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fix(net): Allow setting custom base MAC on ESP32#12233

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me-no-dev merged 1 commit intomasterfrom
bugfix/base_mac
Jan 13, 2026
Merged

fix(net): Allow setting custom base MAC on ESP32#12233
me-no-dev merged 1 commit intomasterfrom
bugfix/base_mac

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This pull request updates the logic for initializing the MAC address in the NetworkManager::begin() method to ensure the base MAC address is set only if it hasn't already been set. This helps prevent unnecessary re-setting of the MAC address and improves reliability on ESP32 devices.

  • Network initialization improvement:
    • Updated the MAC address initialization logic in NetworkManager::begin() to first check if the base MAC address is already set using esp_base_mac_addr_get(). Only if it isn't set, the code then retrieves the default MAC from eFUSE and sets it with esp_base_mac_addr_set().

Fixes: #12180

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github-actions bot commented Jan 13, 2026

Test Results

 90 files   90 suites   30m 37s ⏱️
 67 tests  62 ✅ 0 💤 5 ❌
751 runs  745 ✅ 0 💤 6 ❌

For more details on these failures, see this check.

Results for commit cd2e1f3.

♻️ This comment has been updated with latest results.

@me-no-dev me-no-dev requested a review from lucasssvaz January 13, 2026 12:10
@me-no-dev me-no-dev added the Status: Review needed Issue or PR is awaiting review label Jan 13, 2026
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LGTM

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Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

