud log in Admin > Logging:
Error PHP
Allowed memory size of 536870912 bytes exhausted (tried to allocate 12288 bytes) at /config/www/nextcloud/apps/logreader/lib/Log/LogIterator.php#89
# Several similar errors are the only entries since the new router/ISP switch
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'datadirectory' => '/data',
'instanceid' => 'XXXX',
'passwordsalt' => 'XXXX',
'secret' => 'XXXX',
'trusted_domains' =>
array (
0 => '192.168.1.202:450',
1 => 'nextcloud.XXXXX.duckdns.org',
),
'dbtype' => 'mysql',
'version' => '29.0.6.1',
'dbname' => 'nextcloud',
'dbhost' => 'mariadb',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'XXXX',
'dbpassword' => 'XXXX',
'installed' => true,
'memcache.local' => '\\OC\\Memcache\\APCu',
'filelocking.enabled' => 'true',
'memcache.locking' => '\\OC\\Memcache\\APCu',
'overwritehost' => 'nextcloud.XXXXX.duckdns.org',
'overwriteprotocol' => 'https',
'overwrite.cli.url' => 'https://nextcloud.XXXXX.duckdns.org',
'loglevel' => 2,
'maintenance' => false,
'upgrade.disable-web' => true,
);
The output of your Apache/nginx/system log in /var/log/____:
cat error.log
2024/09/10 11:55:34 [error] 435#435: *861 upstream timed out (110: Operation timed out) while reading response header from upstream, client: 192.168.1.254, server: _, request: "GET /settings/ajax/checksetup HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "nextcloud.XXXX.duckdns.org", referrer: "https://nextcloud.XXXXX.duckdns.org/settings/admin/overview"
2024/09/10 11:57:08 [error] 437#437: *893 FastCGI sent in stderr: "PHP message: PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 20480 bytes) in /config/www/nextcloud/apps/logreader/lib/Log/LogIterator.php on line 68" while reading response header from upstream, client: 192.168.1.254, server: _, request: "GET /apps/logreader/api/poll?lastReqId=ZVAu6nRBds0oDEZY2sg6 HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "nextcloud.XXXXX.duckdns.org", referrer: "https://nextcloud.XXXXX.duckdns.org/settings/admin/logging"
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
See the PHP memory size errors above.