diff --git a/config/nrfconnect/chip-module/Kconfig.defaults b/config/nrfconnect/chip-module/Kconfig.defaults
index fd6811d306..ab833ea56e 100644
--- a/config/nrfconnect/chip-module/Kconfig.defaults
+++ b/config/nrfconnect/chip-module/Kconfig.defaults
@@ -178,6 +178,10 @@ config BT_GATT_CACHING
     bool
     default n
 
+# Disable 2M PHY due to interoperability issues.
+config BT_CTLR_PHY_2M
+    default n
+
 # Enable NFC support
 
 config CHIP_NFC_COMMISSIONING
diff --git a/config/nrfconnect/chip-module/Kconfig.hci_rpmsg.defaults b/config/nrfconnect/chip-module/Kconfig.hci_rpmsg.defaults
index 83290b2b49..17c7115e28 100644
--- a/config/nrfconnect/chip-module/Kconfig.hci_rpmsg.defaults
+++ b/config/nrfconnect/chip-module/Kconfig.hci_rpmsg.defaults
@@ -58,6 +58,10 @@ config BT_CTLR_ASSERT_HANDLER
 config BT_HCI_RAW_RESERVE
     default 1
 
+# Disable 2M PHY due to interoperability issues.
+config BT_CTLR_PHY_2M
+    default n
+
 # Workaround: Unable to allocate command buffer when using K_NO_WAIT since
 # Host number of completed commands does not follow normal flow control.
 config BT_BUF_CMD_TX_COUNT
diff --git a/config/nrfconnect/chip-module/Kconfig.multiprotocol_rpmsg.defaults b/config/nrfconnect/chip-module/Kconfig.multiprotocol_rpmsg.defaults
index eb0b01e266..3d40e47429 100644
--- a/config/nrfconnect/chip-module/Kconfig.multiprotocol_rpmsg.defaults
+++ b/config/nrfconnect/chip-module/Kconfig.multiprotocol_rpmsg.defaults
@@ -58,6 +58,10 @@ config BT_CTLR_ASSERT_HANDLER
 config BT_HCI_RAW_RESERVE
     default 1
 
+# Disable 2M PHY due to interoperability issues.
+config BT_CTLR_PHY_2M
+    default n
+
 # Workaround: Unable to allocate command buffer when using K_NO_WAIT since
 # Host number of completed commands does not follow normal flow control.
 config BT_BUF_CMD_TX_COUNT