diff --git a/doc/newsfragments/2751_change.no_parts_in_interactive.rst b/doc/newsfragments/2751_change.no_parts_in_interactive.rst
new file mode 100644
index 000000000..301ddd1e9
--- /dev/null
+++ b/doc/newsfragments/2751_change.no_parts_in_interactive.rst
@@ -0,0 +1 @@
+Parts are disabled in interactive mode to fix a recent regression on this.
diff --git a/testplan/common/utils/networking.py b/testplan/common/utils/networking.py
index cb43490a0..61235a8b1 100644
--- a/testplan/common/utils/networking.py
+++ b/testplan/common/utils/networking.py
@@ -14,61 +14,5 @@ def port_to_int(port):
         return socket.getservbyname(port)
 
 
-def format_access_urls(host, port, url_path, ssl=False):
-    """
-    Format a string to log to give HTTP access to a URL endpoint listening
-    on a particular host/port. Handles special 0.0.0.0 IP and formats IPV6
-    addresses. The returned string is indented by 4 spaces.
-
-    :param host: hostname or IP address
-    :type host: ``str``
-    :param port: port number
-    :type port: ``int``
-    :param url_path: path to format after host:port part of URL. A leading /
-        will be inserted if there isn't already one present.
-    :type url_path: ``str``
-    :return: a formatted string containing the connection URL(s)
-    :rtype: ``str``
-    """
-    # Strip any whitespace and insert a leading / to paths if required.
-    url_path = url_path.strip()
-    if not url_path.startswith("/"):
-        url_path = "/" + url_path
-
-    scheme = "https" if ssl else "http"
-
-    # Handle 0.0.0.0 as a special case: this means that the URL can be accessed
-    # both via localhost or on any IP address this host owns.
-    if host == "0.0.0.0":
-        local_url = "{scheme}://localhost:{port}{path}".format(
-            scheme=scheme, port=port, path=url_path
-        )
-
-        try:
-            local_ip = socket.gethostbyname(socket.getfqdn())
-            network_url = "{scheme}://{host}:{port}{path}".format(
-                scheme=scheme, host=local_ip, port=port, path=url_path
-            )
-
-            return (
-                "    Local: {local}\n"
-                "    On Your Network: {network}".format(
-                    local=local_url, network=network_url
-                )
-            )
-        except socket.gaierror:
-            return "    {}".format(local_url)
-    else:
-        # Check for an IPv6 address. Web browsers require IPv6 addresses
-        # to be enclosed in [].
-        try:
-            if ipaddress.ip_address(host).version == 6:
-                host = "[{}]".format(host)
-        except ValueError:
-            # Expected if the host is a host name instead of an IP address.
-            pass
-
-        url = "{scheme}://{host}:{port}{path}".format(
-            scheme=scheme, host=host, port=port, path=url_path
-        )
-        return "    {}".format(url)
+def get_hostname_access_url(port, url_path):
+    return f"http://{socket.getfqdn()}:{port}{url_path}"
diff --git a/testplan/runnable/base.py b/testplan/runnable/base.py
index 5fd2cae6a..e781f094a 100644
--- a/testplan/runnable/base.py
+++ b/testplan/runnable/base.py
@@ -394,7 +394,7 @@ def __init__(self, **options):
         # Before saving test report, recursively generate unique strings in
         # uuid4 format as report uid instead of original one. Skip this step
         # when executing unit/functional tests or running in interactive mode.
-        self._reset_report_uid = self.cfg.interactive_port is None
+        self._reset_report_uid = not self._is_interactive_run()
         self.scheduled_modules = []  # For interactive reload
         self.remote_services = {}
         self.runid_filename = uuid.uuid4().hex
@@ -455,7 +455,7 @@ def get_default_exporters(self):
                 test_exporters.WebServerExporter(ui_port=self.cfg.ui_port)
             )
         if (
-            self.cfg.interactive_port is None
+            not self._is_interactive_run()
             and self.cfg.tracing_tests is not None
         ):
             exporters.append(test_exporters.CoveredTestsExporter())
@@ -689,6 +689,12 @@ def discover(
                             **task_target_info.task_kwargs,
                         )
 
+                        multitest_parts = (
+                            None
+                            if self._is_interactive_run()
+                            else task_target_info.multitest_parts
+                        )
+
                         if task_target_info.target_params:
                             for param in task_target_info.target_params:
                                 if isinstance(param, dict):
@@ -707,7 +713,7 @@ def discover(
                                 tasks.extend(
                                     self._get_tasks(
                                         task_arguments,
-                                        task_target_info.multitest_parts,
+                                        multitest_parts,
                                         runtime_data,
                                     )
                                 )
@@ -715,7 +721,7 @@ def discover(
                             tasks.extend(
                                 self._get_tasks(
                                     task_arguments,
-                                    task_target_info.multitest_parts,
+                                    multitest_parts,
                                     runtime_data,
                                 )
                             )
@@ -860,7 +866,7 @@ def add(
             self.cfg.test_lister.log_test_info(task_info.materialized_test)
             return None
 
