diff --git a/README.md b/README.md
index af80fdb..bfc7c01 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ In Hermes Dashboard, open **Plugins**, choose **Install from repository**, enter
 The plugin supports both deployment types:
 
 - **Physical/Linux Hermes:** Ollama defaults to `http://localhost:11434`. If Ollama is missing, the prerequisite installer can install it on a root-run host.
-- **Docker Hermes:** Ollama should normally run as a separate service or on the Docker host. The plugin does not install Ollama inside the Hermes container. Set `OLLAMA_HOST` to the reachable Ollama base URL, without `/v1`, for example `http://ollama:11434` for a Compose service or `http://host.docker.internal:11434` for a host service.
+- **Docker Hermes:** Ollama should normally run as a separate service or on the Docker host. The plugin does not install Ollama inside the Hermes container. It first probes `http://ollama:11434` and then `http://host.docker.internal:11434`. Set `OLLAMA_HOST` to the reachable Ollama base URL, without `/v1`, for example `http://ollama:11434`, `http://host.docker.internal:11434`, or the host address shown by your installation, such as `http://<host-ip>:11434`.
 
 For host access on Linux Docker, add this to the Hermes service when needed:
 
diff --git a/dashboard/manifest.json b/dashboard/manifest.json
index d6396f5..c5a9759 100644
--- a/dashboard/manifest.json
+++ b/dashboard/manifest.json
@@ -3,7 +3,7 @@
   "label": "Ollama Models",
   "description": "Inspect, manage, and chat with local Ollama models, including shared persistent conversations, performance metrics, images, PDFs, URLs, and live memory telemetry.",
   "icon": "Cpu",
-  "version": "1.5.3",
+  "version": "1.5.4",
   "tab": {"path": "/ollama-manager", "position": "after:models"},
   "entry": "dist/index.js",
   "css": "dist/style.css",
diff --git a/dashboard/plugin_api.py b/dashboard/plugin_api.py
index d45318a..1c79524 100644
--- a/dashboard/plugin_api.py
+++ b/dashboard/plugin_api.py
@@ -44,6 +44,20 @@ def _ollama_base_url() -> str:
     return "http://ollama:11434" if _running_in_container() else "http://localhost:11434"
 
 
+def _discover_ollama_endpoint() -> None:
+    global LOCAL_OLLAMA
+    if os.environ.get("OLLAMA_HOST", "").strip() or not _running_in_container():
+        return
+    candidates = ("http://ollama:11434", "http://host.docker.internal:11434")
+    for candidate in candidates:
+        try:
+            _json_request(candidate + "/api/version", timeout=2)
+        except (HTTPError, URLError, OSError, ValueError):
+            continue
+        LOCAL_OLLAMA = candidate
+        return
+
+
 LOCAL_OLLAMA = _ollama_base_url()
 REMOTE_OLLAMA = "https://ollama.com"
 CATALOG_FILE = "catalog.json"
@@ -274,6 +288,7 @@ def _valid_name(name: str) -> str:
 
 
 def _local_tags() -> list[dict[str, Any]]:
+    _discover_ollama_endpoint()
     try:
         payload = _json_request(LOCAL_OLLAMA + "/api/tags", timeout=15)
         models = payload.get("models", [])
diff --git a/plugin.yaml b/plugin.yaml
index 62c449a..dd8a106 100644
--- a/plugin.yaml
+++ b/plugin.yaml
@@ -1,5 +1,5 @@
 name: ollama-manager
-version: 1.5.3
+version: 1.5.4
 description: Native dashboard manager and chat interface for local Ollama models, attachments, URLs, shared persistent conversations, performance metrics, and live runtime telemetry.
 auto_install_dependencies: true
 python_dependencies:
diff --git a/scripts/install_ollama.sh b/scripts/install_ollama.sh
index e01f35d..6495f71 100755
--- a/scripts/install_ollama.sh
+++ b/scripts/install_ollama.sh
@@ -14,19 +14,24 @@ is_container() {
   [[ -f /run/.containerenv ]]
 }
 
-ollama_endpoint() {
+ollama_endpoints() {
   if [[ -n "${OLLAMA_HOST:-}" ]]; then
-    printf '%s' "${OLLAMA_HOST%/}"
+    printf '%s\n' "${OLLAMA_HOST%/}"
   elif is_container; then
-    printf '%s' 'http://ollama:11434'
+    printf '%s\n' 'http://ollama:11434' 'http://host.docker.internal:11434'
   else
-    printf '%s' 'http://localhost:11434'
+    printf '%s\n' 'http://localhost:11434'
   fi
 }
 
 check_endpoint() {
   command -v curl >/dev/null 2>&1 || return 1
-  curl --fail --silent --show-error --max-time 5 "$(ollama_endpoint)/api/version" >/dev/null
+  while IFS= read -r endpoint; do
+    if curl --fail --silent --show-error --max-time 5 "${endpoint}/api/version" >/dev/null; then
+      return 0
+    fi
+  done < <(ollama_endpoints)
+  return 1
 }
 
 if [[ "${1:-}" == "--check" ]]; then