diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0011dac45..3304d3a93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,6 +53,18 @@ devture_traefik_config_entrypoint_web_secure_http3_enabled: false
 matrix_playbook_public_matrix_federation_api_traefik_entrypoint_config_http3_enabled: false
 ```
 
+If you are using [your own webserver](./docs/configuring-playbook-own-webserver.md) (in front of Traefik), port binding on UDP port `8448` by default due to HTTP/3 is either unnecessary or [may get in the way](https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3402). If it does, you can disable it:
+
+```yml
+# Disable HTTP/3 for the federation entrypoint.
+# If you'd like HTTP/3, consider configuring it for your other reverse-proxy.
+#
+# Disabling this also sets `matrix_playbook_public_matrix_federation_api_traefik_entrypoint_host_bind_port_udp` to an empty value.
+# If you'd like to keep HTTP/3 enabled here (for whatever reason), you may wish to explicitly
+# set `matrix_playbook_public_matrix_federation_api_traefik_entrypoint_host_bind_port_udp` to something like '127.0.0.1:8449'.
+matrix_playbook_public_matrix_federation_api_traefik_entrypoint_config_http3_enabled: false
+```
+
 
 # 2024-07-01
 
diff --git a/docs/configuring-playbook-own-webserver.md b/docs/configuring-playbook-own-webserver.md
index 702103670..399d8a9f1 100644
--- a/docs/configuring-playbook-own-webserver.md
+++ b/docs/configuring-playbook-own-webserver.md
@@ -171,6 +171,14 @@ devture_traefik_config_entrypoint_web_forwardedHeaders_insecure: true
 # - adjusting `matrix_playbook_public_matrix_federation_api_traefik_entrypoint_config_custom` (below) - removing `insecure: true` and enabling/configuring `trustedIPs`
 matrix_playbook_public_matrix_federation_api_traefik_entrypoint_host_bind_port: '127.0.0.1:8449'
 
+# Disable HTTP/3 for the federation entrypoint.
+# If you'd like HTTP/3, consider configuring it for your other reverse-proxy.
+#
+# Disabling this also sets `matrix_playbook_public_matrix_federation_api_traefik_entrypoint_host_bind_port_udp` to an empty value.
+# If you'd like to keep HTTP/3 enabled here (for whatever reason), you may wish to explicitly
+# set `matrix_playbook_public_matrix_federation_api_traefik_entrypoint_host_bind_port_udp` to something like '127.0.0.1:8449'.
+matrix_playbook_public_matrix_federation_api_traefik_entrypoint_config_http3_enabled: false
+
 # Depending on the value of `matrix_playbook_public_matrix_federation_api_traefik_entrypoint_host_bind_port` above,
 # this may need to be reconfigured. See the comments above.
 matrix_playbook_public_matrix_federation_api_traefik_entrypoint_config_custom: