diff --git a/pmocontrol/src/connection_manager_client.rs b/pmocontrol/src/connection_manager_client.rs
new file mode 100644
index 00000000..47662371
--- /dev/null
+++ b/pmocontrol/src/connection_manager_client.rs
@@ -0,0 +1,294 @@
+use anyhow::{anyhow, Result};
+
+use crate::soap_client::{invoke_upnp_action, SoapCallResult};
+use pmoupnp::soap::SoapEnvelope;
+use xmltree::{Element, XMLNode};
+
+#[derive(Debug, Clone)]
+pub struct ConnectionManagerClient {
+    pub control_url: String,
+    pub service_type: String,
+}
+
+#[derive(Debug, Clone)]
+pub struct ProtocolInfo {
+    /// Liste brute des protocolInfo "source" (séparés par virgule dans UPnP)
+    pub source: Vec<String>,
+    /// Liste brute des protocolInfo "sink"
+    pub sink: Vec<String>,
+}
+
+#[derive(Debug, Clone)]
+pub struct ConnectionInfo {
+    pub rcs_id: i32,
+    pub av_transport_id: i32,
+    pub protocol_info: String,
+    pub peer_connection_manager: String,
+    pub peer_connection_id: i32,
+    pub direction: String,
+    pub status: String,
+}
+
+impl ConnectionManagerClient {
+    pub fn new(control_url: String, service_type: String) -> Self {
+        Self {
+            control_url,
+            service_type,
+        }
+    }
+
+    /// GetProtocolInfo
+    pub fn get_protocol_info(&self) -> Result<ProtocolInfo> {
+        let call_result = invoke_upnp_action(
+            &self.control_url,
+            &self.service_type,
+            "GetProtocolInfo",
+            &[],
+        )?;
+
+        ensure_success("GetProtocolInfo", &call_result)?;
+
+        let envelope = call_result
+            .envelope
+            .as_ref()
+            .ok_or_else(|| anyhow!("Missing SOAP envelope in GetProtocolInfo response"))?;
+
+        if let Some(err) = parse_upnp_error(envelope) {
+            return Err(anyhow!(
+                "GetProtocolInfo returned UPnP error {}: {} (HTTP status {})",
+                err.error_code,
+                err.error_description,
+                call_result.status
+            ));
+        }
+
+        let response = find_child_with_suffix(&envelope.body.content, "GetProtocolInfoResponse")
+            .ok_or_else(|| anyhow!("Missing GetProtocolInfoResponse element in SOAP body"))?;
+
+        let source_text = extract_child_text_allow_empty(response, "Source")?;
+        let sink_text = extract_child_text_allow_empty(response, "Sink")?;
+
+        Ok(ProtocolInfo {
+            source: split_list(&source_text),
+            sink: split_list(&sink_text),
+        })
+    }
+
+    /// GetCurrentConnectionIDs
+    pub fn get_current_connection_ids(&self) -> Result<Vec<i32>> {
+        let call_result = invoke_upnp_action(
+            &self.control_url,
+            &self.service_type,
+            "GetCurrentConnectionIDs",
+            &[],
+        )?;
+
+        ensure_success("GetCurrentConnectionIDs", &call_result)?;
+
+        let envelope = call_result
+            .envelope
+            .as_ref()
+            .ok_or_else(|| anyhow!("Missing SOAP envelope in GetCurrentConnectionIDs response"))?;
+
+        if let Some(err) = parse_upnp_error(envelope) {
+            return Err(anyhow!(
+                "GetCurrentConnectionIDs returned UPnP error {}: {} (HTTP status {})",
+                err.error_code,
+                err.error_description,
+                call_result.status
+            ));
+        }
+
+        let response =
+            find_child_with_suffix(&envelope.body.content, "GetCurrentConnectionIDsResponse")
+                .ok_or_else(|| {
+                    anyhow!("Missing GetCurrentConnectionIDsResponse element in SOAP body")
+                })?;
+
+        let ids_text = extract_child_text_allow_empty(response, "ConnectionIDs")?;
+        let trimmed = ids_text.trim();
+
+        if trimmed.is_empty() || trimmed == "0" {
+            return Ok(Vec::new());
+        }
+
+        let mut ids = Vec::new();
+        for part in trimmed.split(',') {
+            let value = part.trim();
+            if value.is_empty() {
+                continue;
+            }
+            let parsed = value
+                .parse::<i32>()
+                .map_err(|_| anyhow!("Invalid ConnectionID value: {}", value))?;
+            ids.push(parsed);
+        }
+
+        Ok(ids)
+    }
+
+    /// GetCurrentConnectionInfo
+    pub fn get_current_connection_info(&self, connection_id: i32) -> Result<ConnectionInfo> {
+        let connection_id_str = connection_id.to_string();
+        let args = [("ConnectionID", connection_id_str.as_str())];
+
+        let call_result = invoke_upnp_action(
+            &self.control_url,
+            &self.service_type,
+            "GetCurrentConnectionInfo",
+            &args,
+        )?;
+
+        ensure_success("GetCurrentConnectionInfo", &call_result)?;
+
+        let envelope = call_result
+            .envelope
+            .as_ref()
+            .ok_or_else(|| anyhow!("Missing SOAP envelope in GetCurrentConnectionInfo response"))?;
+
+        if let Some(err) = parse_upnp_error(envelope) {