-        if self.cfg.interactive_port is not None:
+        if self._is_interactive_run():
             self._register_task_for_interactive(task_info)
             #  for interactive always use the local runner
             resource = local_runner
@@ -875,6 +881,9 @@ def add(
         )
         return uid
 
+    def _is_interactive_run(self):
+        return self.cfg.interactive_port is not None
+
     def _register_task(self, resource, target, uid, metadata):
         self._tests[uid] = resource
         self._test_metadata.append(metadata)
diff --git a/testplan/runnable/interactive/base.py b/testplan/runnable/interactive/base.py
index 6d600a878..a3eda394d 100644
--- a/testplan/runnable/interactive/base.py
+++ b/testplan/runnable/interactive/base.py
@@ -11,6 +11,7 @@
 
 from testplan.common import config, entity
 from testplan.common.report import Report
+from testplan.common.utils.networking import get_hostname_access_url
 from testplan.runnable.interactive import http, reloader, resource_loader
 from testplan.report import (
     TestReport,
@@ -859,9 +860,8 @@ def _display_connection_info(self):
             )
 
         self.logger.user_info(
-            "\nInteractive Testplan web UI is running. Access it at: %s:%s/interactive",
-            socket.getfqdn(),
-            str(port),
+            "\nInteractive Testplan web UI is running. Access it at: %s",
+            get_hostname_access_url(port, "/interactive"),
         )
 
     def _initial_report(self):
diff --git a/testplan/web_ui/server.py b/testplan/web_ui/server.py
index 78cef9a62..419367965 100644
--- a/testplan/web_ui/server.py
+++ b/testplan/web_ui/server.py
@@ -8,7 +8,7 @@
 from testplan import defaults
 from testplan.common.utils.thread import interruptible_join
 from testplan.common.utils.timing import wait
-from testplan.common.utils.networking import format_access_urls
+from testplan.common.utils.networking import get_hostname_access_url
 from testplan.common.utils.logger import TESTPLAN_LOGGER
 
 from .web_app import WebServer, TESTPLAN_UI_STATIC_DIR
@@ -91,8 +91,8 @@ def display(self):
         self._report_url = f"http://localhost:{port}/testplan/local"
 
         TESTPLAN_LOGGER.user_info(
-            "View the JSON report in the browser:\n%s",
-            format_access_urls(host, port, "/testplan/local"),
+            "View the JSON report in the browser: %s",
+            get_hostname_access_url(port, "/testplan/local"),
         )
 
     def wait_for_kb_interrupt(self):
diff --git a/tests/functional/testplan/exporters/testing/test_webserver.py b/tests/functional/testplan/exporters/testing/test_webserver.py
index 518820783..69587c045 100644
--- a/tests/functional/testplan/exporters/testing/test_webserver.py
+++ b/tests/functional/testplan/exporters/testing/test_webserver.py
@@ -19,7 +19,9 @@
 
 _TIMEOUT = 120
 _REQUEST_TIMEOUT = 0.5
-_URL_RE = re.compile(r"^\s*Local: (?P<url>[^\s]+)\s*$")
+_URL_RE = re.compile(
+    r"^View the JSON report in the browser: (?P<url>[^\s]+)\s*$"
+)
 
 
 @pytest.yield_fixture(
diff --git a/tests/functional/testplan/runners/pools/test_auto_part.py b/tests/functional/testplan/runners/pools/test_auto_part.py
index 462a68642..664bb899c 100755
--- a/tests/functional/testplan/runners/pools/test_auto_part.py
+++ b/tests/functional/testplan/runners/pools/test_auto_part.py
@@ -1,5 +1,6 @@
 import os
 import tempfile
+from pathlib import Path
 
 import pytest
 
@@ -38,6 +39,36 @@ def test_auto_parts_discover():
         assert pool.size == 2
 
 
+def test_auto_parts_discover_interactive(runpath):
+    mockplan = TestplanMock(
+        "plan",
+        runpath=runpath,
+        merge_scheduled_parts=True,
+        auto_part_runtime_limit=45,
+        plan_runtime_target=200,
+        interactive_port=0,
+        runtime_data={
+            "Proj1-suite": {
+                "execution_time": 199.99,
+                "setup_time": 5,
+            }
+        },
+    )
+    pool = ProcessPool(name="MyPool", size="auto")
+    mockplan.add_resource(pool)
+    current_folder = Path(__file__).resolve().parent
+    mockplan.schedule_all(
+        path=current_folder / "discover_tasks",
+        name_pattern=r".*auto_parts_tasks\.py$",
+        resource="MyPool",
+    )
+
+    local_pool = mockplan.resources.get(mockplan.resources.first())
+    # validate that only on etask added to the local pool without split
+    assert len(pool.added_items) == 0
+    assert len(local_pool.added_items) == 1
+
+
 def test_auto_weight_discover():
     with tempfile.TemporaryDirectory() as runpath:
         mockplan = TestplanMock(