MemoryFLASH [bytes]FLASH [%]RAM [bytes]RAM [%]
TargetDECINCDECINCDECINCDECINC
ESP32💚 -20⚠️ +9880.00⚠️ +0.190⚠️ +320.00⚠️ +0.12
ESP32C3000.000.00000.000.00
ESP32C5000.000.00000.000.00
ESP32C6000.000.00000.000.00
ESP32H2000.000.00000.000.00
ESP32P4000.000.00000.000.00
ESP32S2000.000.00000.000.00
ESP32S3000.000.00000.000.00
Click to expand the detailed deltas report [usage change in BYTES]
TargetESP32ESP32C3ESP32C5ESP32C6ESP32H2ESP32P4ESP32S2ESP32S3
ExampleFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAM
libraries/ArduinoOTA/examples/BasicOTA00000000--000000
libraries/ArduinoOTA/examples/SignedOTA00000000--000000
libraries/AsyncUDP/examples/AsyncUDPClient00000000--000000
libraries/AsyncUDP/examples/AsyncUDPMulticastServer00000000--000000
libraries/AsyncUDP/examples/AsyncUDPServer0000--00--000000
libraries/DNSServer/examples/CaptivePortal⚠️ +4000------0000--
libraries/ESP32/examples/Camera/CameraWebServer⚠️ +40----------00--
ESP32/examples/Camera/CameraWebServer (2)00----------00--
libraries/ESP32/examples/Time/SimpleTime0000------0000--
libraries/ESP_NOW/examples/ESP_NOW_Broadcast_Master0000--------00--
libraries/ESP_NOW/examples/ESP_NOW_Broadcast_Slave0000--------00--
libraries/ESP_NOW/examples/ESP_NOW_Network0000--------00--
libraries/ESP_NOW/examples/ESP_NOW_Serial0000--------00--
libraries/ESPmDNS/examples/mDNS-SD_Extended0000------0000--
libraries/ESPmDNS/examples/mDNS_Web_Server0000------0000--
libraries/Ethernet/examples/ETH_LAN8720⚠️ +280--------------
libraries/Ethernet/examples/ETH_TLK110⚠️ +280--------00----
libraries/Ethernet/examples/ETH_W5500_Arduino_SPI⚠️ +28000----000000--
libraries/Ethernet/examples/ETH_W5500_IDF_SPI⚠️ +28000----000000--
libraries/Ethernet/examples/ETH_WIFI_BRIDGE⚠️ +12000------0000--
libraries/FFat/examples/FFat_time0000------0000--
libraries/HTTPClient/examples/Authorization0000------0000--
libraries/HTTPClient/examples/BasicHttpClient0000------0000--
libraries/HTTPClient/examples/BasicHttpsClient0000------0000--
libraries/HTTPClient/examples/CustomHeaders0000------0000--
libraries/HTTPClient/examples/HTTPClientEnterprise⚠️ +12000--------00--
libraries/HTTPClient/examples/ReuseConnection0000------0000--
libraries/HTTPClient/examples/StreamHttpClient0000------0000--
libraries/HTTPUpdate/examples/httpUpdate0000------0000--
libraries/HTTPUpdate/examples/httpUpdateSPIFFS0000------0000--
libraries/HTTPUpdate/examples/httpUpdateSecure0000------0000--
libraries/HTTPUpdateServer/examples/WebUpdater0000------0000--
libraries/Insights/examples/DiagnosticsSmokeTest⚠️ +12000--------00--
libraries/Insights/examples/MinimalDiagnostics0000--------00--
libraries/LittleFS/examples/LITTLEFS_time0000------0000--
libraries/Matter/examples/MatterColorLight0000----00--00--
libraries/Matter/examples/MatterCommissionTest0000----00--00--
libraries/Matter/examples/MatterComposedLights0000----00--00--
libraries/Matter/examples/MatterContactSensor⚠️ +12000----00--00--
libraries/Matter/examples/MatterDimmableLight0000----00--00--
libraries/Matter/examples/MatterDimmablePlugin0000----00--00--
libraries/Matter/examples/MatterEnhancedColorLight0000----00--00--
libraries/Matter/examples/MatterEvents0000----00--00--
libraries/Matter/examples/MatterFan0000----00--00--
libraries/Matter/examples/MatterHumiditySensor⚠️ +12000----00--00--
libraries/Matter/examples/MatterLambdaSingleCallbackManyEPs0000----00--00--
libraries/Matter/examples/MatterMinimum⚠️ +12000----00--00--
libraries/Matter/examples/MatterOccupancySensor⚠️ +12000----00--00--
libraries/Matter/examples/MatterOccupancyWithHoldTime⚠️ +4000----00--00--
libraries/Matter/examples/MatterOnIdentify0000----00--00--
libraries/Matter/examples/MatterOnOffLight💚 -20000----00--00--
libraries/Matter/examples/MatterOnOffPlugin0000----00--00--
libraries/Matter/examples/MatterPressureSensor0000----00--00--
libraries/Matter/examples/MatterRainSensor⚠️ +12000----00--00--
libraries/Matter/examples/MatterSimpleBlinds0000----00--00--
libraries/Matter/examples/MatterSmartButton0000----00--00--
libraries/Matter/examples/MatterStatus⚠️ +12000----00--00--
libraries/Matter/examples/MatterTemperatureControlledCabinet0000----00--00--
libraries/Matter/examples/MatterTemperatureControlledCabinetLevels0000----00--00--
libraries/Matter/examples/MatterTemperatureLight0000----00--00--
libraries/Matter/examples/MatterTemperatureSensor⚠️ +12000----00--00--
libraries/Matter/examples/MatterThermostat0000----00--00--
libraries/Matter/examples/MatterWaterFreezeDetector⚠️ +12000----00--00--
libraries/Matter/examples/MatterWaterLeakDetector⚠️ +12000----00--00--
libraries/Matter/examples/MatterWindowCovering⚠️ +24000----00--00--
libraries/NetBIOS/examples/ESP_NBNST0000------0000--