+            return Err(anyhow!(
+                "GetCurrentConnectionInfo returned UPnP error {}: {} (HTTP status {})",
+                err.error_code,
+                err.error_description,
+                call_result.status
+            ));
+        }
+
+        let response =
+            find_child_with_suffix(&envelope.body.content, "GetCurrentConnectionInfoResponse")
+                .ok_or_else(|| {
+                    anyhow!("Missing GetCurrentConnectionInfoResponse element in SOAP body")
+                })?;
+
+        let rcs_id = extract_child_text(response, "RcsID")?
+            .parse::<i32>()
+            .map_err(|_| anyhow!("Invalid RcsID value in response"))?;
+
+        let av_transport_id = extract_child_text(response, "AVTransportID")?
+            .parse::<i32>()
+            .map_err(|_| anyhow!("Invalid AVTransportID value in response"))?;
+
+        let protocol_info = extract_child_text_allow_empty(response, "ProtocolInfo")?;
+        let peer_connection_manager =
+            extract_child_text_allow_empty(response, "PeerConnectionManager")?;
+
+        let peer_connection_id = extract_child_text(response, "PeerConnectionID")?
+            .parse::<i32>()
+            .map_err(|_| anyhow!("Invalid PeerConnectionID value in response"))?;
+
+        let direction = extract_child_text(response, "Direction")?;
+        let status = extract_child_text(response, "Status")?;
+
+        Ok(ConnectionInfo {
+            rcs_id,
+            av_transport_id,
+            protocol_info,
+            peer_connection_manager,
+            peer_connection_id,
+            direction,
+            status,
+        })
+    }
+}
+
+fn split_list(value: &str) -> Vec<String> {
+    value
+        .split(',')
+        .filter_map(|part| {
+            let trimmed = part.trim();
+            if trimmed.is_empty() {
+                None
+            } else {
+                Some(trimmed.to_string())
+            }
+        })
+        .collect()
+}
+
+fn ensure_success(action: &str, call_result: &SoapCallResult) -> Result<()> {
+    if call_result.status.is_success() {
+        return Ok(());
+    }
+
+    if let Some(env) = &call_result.envelope {
+        if let Some(err) = parse_upnp_error(env) {
+            return Err(anyhow!(
+                "{action} failed with UPnP error {}: {} (HTTP status {})",
+                err.error_code,
+                err.error_description,
+                call_result.status
+            ));
+        }
+    }
+
+    Err(anyhow!(
+        "{action} failed with HTTP status {} and body: {}",
+        call_result.status,
+        call_result.raw_body
+    ))
+}
+
+#[derive(Debug, Clone)]
+struct UpnpError {
+    pub error_code: u32,
+    pub error_description: String,
+}
+
+fn parse_upnp_error(envelope: &SoapEnvelope) -> Option<UpnpError> {
+    let fault = find_child_with_suffix(&envelope.body.content, "Fault")?;
+    let detail = find_child_with_suffix(fault, "detail")?;
+    let upnp_error = find_child_with_suffix(detail, "UPnPError")?;
+
+    let error_code_elem = upnp_error.children.iter().find_map(|node| match node {
+        XMLNode::Element(elem) if elem.name.ends_with("errorCode") => Some(elem),
+        _ => None,
+    })?;
+
+    let binding = error_code_elem.get_text()?;
+    let error_code_text = binding.trim();
+    let error_code = error_code_text.parse::<u32>().ok()?;
+
+    let error_description = upnp_error
+        .children
+        .iter()
+        .find_map(|node| match node {
+            XMLNode::Element(elem) if elem.name.ends_with("errorDescription") => {
+                elem.get_text().map(|t| t.trim().to_string())
+            }
+            _ => None,
+        })
+        .unwrap_or_else(|| String::from(""));
+
+    Some(UpnpError {
+        error_code,
+        error_description,
+    })
+}
+
+fn find_child_with_suffix<'a>(parent: &'a Element, suffix: &str) -> Option<&'a Element> {
+    parent.children.iter().find_map(|node| match node {
+        XMLNode::Element(elem) if elem.name.ends_with(suffix) => Some(elem),
+        _ => None,
+    })
+}
+
+fn extract_child_text(parent: &Element, suffix: &str) -> Result<String> {
+    let text = extract_child_text_allow_empty(parent, suffix)?;
+    if text.is_empty() {
+        return Err(anyhow!("{suffix} element missing text in response"));
+    }
+    Ok(text)
+}
+
+fn extract_child_text_allow_empty(parent: &Element, suffix: &str) -> Result<String> {
+    let child = find_child_with_suffix(parent, suffix)
+        .ok_or_else(|| anyhow!("Missing {suffix} element in response"))?;
+
+    let text = child
+        .get_text()
+        .map(|t| t.trim().to_string())
+        .unwrap_or_default();
+
+    Ok(text)
+}
diff --git a/pmocontrol/src/lib.rs b/pmocontrol/src/lib.rs
index c401c2bd..a84eb5cb 100644
--- a/pmocontrol/src/lib.rs
+++ b/pmocontrol/src/lib.rs
@@ -1,4 +1,5 @@
 pub mod avtransport_client;
+pub mod connection_manager_client;
 pub mod control_point;
 pub mod discovery;
 pub mod model;
@@ -9,6 +10,7 @@ pub mod registry;
 pub mod soap_client;
 
