diff --git a/wifi/hostapd/1.2/vts/functional/hostapd_hidl_test.cpp b/wifi/hostapd/1.2/vts/functional/hostapd_hidl_test.cpp
index 5c59819..b4840a6 100644
--- a/wifi/hostapd/1.2/vts/functional/hostapd_hidl_test.cpp
+++ b/wifi/hostapd/1.2/vts/functional/hostapd_hidl_test.cpp
@@ -69,6 +69,7 @@
                                           hostapd_instance_name_);
         hostapd_ = IHostapd::getService(hostapd_instance_name_);
         ASSERT_NE(hostapd_.get(), nullptr);
+        setupApIfaceIfNeeded();
         isAcsSupport_ = testing::checkSubstringInCommandOutput(
             "/system/bin/cmd wifi get-softap-supported-features",
             "wifi_softap_acs_supported");
@@ -86,14 +87,21 @@
     bool isWpa3SaeSupport_ = false;
     bool isAcsSupport_ = false;
 
-    std::string setupApIfaceIfNeededAndGetName() {
+    void setupApIfaceIfNeeded() {
         sp<IWifiApIface> wifi_ap_iface;
         wifi_ap_iface = getWifiApIface_1_4(wifi_instance_name_);
         EXPECT_NE(nullptr, wifi_ap_iface.get());
 
         const auto& status_and_name = HIDL_INVOKE(wifi_ap_iface, getName);
         EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_name.first.code);
-        return status_and_name.second;
+    }
+
+    std::string getPrimaryWlanIfaceName() {
+        std::array<char, PROPERTY_VALUE_MAX> buffer;
+        auto res = property_get("ro.vendor.wifi.sap.interface", buffer.data(), nullptr);
+        if (res > 0) return buffer.data();
+        property_get("wifi.interface", buffer.data(), "wlan0");
+        return buffer.data();
     }
 
     IHostapd::IfaceParams getIfaceParamsWithoutAcs(std::string iface_name) {
@@ -243,7 +251,7 @@
     if (!isAcsSupport_) GTEST_SKIP() << "Missing ACS support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                               getIfaceParamsWithAcs(ifname), getPskNwParams());
     EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
@@ -257,7 +265,7 @@
     if (!isAcsSupport_) GTEST_SKIP() << "Missing ACS support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                               getIfaceParamsWithAcsAndFreqRange(ifname),
                               getPskNwParams());
@@ -272,7 +280,7 @@
     if (!isAcsSupport_) GTEST_SKIP() << "Missing ACS support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                               getIfaceParamsWithAcsAndInvalidFreqRange(ifname),
                               getPskNwParams());
@@ -287,7 +295,7 @@
     if (!isAcsSupport_) GTEST_SKIP() << "Missing ACS support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                               getIfaceParamsWithAcs(ifname), getOpenNwParams());
     EXPECT_EQ(HostapdStatusCode::SUCCESS, status.code);
@@ -300,7 +308,7 @@
 TEST_P(HostapdHidlTest, AddPskAccessPointWithoutAcs) {
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithoutAcs(ifname), getPskNwParams());
@@ -314,7 +322,7 @@
 TEST_P(HostapdHidlTest, AddOpenAccessPointWithoutAcs) {
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithoutAcs(ifname), getOpenNwParams());
@@ -329,7 +337,7 @@
     if (!isWpa3SaeSupport_) GTEST_SKIP() << "Missing SAE support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                               getIfaceParamsWithoutAcs(ifname),
                               getSaeTransitionNwParams());
@@ -344,7 +352,7 @@
     if (!isWpa3SaeSupport_) GTEST_SKIP() << "Missing SAE support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithoutAcs(ifname), getSaeNwParams());
@@ -359,7 +367,7 @@
     if (!isAcsSupport_) GTEST_SKIP() << "Missing ACS support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status_1_2 =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2, getIfaceParamsWithAcs(ifname),
                     getPskNwParams());
@@ -377,7 +385,7 @@
 TEST_P(HostapdHidlTest, RemoveAccessPointWithoutAcs) {
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status_1_2 =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithoutAcs(ifname), getPskNwParams());
@@ -395,7 +403,7 @@
 TEST_P(HostapdHidlTest, AddPskAccessPointWithInvalidChannel) {
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithInvalidChannel(ifname), getPskNwParams());
@@ -409,7 +417,7 @@
 TEST_P(HostapdHidlTest, AddInvalidPskAccessPointWithoutAcs) {
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithoutAcs(ifname), getInvalidPskNwParams());
@@ -424,7 +432,7 @@
     if (!isWpa3SaeSupport_) GTEST_SKIP() << "Missing SAE support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status = HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                               getIfaceParamsWithoutAcs(ifname),
                               getInvalidSaeTransitionNwParams());
@@ -439,7 +447,7 @@
     if (!isWpa3SaeSupport_) GTEST_SKIP() << "Missing SAE support";
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithoutAcs(ifname), getInvalidSaeNwParams());
@@ -451,7 +459,7 @@
  * when hotspot interface doesn't init..
  */
 TEST_P(HostapdHidlTest, DisconnectClientWhenIfaceNotAvailable) {
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status = HIDL_INVOKE(hostapd_, forceClientDisconnect, ifname,
                               kTestZeroMacAddr, kTestDisconnectReasonCode);
     EXPECT_EQ(HostapdStatusCode::FAILURE_IFACE_UNKNOWN, status.code);
@@ -464,7 +472,7 @@
 TEST_P(HostapdHidlTest, DisconnectClientWhenIfacAvailable) {
     if (is_1_3(hostapd_))
         GTEST_SKIP() << "Ignore addAccessPoint_1_2 on hostapd 1_3";
-    std::string ifname = setupApIfaceIfNeededAndGetName();
+    std::string ifname = getPrimaryWlanIfaceName();
     auto status_1_2 =
         HIDL_INVOKE(hostapd_, addAccessPoint_1_2,
                     getIfaceParamsWithoutAcs(ifname), getOpenNwParams());