@vicatcu Thanks for helping, this is the output
+------------------------------------+
| Welcome to Air Quality Egg 2.0 |
| Particulate Sensor Suite |
| Firmware Version 2.2.2 |
+------------------------------------+
Compiled on: Oct 26 2017 15:32:57
Egg Serial Number: egg0080301997080120
Info: Tiny Watchdog Initialization...OK.
Info: Slot Select Pins Initialization...OK.
Info: SPI Flash Initialization...OK.
Info: SD Card Initialization...Fail.
Info: Current firmware signature: 330343 7610
Info: SHT25 Initialization...OK.
Info: BMP280 Initialization...Fail.
Info: RTC Initialization...Fail.
Info: ESP8266 Initialization...OK.
Enter 'aqe' for CONFIG mode.
OPERATIONAL mode automatically begins after 12 secs of no input.
11...10...9...8...7...6...5...4...3...2...1...0...
-~=* In OPERATIONAL Mode *=~-
Info: Beginning Network Scan...
Info: Network Scan found 29 networks
Info: Access Point "Censores", Not Found.
Info: Attempting to connect anyway.
Info: Connecting to Access Point with SSID "Censores"...OK.
Info: Request DHCP...OK.
Info: IP Addr: 172.22.124.98
Info: Netmask: 255.255.252.0
Info: Gateway: 172.22.127.254
Info: Mirrored configuration already matches current configuration.
Info: Resolved "update.wickeddevice.com" to IP address 45.55.159.249
Info: -------------------------------------
Info: Integrity Checks:
Info: File Size: 330343
Info: CRC16 Checksum: 7610
Info: Download Complete
Info: Total Bytes: 495
Info: File Size: 11
Info: Checksum: 36125
Info: Duration: 5239
Info: Signature matches, skipping HEX download.
Info: Current ESP8266 Firmware Version is 1060200
Info: ESP8266 Firmware Version is up to date
Info: Resolved "mqtt.wickeddevice.com" to IP address 104.236.234.98
Info: Connecting to MQTT Broker with Client ID "egg0080301997080120" using Authentication...Failed.
Error: Unable to connect to MQTT server
Info: Attempting Watchdog Forced Restart.