diff --git a/src/asyncudplistener.cpp b/src/asyncudplistener.cpp
index bde1c48..474bd73 100644
--- a/src/asyncudplistener.cpp
+++ b/src/asyncudplistener.cpp
@@ -145,25 +145,6 @@ tl::expected<UdpPacketWrapper, std::string> makeUdpPacketWrapper(pbufUniquePtr &
 }
 } // namespace
 
-tcpip_adapter_if_t UdpPacketWrapper::tcpIpAdapter() const
-{
-    for (int i = 0; i < TCPIP_ADAPTER_IF_MAX; i++)
-    {
-        tcpip_adapter_if_t tcpip_if = tcpip_adapter_if_t(i);
-        struct netif *nif{};
-        if (const auto result = tcpip_adapter_get_netif(tcpip_if, (void**)&nif); result != ESP_OK)
-        {
-            ESP_LOGW(TAG, "tcpip_adapter_get_netif() failed with %s", esp_err_to_name(result));
-            continue;
-        }
-
-        if (nif && nif == _ntif)
-            return tcpip_if;
-    }
-
-    return TCPIP_ADAPTER_IF_MAX;
-}
-
 bool AsyncUdpListener::listen(const ip_addr_t *addr, uint16_t port)
 {
     if (!_udp_queue.constructed())
diff --git a/src/asyncudplistener.h b/src/asyncudplistener.h
index 139f832..df4ee96 100644
--- a/src/asyncudplistener.h
+++ b/src/asyncudplistener.h
@@ -34,8 +34,6 @@ struct UdpPacketWrapper
 
     auto data() const { return _data; }
 
-    tcpip_adapter_if_t tcpIpAdapter() const;
-
     struct netif *ntif() const { return _ntif; }
 
     bool isBroadcast() const { return ip_addr_isbroadcast(&(_local.addr), _ntif); }