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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 
Some useful links to gather information about your Nextcloud Talk installation:
Information about Signaling server: /index.php/index.php/settings/admin/talk#signaling_server
Information about TURN server: /index.php/settings/admin/talk#turn_server
Information about STUN server: /index.php/settings/admin/talk#stun_server
Nextcloud version (eg, 24.0.1): 32.0.3
Talk Server version (eg, 14.0.2): 22.0.7
Custom Signaling server configured: yes
Custom TURN server configured: yes
Custom STUN server configured: yes
In case the web version of Nextcloud Talk is involved:
Operating system (eg, Windows/Ubuntu/…): Ubuntu
Browser name and version (eg, Chrome v101): Waterfox 6.6.7
The issue you are facing: signaling.service does not start and I don’t understand how to troubleshoot the error.
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
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Followed this guide to install Nextcloud How to Install and Configure Nextcloud on Ubuntu 24.04 - Linux Genie
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Followed this guide to enable SSL Installation on Linux — Nextcloud latest Administration Manual latest documentation and Certbot Instructions and Certificates for localhost - Let's Encrypt
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Then this guide to install High Performance Backend stuff: https://najigram.com/2024/01/setup-signaling-server-high-performance-backend-for-nextcloud-talk/
- Set up Go (2.0.4)
- Set up NATS server from instructions
- Set up Janus from instructions
- Set up coTURN from instructions
- Set up Signaling server from instructions
- cURL returns a 404 error (I use the below example trying to access the URL from a local network computer connecting to the servers local ip address, but the exact same error message shows up when I use my DDNS domain, which looks something like myname.tplinkdns.com.
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curl -vvv https://local-ip-address/standalone-signaling/api/v2/welcome * Trying local-ip-address:443... * Connected to local-ip-address (local-ip-address) port 443 * ALPN: curl offers h2,http/1.1 * TLSv1.3 (OUT), TLS handshake, Client hello (1): * CAfile: /etc/ssl/certs/localcons.crt * CApath: /etc/ssl/certs * TLSv1.3 (IN), TLS handshake, Server hello (2): * TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8): * TLSv1.3 (IN), TLS handshake, Certificate (11): * TLSv1.3 (IN), TLS handshake, CERT verify (15): * TLSv1.3 (IN), TLS handshake, Finished (20): * TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1): * TLSv1.3 (OUT), TLS handshake, Finished (20): * SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384 / X25519 / RSASSA-PSS * ALPN: server accepted http/1.1 * Server certificate: * subject: CN=local-ip-address * start date: Jan 3 10:26:31 2026 GMT * expire date: Feb 2 10:26:31 2026 GMT * subjectAltName: host "local-ip-address" matched cert's IP address! * issuer: CN=local-ip-address * SSL certificate verify ok. * Certificate level 0: Public key type RSA (2048/112 Bits/secBits), signed using sha256WithRSAEncryption * using HTTP/1.x > GET /standalone-signaling/api/v2/welcome HTTP/1.1 > Host: local-ip-address > User-Agent: curl/8.5.0 > Accept: */* > * TLSv1.3 (IN), TLS handshake, Newsession Ticket (4): * TLSv1.3 (IN), TLS handshake, Newsession Ticket (4): * old SSL session ID is stale, removing < HTTP/1.1 404 Not Found < Date: Sun, 11 Jan 2026 08:26:08 GMT < Server: Apache/2.4.58 (Ubuntu) < X-Content-Type-Options: nosniff < X-Frame-Options: SAMEORIGIN < X-Permitted-Cross-Domain-Policies: none < X-Robots-Tag: noindex, nofollow < Referrer-Policy: no-referrer < Upgrade: h2,h2c < Connection: Upgrade < Set-Cookie: ocsyf3dow3gi=84g19gcmpisnmfvi3vjb9jev51; path=/; secure; HttpOnly; SameSite=Lax < Set-Cookie: