diff --git a/homeassistant/components/dlna_dmr/config_flow.py b/homeassistant/components/dlna_dmr/config_flow.py
index bfc5cb27129..2b38cf4e56d 100644
--- a/homeassistant/components/dlna_dmr/config_flow.py
+++ b/homeassistant/components/dlna_dmr/config_flow.py
@@ -236,6 +236,10 @@ class DlnaDmrFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
                 )
                 return self.async_abort(reason="already_in_progress")
 
+        # Abort if another config entry has the same location, in case the
+        # device doesn't have a static and unique UDN (breaking the UPnP spec).
+        self._async_abort_entries_match({CONF_URL: self._location})
+
         self.context["title_placeholders"] = {"name": self._name}
 
         return await self.async_step_confirm()
@@ -478,6 +482,11 @@ def _is_ignored_device(discovery_info: Mapping[str, Any]) -> bool:
     if manufacturer.startswith("xbmc") or model == "kodi":
         # kodi
         return True
+    if "philips" in manufacturer and "tv" in model:
+        # philips_js
+        # These TVs don't have a stable UDN, so also get discovered as a new
+        # device every time they are turned on.
+        return True
     if manufacturer.startswith("samsung") and "tv" in model:
         # samsungtv
         return True
diff --git a/tests/components/dlna_dmr/test_config_flow.py b/tests/components/dlna_dmr/test_config_flow.py
index e2d82d5b559..6ff718290b2 100644
--- a/tests/components/dlna_dmr/test_config_flow.py
+++ b/tests/components/dlna_dmr/test_config_flow.py
@@ -558,6 +558,21 @@ async def test_ssdp_flow_existing(
     assert config_entry_mock.data[CONF_URL] == NEW_DEVICE_LOCATION
 
 
+async def test_ssdp_flow_duplicate_location(
+    hass: HomeAssistant, config_entry_mock: MockConfigEntry
+) -> None:
+    """Test that discovery of device with URL matching existing entry gets aborted."""
+    config_entry_mock.add_to_hass(hass)
+    result = await hass.config_entries.flow.async_init(
+        DLNA_DOMAIN,
+        context={"source": config_entries.SOURCE_SSDP},
+        data=MOCK_DISCOVERY,
+    )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "already_configured"
+    assert config_entry_mock.data[CONF_URL] == MOCK_DEVICE_LOCATION
+
+
 async def test_ssdp_flow_upnp_udn(
     hass: HomeAssistant, config_entry_mock: MockConfigEntry
 ) -> None:
@@ -635,6 +650,7 @@ async def test_ssdp_ignore_device(hass: HomeAssistant) -> None:
         ("XBMC Foundation", "Kodi"),
         ("Samsung", "Smart TV"),
         ("LG Electronics.", "LG TV"),
+        ("Royal Philips Electronics", "Philips TV DMR"),
     ]:
         discovery = dict(MOCK_DISCOVERY)
         discovery[ssdp.ATTR_UPNP_MANUFACTURER] = manufacturer