WebUI not accessible after initial config #2211
Description
Describe the bug
After flashing the esp32dev-rtl_433 or esp32dev-multi_receiver environment via ESP Web Tools, the WebUI becomes unreachable after initial configuration.
The device boots, the setup screen is displayed, and I can enter WiFi and MQTT credentials successfully. After rebooting, the ESP32 is pingable and connected, but the WebUI is not accessible anymore at the provided IP. The browser hangs with a loading spinner and eventually times out. No login screen appears.
In contrast, the WebUI works correctly when I flash the esp32dev-ble environment via the same ESP Web Tools method.
To Reproduce
- Flash environment esp32dev-rtl_433 or esp32dev-multi_receiver to ESP32 using PlatformIO or WebUI
- Go through initial WebUI configuration (WiFi, MQTT)
- Reboot device (automatic after config)
- Attempt to access WebUI at the assigned IP
- Observe: no WebUI loads, just browser loading spinner, no auth prompt
Expected behavior
WebUI should be reachable after reboot and show the login screen or dashboard.
Screenshots
Log Output
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:1184
load:0x40078000,len:13192
load:0x40080400,len:3028
entry 0x400805e4
N:
************* WELCOME TO OpenMQTTGateway **************
[ 139][E][Preferences.cpp:50] begin(): nvs_open failed: NOT_FOUND
N: SYS config not found
N: OpenMQTTGateway Version: v1.8.1
N: OTA server cert hash: 02118cbaf5cc02748398d93ecdb0ef2a444c37358a617bfb2206dfe351dc7cf2
N: Config loaded from flash
N: Attempting Wifi connection with saved AP: 0
[ 1346][E][Preferences.cpp:50] begin(): nvs_open failed: NOT_FOUND
N: No WebUI config to load
N: OpenMQTTGateway URL: http://192.168.1.99/
N: ZwebUI setup done
[ 2852][E][Preferences.cpp:50] begin(): nvs_open failed: NOT_FOUND
N: RF Config not found using default
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
E: C1101 spi Connection Error
N: Enable RTL_433 Receiver: 433.92Mhz
rtl_433_ESP(3): CC1101 radio.begin() failed, code: -2
Environment:
- OpenMQTTGateway version: v1.8.1
- Board: ESP32-WROOM-32
- Environment (from PlatformIO):
- Not working: esp32dev-rtl_433, esp32dev-multi_receiver
- Working: esp32dev-ble
Additional context
- CC1101 is not yet connected so SPI errors are expected
- Confirmed that port 80 is open and no firewall blocks the connection
- Problem persists even after full erase and reflashing
- Tested with both DHCP and static IP
- WebUI fails across devices and browsers
- No prompt for credentials, just infinite loading
Goal
I want to use the ESP32-WROOM-32 with a CC1101 transceiver to receive 868 MHz FSK signals from a Bresser weather station using OpenMQTTGateway and forward them via MQTT to my broker.
Access to the WebUI is essential for diagnostics, testing reception, and configuring receivers.