oc_sessionPassphrase=unWeNG6I%2Bw5yI8Tn1Y7hbwVe4prKAFdlWBc1XgdWshpQVVAQD0%2FVPYassgF%2BIs6FCvC%2FDKaAF2i8f8Z8bijZjA41Ba80SfCJCHWF0jgiS%2FdnmIj1S6C4pYPRiSxHZrqc; path=/; secure; HttpOnly; SameSite=Lax < Set-Cookie: ocsyf3dow3gi=84g19gcmpisnmfvi3vjb9jev51; path=/; secure; HttpOnly; SameSite=Lax < Content-Security-Policy: default-src 'none';base-uri 'none';manifest-src 'self';script-src 'nonce-+c2MQ5ySpxDj6Gvq04aas9mzYzLrbm6O3mXb0yMBvKw=' blob: 'wasm-unsafe-eval';script-src-elem 'strict-dynamic' 'nonce-+c2MQ5ySpxDj6Gvq04aas9mzYzLrbm6O3mXb0yMBvKw=' blob: 'wasm-unsafe-eval';style-src 'self' 'unsafe-inline';img-src 'self' data: blob: https://*.tile.openstreetmap.org;font-src 'self' data:;connect-src 'self' blob: stun.nextcloud.com:443;media-src 'self' blob:;frame-src 'self' nc:;child-src blob: 'self';frame-ancestors 'self';worker-src blob: 'self';form-action 'self' < Set-Cookie: __Host-nc_sameSiteCookielax=true; path=/; httponly;secure; expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=lax < Set-Cookie: __Host-nc_sameSiteCookiestrict=true; path=/; httponly;secure; expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=strict < Set-Cookie: ocsyf3dow3gi=84g19gcmpisnmfvi3vjb9jev51; path=/; secure; HttpOnly; SameSite=Lax < X-Request-Id: BvBtF7sNbpKDWR1YlAZX < Cache-Control: no-cache, no-store, must-revalidate < Feature-Policy: autoplay 'self';camera 'self';fullscreen 'self';geolocation 'none';microphone 'self';payment 'none' < Content-Length: 4948 < Content-Type: text/html; charset=UTF-8 < <!DOCTYPE html> <html class="ng-csp" data-placeholder-focus="false" lang="en" data-locale="en" translate="no" > <head data-requesttoken=""> <meta charset="utf-8"> <title> Nextcloud </title> <meta name="csp-nonce" nonce="+c2MQ5ySpxDj6Gvq04aas9mzYzLrbm6O3mXb0yMBvKw="> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"> <meta name="apple-itunes-app" content="app-id=1125420102"> <meta name="theme-color" content="#00679e"> <link rel="icon" href="/core/img/favicon.ico"> <link rel="apple-touch-icon" href="/core/img/favicon-touch.png"> <link rel="mask-icon" sizes="any" href="/core/img/favicon-mask.svg" color="#00679e"> <link rel="manifest" href="/core/img/manifest.json" crossorigin="use-credentials"> <link rel="stylesheet" href="/core/css/server.css?v=9e0555a3-0"> <link rel="stylesheet" href="/apps/theming/css/default.css?v=beb4a7bc-0"> <link rel="stylesheet" href="/core/css/guest.css?v=9e0555a3-0"> <script nonce="+c2MQ5ySpxDj6Gvq04aas9mzYzLrbm6O3mXb0yMBvKw=" defer src="/dist/core-common.js?v=9e0555a3-0"></script> <script nonce="+c2MQ5ySpxDj6Gvq04aas9mzYzLrbm6O3mXb0yMBvKw=" defer src="/dist/core-main.js?v=9e0555a3-0"></script> <script nonce="+c2MQ5ySpxDj6Gvq04aas9mzYzLrbm6O3mXb0yMBvKw=" defer src="/apps/theming/js/theming.js?v=9e0555a3-0"></script> <script nonce="+c2MQ5ySpxDj6Gvq04aas9mzYzLrbm6O3mXb0yMBvKw=" defer src="/dist/files_sharing-main.js?v=9e0555a3-0"></script> <link rel="stylesheet" media="" href="/index.php/apps/theming/theme/default.css?plain=1&v=817e1db3" class="theme"/><link rel="stylesheet" media="(prefers-color-scheme: light)" href="/index.php/apps/theming/theme/light.css?plain=1&v=817e1db3" class="theme"/><link rel="stylesheet" media="(prefers-color-scheme: dark)" href="/index.php/apps/theming/theme/dark.css?plain=1&v=817e1db3" class="theme"/><link rel="stylesheet" media="(prefers-contrast: more)" href="/index.php/apps/theming/theme/light-highcontrast.css?plain=1&v=817e1db3" class="theme"/><link rel="stylesheet" media="(prefers-color-scheme: dark) and (prefers-contrast: more)" href="/index.php/apps/theming/theme/dark-highcontrast.css?plain=1&v=817e1db3" class="theme"/><link rel="stylesheet" media="" href="/index.php/apps/theming/theme/light.css?plain=0&v=817e1db3" class="theme"/><link rel="stylesheet" media="" href="/index.php/apps/theming/theme/dark.css?plain=0&v=817e1db3" class="theme"/><link rel="stylesheet" media="" href="/index.php/apps/theming/theme/light-highcontrast.css?plain=0&v=817e1db3" class="theme"/><link