libraries/NetworkClientSecure/examples/WiFiClientInsecure0000------0000--
libraries/NetworkClientSecure/examples/WiFiClientPSK0000------0000--
libraries/NetworkClientSecure/examples/WiFiClientSecure0000------0000--
libraries/NetworkClientSecure/examples/WiFiClientSecureEnterprise0000--------00--
libraries/NetworkClientSecure/examples/WiFiClientSecureProtocolUpgrade0000------0000--
libraries/NetworkClientSecure/examples/WiFiClientShowPeerCredentials0000------0000--
libraries/NetworkClientSecure/examples/WiFiClientTrustOnFirstUse⚠️ +12000------0000--
libraries/PPP/examples/PPP_Basic⚠️ +988⚠️ +3200----000000--
libraries/PPP/examples/PPP_WIFI_BRIDGE⚠️ +24000------0000--
libraries/SD/examples/SD_time0000------0000--
libraries/SD_MMC/examples/SDMMC_time00--------00----
libraries/SPIFFS/examples/SPIFFS_time0000------0000--
libraries/Update/examples/AWS_S3_OTA_Update0000------0000--
libraries/Update/examples/HTTPS_OTA_Update0000------0000--
libraries/Update/examples/HTTP_Client_AES_OTA_Update0000------0000--
libraries/Update/examples/HTTP_Server_AES_OTA_Update0000------0000--
libraries/Update/examples/OTAWebUpdater0000------0000--
libraries/Update/examples/Signed_OTA_Update0000------0000--
libraries/WebServer/examples/AdvancedWebServer⚠️ +12000------0000--
libraries/WebServer/examples/ChunkWriting0000------0000--
libraries/WebServer/examples/FSBrowser0000------0000--
libraries/WebServer/examples/Filters0000------0000--
libraries/WebServer/examples/HelloServer0000------0000--
libraries/WebServer/examples/HttpAdvancedAuth0000------0000--
libraries/WebServer/examples/HttpAuthCallback0000------0000--
libraries/WebServer/examples/HttpAuthCallbackInline⚠️ +12000------0000--
libraries/WebServer/examples/HttpBasicAuth0000------0000--
libraries/WebServer/examples/HttpBasicAuthSHA10000------0000--
libraries/WebServer/examples/HttpBasicAuthSHA1orBearerToken0000------0000--
libraries/WebServer/examples/Middleware0000--------00--
libraries/WebServer/examples/MultiHomedServers0000------0000--
libraries/WebServer/examples/PathArgServer0000------0000--
libraries/WebServer/examples/SDWebServer0000------0000--
libraries/WebServer/examples/SimpleAuthentification0000------0000--
libraries/WebServer/examples/UploadHugeFile0000------0000--
libraries/WebServer/examples/WebServer⚠️ +12000------0000--
libraries/WebServer/examples/WebUpdate0000------0000--
libraries/WiFi/examples/FTM/FTM_Initiator0000------0000--
libraries/WiFi/examples/FTM/FTM_Responder0000------0000--
libraries/WiFi/examples/SimpleWiFiServer0000------0000--
libraries/WiFi/examples/WPS0000--------00--
libraries/WiFi/examples/WiFiAccessPoint0000------0000--
libraries/WiFi/examples/WiFiBlueToothSwitch0000------------
libraries/WiFi/examples/WiFiClient0000------0000--
libraries/WiFi/examples/WiFiClientBasic0000------0000--
libraries/WiFi/examples/WiFiClientConnect0000------0000--
libraries/WiFi/examples/WiFiClientEnterprise0000--------00--
libraries/WiFi/examples/WiFiClientEvents0000------0000--
libraries/WiFi/examples/WiFiClientStaticIP0000------0000--
libraries/WiFi/examples/WiFiExtender0000------0000--
libraries/WiFi/examples/WiFiIPv60000------0000--
libraries/WiFi/examples/WiFiMulti0000------0000--
libraries/WiFi/examples/WiFiMultiAdvanced0000------0000--
libraries/WiFi/examples/WiFiScan0000------0000--
libraries/WiFi/examples/WiFiScanAsync0000------0000--
libraries/WiFi/examples/WiFiScanDualAntenna⚠️ +12000------0000--
libraries/WiFi/examples/WiFiScanTime0000------0000--
libraries/WiFi/examples/WiFiSmartConfig0000--------00--
libraries/WiFi/examples/WiFiTelnetToSerial⚠️ +12000------0000--
libraries/WiFi/examples/WiFiUDPClient0000------0000--
libraries/WiFiProv/examples/WiFiProv⚠️ +4000--------00--
libraries/Zigbee/examples/Zigbee_Gateway0000--------00--
libraries/RainMaker/examples/RMakerCustom--00--------00--
libraries/RainMaker/examples/RMakerCustomAirCooler--00--------00--
libraries/RainMaker/examples/RMakerSonoffDualR3--00--------00--
libraries/RainMaker/examples/RMakerSwitch--00--------00--
libraries/ESP_HostedOTA/examples/ESP_HostedOTA----------00----
ESP32/examples/Camera/CameraWebServer (3)----------------

@P-R-O-C-H-Y P-R-O-C-H-Y added Status: Pending Merge Pull Request is ready to be merged and removed Status: Review needed Issue or PR is awaiting review labels Jan 13, 2026
@me-no-dev me-no-dev merged commit 3f5098a into master Jan 13, 2026
113 of 118 checks passed
@me-no-dev me-no-dev deleted the bugfix/base_mac branch January 13, 2026 15:38
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Arduino-ESP32 v2, v3, and master unconditionally re-seed the base MAC from eFuse, breaking custom MAC overrides

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