diff --git a/tests/congure_abe/tests/01-run.py b/tests/congure_abe/tests/01-run.py
index 714ab79bf6..b098aa5c1d 100755
--- a/tests/congure_abe/tests/01-run.py
+++ b/tests/congure_abe/tests/01-run.py
@@ -8,6 +8,7 @@
 
 import logging
 import sys
+import time
 import unittest
 
 from riotctrl.ctrl import RIOTCtrl
@@ -15,6 +16,8 @@ from riotctrl.shell.json import RapidJSONShellInteractionParser, rapidjson
 
 from riotctrl_shell.congure_test import CongureTest
 
+from testrunner.spawn import MAKE_TERM_CONNECT_DELAY
+
 
 class TestCongUREBase(unittest.TestCase):
     # pylint: disable=too-many-public-methods
@@ -25,6 +28,7 @@ class TestCongUREBase(unittest.TestCase):
     def setUpClass(cls):
         cls.ctrl = RIOTCtrl()
         cls.ctrl.reset()
+        time.sleep(MAKE_TERM_CONNECT_DELAY)
         cls.ctrl.start_term()
         if cls.DEBUG:
             cls.ctrl.term.logfile = sys.stdout
diff --git a/tests/congure_quic/tests/01-run.py b/tests/congure_quic/tests/01-run.py
index 1b1165b06c..8d0ef8b936 100755
--- a/tests/congure_quic/tests/01-run.py
+++ b/tests/congure_quic/tests/01-run.py
@@ -8,6 +8,7 @@
 
 import logging
 import sys
+import time
 import unittest
 
 from riotctrl.ctrl import RIOTCtrl
@@ -15,6 +16,8 @@ from riotctrl.shell.json import RapidJSONShellInteractionParser, rapidjson
 
 from riotctrl_shell.congure_test import CongureTest
 
+from testrunner.spawn import MAKE_TERM_CONNECT_DELAY
+
 
 class TestCongUREBase(unittest.TestCase):
     DEBUG = False
@@ -25,6 +28,7 @@ class TestCongUREBase(unittest.TestCase):
     def setUpClass(cls):
         cls.ctrl = RIOTCtrl()
         cls.ctrl.reset()
+        time.sleep(MAKE_TERM_CONNECT_DELAY)
         cls.ctrl.start_term()
         if cls.DEBUG:
             cls.ctrl.term.logfile = sys.stdout
diff --git a/tests/congure_reno/tests/01-run.py b/tests/congure_reno/tests/01-run.py
index 0b08dd0880..993ff645fc 100755
--- a/tests/congure_reno/tests/01-run.py
+++ b/tests/congure_reno/tests/01-run.py
@@ -8,6 +8,7 @@
 
 import logging
 import sys
+import time
 import unittest
 
 from riotctrl.ctrl import RIOTCtrl
@@ -15,6 +16,8 @@ from riotctrl.shell.json import RapidJSONShellInteractionParser, rapidjson
 
 from riotctrl_shell.congure_test import CongureTest
 
+from testrunner.spawn import MAKE_TERM_CONNECT_DELAY
+
 
 class TestCongUREBase(unittest.TestCase):
     # pylint: disable=too-many-public-methods
@@ -25,6 +28,7 @@ class TestCongUREBase(unittest.TestCase):
     def setUpClass(cls):
         cls.ctrl = RIOTCtrl()
         cls.ctrl.reset()
+        time.sleep(MAKE_TERM_CONNECT_DELAY)
         cls.ctrl.start_term()
         if cls.DEBUG:
             cls.ctrl.term.logfile = sys.stdout
diff --git a/tests/congure_test/tests/01-run.py b/tests/congure_test/tests/01-run.py
index 677606cf2d..4db47e2d4e 100755
--- a/tests/congure_test/tests/01-run.py
+++ b/tests/congure_test/tests/01-run.py
@@ -9,6 +9,7 @@
 import logging
 import os
 import sys
+import time
 import unittest
 
 from riotctrl.ctrl import RIOTCtrl
@@ -17,6 +18,8 @@ from riotctrl.shell.json import RapidJSONShellInteractionParser, rapidjson
 
 from riotctrl_shell.congure_test import CongureTest
 
+from testrunner.spawn import MAKE_TERM_CONNECT_DELAY
+
 
 class TestCongUREBase(unittest.TestCase):
     DEBUG = False
@@ -25,6 +28,7 @@ class TestCongUREBase(unittest.TestCase):
     def setUpClass(cls):
         cls.ctrl = RIOTCtrl()
         cls.ctrl.reset()
+        time.sleep(MAKE_TERM_CONNECT_DELAY)
         cls.ctrl.start_term()
         if cls.DEBUG:
             cls.ctrl.term.logfile = sys.stdout