diff --git a/bioimageio_colab/register_sam_service.py b/bioimageio_colab/register_sam_service.py
index cf2d12f..ecf977d 100644
--- a/bioimageio_colab/register_sam_service.py
+++ b/bioimageio_colab/register_sam_service.py
@@ -204,33 +204,11 @@ async def register_service(args: dict) -> None:
     if not workspace_token:
         raise ValueError("Workspace token is required to connect to the Hypha server.")
 
-    # Wait until the client ID is available
-    test_client = await connect_to_server(
-        {
-            "server_url": args.server_url,
-            "workspace": args.workspace_name,
-            "token": workspace_token,
-        }
-    )
-    colab_client_id = f"{args.workspace_name}/{args.client_id}"
-    n_failed_attempts = 0
-    waiting_for_client = True
-    while waiting_for_client:
-        all_clients = await test_client.list_clients()
-        waiting_for_client = any([colab_client_id == client["id"] for client in all_clients])
-        if waiting_for_client:
-            n_failed_attempts += 1
-            logger.info(
-                f"Waiting for client ID '{colab_client_id}' to be available... (attempt {n_failed_attempts})"
-            )
-            await asyncio.sleep(1)
-
-    # Connect to the workspace
+    # Connect to the workspace (with random client ID)
     colab_client = await connect_to_server(
         {
             "server_url": args.server_url,
             "workspace": args.workspace_name,
-            "client_id": args.client_id,
             "name": "SAM Server",
             "token": workspace_token,
         }
@@ -266,14 +244,13 @@ async def register_service(args: dict) -> None:
             # - True if the embedding was removed successfully
             # - False if the user was not found in the cache
             "clear_cache": partial(clear_cache, embedding_cache),
-        },
-        {"overwrite": True},
+        }
     )
     sid = service_info["id"]
-    assert sid == f"{args.workspace_name}/{args.client_id}:{args.service_id}"
+    client_service = sid.split("/")[1]
     logger.info(f"Registered service with ID: {sid}")
     logger.info(
-        f"Test the service here: {args.server_url}/{args.workspace_name}/services/{args.client_id}:{args.service_id}/hello"
+        f"Test the service here: {args.server_url}/{args.workspace_name}/services/{client_service}/hello"
     )
 
 
@@ -291,14 +268,9 @@ async def register_service(args: dict) -> None:
     parser.add_argument(
         "--workspace_name", default="bioimageio-colab", help="Name of the workspace"
     )
-    parser.add_argument(
-        "--client_id",
-        default="kubernetes",
-        help="Client ID for registering the service",
-    )
     parser.add_argument(
         "--service_id",
-        default="sam",
+        default="microsam",
         help="Service ID for registering the service",
     )
     parser.add_argument(
diff --git a/docker-compose.yml b/docker-compose.yml
index 90879cb..c3c8a18 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,6 +11,5 @@ services:
     command: [
       "--server_url=https://hypha.aicell.io",
       "--workspace_name=bioimageio-colab",
-      "--client_id=kubernetes",
       "--service_id=sam",
     ]
diff --git a/test/test_model_service.py b/test/test_model_service.py
index d1decae..c64a867 100644
--- a/test/test_model_service.py
+++ b/test/test_model_service.py
@@ -5,12 +5,11 @@
 
 SERVER_URL = "https://hypha.aicell.io"
 WORKSPACE_NAME = "bioimageio-colab"
-CLIENT_ID = "kubernetes"
 SERVICE_ID = "sam"
 
 
 def test_service_available():
-    service_url = f"{SERVER_URL}/{WORKSPACE_NAME}/services/{CLIENT_ID}:{SERVICE_ID}/hello"
+    service_url = f"{SERVER_URL}/{WORKSPACE_NAME}/services/*:{SERVICE_ID}/hello"
     response = requests.get(service_url)
     assert response.status_code == 200
     assert response.json() == "Welcome to the Interactive Segmentation service!"
@@ -19,8 +18,8 @@ def test_get_service():
     client = connect_to_server({"server_url": SERVER_URL, "method_timeout": 5})
     assert client
 
-    sid = f"{WORKSPACE_NAME}/{CLIENT_ID}:{SERVICE_ID}"
-    segment_svc = client.get_service(sid)
+    sid = f"{WORKSPACE_NAME}/*:{SERVICE_ID}"
+    segment_svc = client.get_service(sid, {"mode": "random"})
     assert segment_svc.id == sid
     assert segment_svc.config.workspace == WORKSPACE_NAME
     assert segment_svc.get("segment")