rel="stylesheet" media="" href="/index.php/apps/theming/theme/dark-highcontrast.css?plain=0&v=817e1db3" class="theme"/><link rel="stylesheet" media="" href="/index.php/apps/theming/theme/opendyslexic.css?plain=0&v=817e1db3" class="theme"/><meta name="color-scheme" content="light dark"/> </head> <body id="body-login" data-themes=""> <noscript> <div id="nojavascript"> <div> This application requires JavaScript for correct operation. Please <a href="https://www.enable-javascript.com/" target="_blank" rel="noreferrer noopener">enable JavaScript</a> and reload the page. </div> </div> </noscript> <div id="initial-state-container" style="display: none;"> <input type="hidden" id="initial-state-richdocuments-startPresentation" value="ZmFsc2U="> <input type="hidden" id="initial-state-core-versionHash" value="IjllMDU1NWEzIg=="> <input type="hidden" id="initial-state-theming-data" value="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"> <input type="hidden" id="initial-state-comments-maxAutoCompleteResults" value="MTA="> </div> <div class="wrapper"> <div class="v-align"> <header> <div id="header" class="header-guest"> <div class="logo"></div> </div> </header> <div> <h1 class="hidden-visually"> Nextcloud </h1> <div class="body-login-container update"> <div class="icon-big icon-search"></div> <h2>Page not found</h2> <p class="infogroup">The page could not be found on the server or you may not be allowed to view it.</p> <p><a class="button primary" href="/index.php"> Back to Nextcloud </a></p> </div> </div> </div> </div> <footer class="guest-box "> <p class="info"> <a href="https://nextcloud.com" target="_blank" rel="noreferrer noopener" class="entity-name">Nextcloud</a> – a safe home for all your data </p> </footer> </body> </html> * Connection #0 to host local-ip-address left intact
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- From what I think is because signaling.service fails
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× signaling.service - Nextcloud Talk signaling server Loaded: loaded (/etc/systemd/system/signaling.service; enabled; preset: enabled) Active: failed (Result: exit-code) since Sun 2026-01-11 09:44:11 CET; 1min 38s ago Duration: 42ms Process: 1550 ExecStart=/usr/bin/signaling --config /etc/signaling/server.conf (code=exited, status=203/EXEC) Main PID: 1550 (code=exited, status=203/EXEC) CPU: 38ms -
Jan 11 09:44:11 lenoserv systemd[1]: signaling.service: Scheduled restart job, restart counter is at 5. Jan 11 09:44:11 lenoserv systemd[1]: signaling.service: Start request repeated too quickly. Jan 11 09:44:11 lenoserv systemd[1]: signaling.service: Failed with result ‘exit-code’. Jan 11 09:44:11 lenoserv systemd[1]: Failed to start signaling.service - Nextcloud Talk signaling server.
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- cURL returns a 404 error (I use the below example trying to access the URL from a local network computer connecting to the servers local ip address, but the exact same error message shows up when I use my DDNS domain, which looks something like myname.tplinkdns.com.
The output of your Nextcloud log in Admin > Logging or errors in nextcloud.log in /var/www/:
Nothing from today when I am setting it up.
The output of your Apache/nginx/system log in /var/log/apache2/error.log:
[Sun Jan 11 09:26:06.395877 2026] [mpm_prefork:notice] [pid 7933] AH00170: caught SIGWINCH, shutting down gracefully
[Sun Jan 11 09:26:06.499130 2026] [ssl:warn] [pid 8352] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Sun Jan 11 09:26:06.514574 2026] [ssl:warn] [pid 8353] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Sun Jan 11 09:26:06.515992 2026] [http2:warn] [pid 8353] AH10034: The mpm module (prefork.c) is not supported by mod_http2. The mpm determines how things are processed in your server. HTTP/2 has more demands in this regard and the currently selected mpm will just not do. This is an advisory warning. Your server will continue to work, but the HTTP/2 protocol will be inactive.