 pub use avtransport_client::{AvTransportClient, TransportInfo};
+pub use connection_manager_client::{ConnectionInfo, ConnectionManagerClient, ProtocolInfo};
 pub use control_point::ControlPoint;
 pub use rendering_control_client::RenderingControlClient;
 pub use renderer::Renderer;
diff --git a/pmocontrol/src/model.rs b/pmocontrol/src/model.rs
index e6e11a2c..4442cac2 100644
--- a/pmocontrol/src/model.rs
+++ b/pmocontrol/src/model.rs
@@ -45,6 +45,8 @@ pub struct RendererInfo {
     pub avtransport_control_url: Option<String>,
     pub rendering_control_service_type: Option<String>,
     pub rendering_control_control_url: Option<String>,
+    pub connection_manager_service_type: Option<String>,
+    pub connection_manager_control_url: Option<String>,
 }
 
 #[derive(Clone, Debug, Default)]
diff --git a/pmocontrol/src/provider.rs b/pmocontrol/src/provider.rs
index 491b6e29..fb1d49e8 100644
--- a/pmocontrol/src/provider.rs
+++ b/pmocontrol/src/provider.rs
@@ -46,6 +46,10 @@ struct ParsedDeviceDescription {
     // RenderingControl endpoint (if present in serviceList)
     rendering_control_service_type: Option<String>,
     rendering_control_control_url: Option<String>,
+
+    // ConnectionManager endpoint (if present in serviceList)
+    connection_manager_service_type: Option<String>,
+    connection_manager_control_url: Option<String>,
 }
 
 impl ParsedDeviceDescription {
@@ -178,6 +182,20 @@ impl HttpXmlDescriptionProvider {
                                             );
                                         }
                                     }
+
+                                    if lower
+                                        .contains("urn:schemas-upnp-org:service:connectionmanager:")
+                                    {
+                                        if parsed.connection_manager_service_type.is_none() {
+                                            parsed.connection_manager_service_type = Some(st.clone());
+                                            parsed.connection_manager_control_url =
+                                                Some(ctrl.clone());
+                                            debug!(
+                                                "Found ConnectionManager service for {}: type={} controlURL={}",
+                                                endpoint.udn, st, ctrl
+                                            );
+                                        }
+                                    }
                                 }
 
