diff --git a/monkey/infection_monkey/island_api_client/http_island_api_client.py b/monkey/infection_monkey/island_api_client/http_island_api_client.py
index 17e2f9284..f277ad9c0 100644
--- a/monkey/infection_monkey/island_api_client/http_island_api_client.py
+++ b/monkey/infection_monkey/island_api_client/http_island_api_client.py
@@ -135,6 +135,7 @@ class HTTPIslandAPIClient(IIslandAPIClient):
 
         response.raise_for_status()
 
+    @handle_island_errors
     def register_agent(self, agent_registration_data: AgentRegistrationData):
         url = f"https://{agent_registration_data.cc_server}/api/agents"
         response = requests.post(  # noqa: DUO123
diff --git a/monkey/infection_monkey/island_api_client/i_island_api_client.py b/monkey/infection_monkey/island_api_client/i_island_api_client.py
index 409a1b265..2f5edc8f4 100644
--- a/monkey/infection_monkey/island_api_client/i_island_api_client.py
+++ b/monkey/infection_monkey/island_api_client/i_island_api_client.py
@@ -104,6 +104,8 @@ class IIslandAPIClient(ABC):
         :param agent_registration_data: Information about the agent to register
             with the island
         :raises IslandAPIConnectionError: If the client could not connect to the island
+        :raises IslandAPIRequestError: If there was a problem with the client request
+        :raises IslandAPIRequestFailedError: If the server experienced an error
         :raises IslandAPITimeoutError: If the command timed out
         """
 
diff --git a/monkey/tests/unit_tests/infection_monkey/island_api_client/test_http_island_api_client.py b/monkey/tests/unit_tests/infection_monkey/island_api_client/test_http_island_api_client.py
index 1d0ac17fc..d4acc1c79 100644
--- a/monkey/tests/unit_tests/infection_monkey/island_api_client/test_http_island_api_client.py
+++ b/monkey/tests/unit_tests/infection_monkey/island_api_client/test_http_island_api_client.py
@@ -10,6 +10,7 @@ from common.agent_event_serializers import (
     PydanticAgentEventSerializer,
 )
 from common.agent_events import AbstractAgentEvent
+from common.agent_registration_data import AgentRegistrationData
 from infection_monkey.island_api_client import (
     HTTPIslandAPIClient,
     IslandAPIConnectionError,
@@ -22,14 +23,22 @@ from infection_monkey.island_api_client import (
 SERVER = "1.1.1.1:9999"
 PBA_FILE = "dummy.pba"
 WINDOWS = "windows"
+AGENT_ID = UUID("80988359-a1cd-42a2-9b47-5b94b37cd673")
+AGENT_REGISTRATION = AgentRegistrationData(
+    id=AGENT_ID,
+    machine_hardware_id=1,
+    start_time=0,
+    parent_id=None,
+    cc_server=SERVER,
+    network_interfaces=[],
+)
 
 ISLAND_URI = f"https://{SERVER}/api?action=is-up"
 ISLAND_SEND_LOG_URI = f"https://{SERVER}/api/log"
 ISLAND_GET_PBA_FILE_URI = f"https://{SERVER}/api/pba/download/{PBA_FILE}"
 ISLAND_GET_AGENT_BINARY_URI = f"https://{SERVER}/api/agent-binaries/{WINDOWS}"
 ISLAND_SEND_EVENTS_URI = f"https://{SERVER}/api/agent-events"
-
-AGENT_ID = UUID("80988359-a1cd-42a2-9b47-5b94b37cd673")
+ISLAND_REGISTER_AGENT_URI = f"https://{SERVER}/api/agents"
 
 
 class Event1(AbstractAgentEvent):
@@ -275,3 +284,37 @@ def test_island_api_client_send_events__status_code(island_api_client, status_co
         with pytest.raises(expected_error):
             m.post(ISLAND_SEND_EVENTS_URI, status_code=status_code)
             island_api_client.send_events(events=[Event1(source=AGENT_ID, a=1)])
+
+
+@pytest.mark.parametrize(
+    "actual_error, expected_error",
+    [
+        (requests.exceptions.ConnectionError, IslandAPIConnectionError),
+        (TimeoutError, IslandAPITimeoutError),
+    ],
+)
+def test_island_api_client__register_agent(actual_error, expected_error):
+    with requests_mock.Mocker() as m:
+        m.get(ISLAND_URI)
+        island_api_client = HTTPIslandAPIClient(SERVER)
+
+        with pytest.raises(expected_error):
+            m.post(ISLAND_REGISTER_AGENT_URI, exc=actual_error)
+            island_api_client.register_agent(AGENT_REGISTRATION)
+
+
+@pytest.mark.parametrize(
+    "status_code, expected_error",
+    [
+        (401, IslandAPIRequestError),
+        (501, IslandAPIRequestFailedError),
+    ],
+)
+def test_island_api_client_register_agent__status_code(status_code, expected_error):
+    with requests_mock.Mocker() as m:
+        m.get(ISLAND_URI)
+        island_api_client = HTTPIslandAPIClient(SERVER)
+
+        with pytest.raises(expected_error):
+            m.post(ISLAND_REGISTER_AGENT_URI, status_code=status_code)
+            island_api_client.register_agent(AGENT_REGISTRATION)