diff --git a/esphome/components/modem/__init__.py b/esphome/components/modem/__init__.py
index ce50e557bd..b830eb78c5 100644
--- a/esphome/components/modem/__init__.py
+++ b/esphome/components/modem/__init__.py
@@ -74,10 +74,7 @@ CONFIG_SCHEMA = cv.All(
             cv.Required(CONF_APN): cv.string,
             cv.Optional(CONF_STATUS_PIN): pins.gpio_input_pin_schema,
             cv.Optional(CONF_POWER_PIN): pins.gpio_output_pin_schema,
-            cv.Optional(CONF_DTR_PIN): pins.internal_gpio_output_pin_schema,
             cv.Optional(CONF_PIN_CODE): cv.string_strict,
-            cv.Optional(CONF_USERNAME): cv.string,
-            cv.Optional(CONF_PASSWORD): cv.string,
             cv.Optional(CONF_USE_ADDRESS): cv.string,
             cv.Optional(CONF_INIT_AT): cv.All(cv.ensure_list(cv.string)),
             cv.Optional(CONF_ENABLE_ON_BOOT, default=True): cv.boolean,
@@ -122,10 +119,6 @@ def _final_validate(config):
     # if wifi_config := fv.full_config.get().get(CONF_WIFI, None):
     #     if wifi_has_sta(wifi_config):
     #         raise cv.Invalid("Wifi must be AP only when using ethernet")
-    if config.get(CONF_STATUS_PIN, None):
-        _LOGGER.warning("Using '%s' is experimental", CONF_STATUS_PIN)
-    if not config[CONF_ENABLE_ON_BOOT]:
-        _LOGGER.warning("Using '%s: False' is experimental", CONF_ENABLE_ON_BOOT)
     if config.get(CONF_POWER_PIN, None):
         if config[CONF_MODEL] not in MODEM_MODELS_POWER:
             raise cv.Invalid(
diff --git a/esphome/components/modem/modem_component.cpp b/esphome/components/modem/modem_component.cpp
index cbcb7f9356..0058d93019 100644
--- a/esphome/components/modem/modem_component.cpp
+++ b/esphome/components/modem/modem_component.cpp
@@ -214,13 +214,6 @@ void ModemComponent::setup() {
   this->ppp_netif_ = esp_netif_new(&netif_ppp_config);
   assert(this->ppp_netif_);
 
-  if (!this->username_.empty()) {
-    ESP_LOGV(TAG, "Set auth: username: %s password: %s", this->username_.c_str(), this->password_.c_str());
-    ESPHL_ERROR_CHECK(esp_netif_ppp_set_auth(this->ppp_netif_, NETIF_PPP_AUTHTYPE_PAP, this->username_.c_str(),
-                                             this->password_.c_str()),
-                      "PPP set auth");
-  }
-
   err = esp_event_handler_instance_register(IP_EVENT, ESP_EVENT_ANY_ID, &ModemComponent::ip_event_handler, nullptr,
                                             nullptr);
   ESPHL_ERROR_CHECK(err, "IP event handler register error");
@@ -262,10 +255,8 @@ void ModemComponent::loop() {
         ESP_LOGD(TAG, "TONUART check sync");
         if (!this->modem_sync_()) {
           ESP_LOGE(TAG, "Unable to power on the modem");
-          // this->internal_state_.powered_on = false;
         } else {
           ESP_LOGI(TAG, "Modem powered ON");
-          // this->internal_state_.powered_on = true;
         }
         break;
       case ModemPowerState::TOFF:
diff --git a/esphome/components/modem/modem_component.h b/esphome/components/modem/modem_component.h
index 6ec770114b..c5c71d4cd0 100644
--- a/esphome/components/modem/modem_component.h
+++ b/esphome/components/modem/modem_component.h
@@ -62,8 +62,6 @@ class ModemComponent : public Component {
   void set_power_toff(int toff) { this->power_toff_ = toff; }
   void set_power_toffuart(int toffuart) { this->power_toffuart_ = toffuart; }
   void set_status_pin(GPIOPin *status_pin) { this->status_pin_ = status_pin; }
-  void set_username(const std::string &username) { this->username_ = username; }
-  void set_password(const std::string &password) { this->password_ = password; }
   void set_pin_code(const std::string &pin_code) { this->pin_code_ = pin_code; }
   void set_apn(const std::string &apn) { this->apn_ = apn; }
   void set_not_responding_cb(Trigger<> *not_responding_cb) { this->not_responding_cb_ = not_responding_cb; }
@@ -129,8 +127,6 @@ class ModemComponent : public Component {
   int power_toffuart_;
   GPIOPin *power_pin_{nullptr};
   std::string pin_code_;
-  std::string username_;
-  std::string password_;
   std::string apn_;
   std::vector<std::string> init_at_commands_;
   std::string use_address_;