                                 in_service = false;
@@ -282,6 +300,11 @@ impl HttpXmlDescriptionProvider {
                 .rendering_control_control_url
                 .as_ref()
                 .map(|ctrl| resolve_control_url(&endpoint.location, ctrl)),
+            connection_manager_service_type: parsed.connection_manager_service_type.clone(),
+            connection_manager_control_url: parsed
+                .connection_manager_control_url
+                .as_ref()
+                .map(|ctrl| resolve_control_url(&endpoint.location, ctrl)),
         })
     }
 
diff --git a/pmocontrol/src/registry.rs b/pmocontrol/src/registry.rs
index 866012d0..3f49d2c9 100644
--- a/pmocontrol/src/registry.rs
+++ b/pmocontrol/src/registry.rs
@@ -2,6 +2,7 @@ use std::collections::HashMap;
 use std::time::SystemTime;
 
 use crate::avtransport_client::AvTransportClient;
+use crate::connection_manager_client::ConnectionManagerClient;
 use crate::rendering_control_client::RenderingControlClient;
 use crate::model::{MediaServerId, MediaServerInfo, RendererId, RendererInfo};
 
@@ -175,4 +176,20 @@ impl DeviceRegistry {
             service_type.clone(),
         ))
     }
+
+    /// Construct a ConnectionManagerClient for a given renderer id, if possible.
+    pub fn connection_manager_client_for_renderer(
+        &self,
+        id: &RendererId,
+    ) -> Option<ConnectionManagerClient> {
+        let info = self.renderers.get(id)?;
+
+        let service_type = info.connection_manager_service_type.as_ref()?;
+        let control_url = info.connection_manager_control_url.as_ref()?;
+
+        Some(ConnectionManagerClient::new(
+            control_url.clone(),
+            service_type.clone(),
+        ))
+    }
 }
diff --git a/pmocontrol/src/renderer.rs b/pmocontrol/src/renderer.rs
index 9889c1a9..bf3114c4 100644
--- a/pmocontrol/src/renderer.rs
+++ b/pmocontrol/src/renderer.rs
@@ -1,5 +1,8 @@
 use anyhow::{anyhow, Result};
 
+use crate::connection_manager_client::{
+    ConnectionInfo, ConnectionManagerClient, ProtocolInfo,
+};
 use crate::rendering_control_client::RenderingControlClient;
 use crate::{AvTransportClient, DeviceRegistry, RendererId, RendererInfo};
 
@@ -8,6 +11,7 @@ pub struct Renderer {
     pub info: RendererInfo,
     avtransport: Option<AvTransportClient>,
     rendering_control: Option<RenderingControlClient>,
+    connection_manager: Option<ConnectionManagerClient>,
 }
 
 impl Renderer {
@@ -27,6 +31,10 @@ impl Renderer {
         self.rendering_control.is_some()
     }
 
+    pub fn has_connection_manager(&self) -> bool {
+        self.connection_manager.is_some()
+    }
+
     pub fn avtransport(&self) -> Result<&AvTransportClient> {
         self.avtransport
             .as_ref()
@@ -39,6 +47,12 @@ impl Renderer {
             .ok_or_else(|| anyhow!("Renderer has no RenderingControl service"))
     }
 
+    pub fn connection_manager(&self) -> Result<&ConnectionManagerClient> {
+        self.connection_manager
+            .as_ref()
+            .ok_or_else(|| anyhow!("Renderer has no ConnectionManager service"))
+    }
+
     pub fn play_uri(&self, uri: &str, meta: &str) -> Result<()> {
         let avt = self.avtransport()?;
         avt.set_av_transport_uri(uri, meta)?;
@@ -80,13 +94,30 @@ impl Renderer {
         rc.set_mute(0, "Master", mute)
     }
 
+    pub fn protocol_info(&self) -> Result<ProtocolInfo> {
+        let cm = self.connection_manager()?;
+        cm.get_protocol_info()
+    }
+
+    pub fn connection_ids(&self) -> Result<Vec<i32>> {
+        let cm = self.connection_manager()?;
+        cm.get_current_connection_ids()
+    }
+
+    pub fn connection_info(&self, connection_id: i32) -> Result<ConnectionInfo> {
+        let cm = self.connection_manager()?;
+        cm.get_current_connection_info(connection_id)
+    }
+
     pub fn from_registry(info: RendererInfo, registry: &DeviceRegistry) -> Self {
         let avtransport = registry.avtransport_client_for_renderer(&info.id);
         let rendering_control = registry.rendering_control_client_for_renderer(&info.id);
+        let connection_manager = registry.connection_manager_client_for_renderer(&info.id);
         Self {
             info,
             avtransport,
             rendering_control,
+            connection_manager,
         }
     }
 }
@@ -121,6 +152,8 @@ mod tests {
                 .then(|| "http://127.0.0.1/avtransport".into()),
             rendering_control_service_type: None,
             rendering_control_control_url: None,
+            connection_manager_service_type: None,
+            connection_manager_control_url: None,
         }
     }