[Sun Jan 11 09:26:06.549675 2026] [mpm_prefork:notice] [pid 8353] AH00163: Apache/2.4.58 (Ubuntu) OpenSSL/3.0.13 configured -- resuming normal operations
[Sun Jan 11 09:26:06.549719 2026] [core:notice] [pid 8353] AH00094: Command line: '/usr/sbin/apache2'
[Sun Jan 11 09:26:31.535687 2026] [mpm_prefork:notice] [pid 8353] AH00170: caught SIGWINCH, shutting down gracefully
[Sun Jan 11 09:26:31.616306 2026] [ssl:warn] [pid 8387] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Sun Jan 11 09:26:31.632159 2026] [ssl:warn] [pid 8388] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Sun Jan 11 09:26:31.633514 2026] [http2:warn] [pid 8388] AH10034: The mpm module (prefork.c) is not supported by mod_http2. The mpm determines how things are processed in your server. HTTP/2 has more demands in this regard and the currently selected mpm will just not do. This is an advisory warning. Your server will continue to work, but the HTTP/2 protocol will be inactive.
[Sun Jan 11 09:26:31.666689 2026] [mpm_prefork:notice] [pid 8388] AH00163: Apache/2.4.58 (Ubuntu) OpenSSL/3.0.13 configured -- resuming normal operations
[Sun Jan 11 09:26:31.666725 2026] [core:notice] [pid 8388] AH00094: Command line: '/usr/sbin/apache2'
[Sun Jan 11 09:43:52.605064 2026] [mpm_prefork:notice] [pid 8388] AH00170: caught SIGWINCH, shutting down gracefully
[Sun Jan 11 09:44:08.578840 2026] [ssl:warn] [pid 879] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Sun Jan 11 09:44:08.616832 2026] [ssl:warn] [pid 958] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Sun Jan 11 09:44:08.619611 2026] [http2:warn] [pid 958] AH10034: The mpm module (prefork.c) is not supported by mod_http2. The mpm determines how things are processed in your server. HTTP/2 has more demands in this regard and the currently selected mpm will just not do. This is an advisory warning. Your server will continue to work, but the HTTP/2 protocol will be inactive.
[Sun Jan 11 09:44:08.916843 2026] [mpm_prefork:notice] [pid 958] AH00163: Apache/2.4.58 (Ubuntu) OpenSSL/3.0.13 configured -- resuming normal operations
[Sun Jan 11 09:44:08.917615 2026] [core:notice] [pid 958] AH00094: Command line: '/usr/sbin/apache2'
[Sun Jan 11 10:03:44.406103 2026] [access_compat:error] [pid 1016] [client 192.168.0.116:54656] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ncdata
[Sun Jan 11 10:03:44.642867 2026] [access_compat:error] [pid 1863] [client 31.208.121.234:43654] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ncdata
[Sun Jan 11 10:03:44.764714 2026] [access_compat:error] [pid 1016] [client 192.168.0.116:54656] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ncdata
Your browser log if relevant (javascript console log, network log, etc.):
?
There are two parts I suspect being a problem, according to the HPB guide, it uses a subdomain for the talk, turn, and stun servers. I don’t have that, I have a DDNS where I (maybe obviously) only have access to myname.tplinkdns.com. So I use this domain for all settings facing the internet.
Another problem I had during install was that I was executing following commands:
cd /opt
wget https://github.com/strukturag/nextcloud-spreed-signaling/archive/refs/tags/v2.0.4.zip
unzip v2.0.4.zip
rm v2.0.4.zip
cd nextcloud-spreed-signaling-2.0.4
make build
# cp bin/signaling /usr/bin/
# gave me an error, adding -r worked
cp -r bin/signaling /usr/bin/
mkdir /etc/signaling
cp server.conf.in /etc/signaling/server.conf
...
Then I did something outside of the guide that might cause issues when configuring the server.conf for signaling. In the [https] section there were two lines pointing to nginx certificates, since I run Apache I commented them out (the guide didn’t say anything about doing that, and the guide is written for Apache users).
So, I need help with understanding how to troubleshoot -or of course if someone knows how to fix- the signaling.service/404 problem, and once solved what the settings in Nextcloud HPB should be for the turn, stun, and HPB server in my case. Thank you! And apologies if I have forgotten to provide some info that’s needed or not formatted according to custom.
)