Hi, my 4.2" ESPaper B&W stopped working about 3 Month ago. It refreshes the Display ervery 60s but it only shows:
"Connection to the server could not be established or it timed out. Verify this device has access to the internet. Will retry in 1min"
Which it does since 3 Months.
Please find attached the Serial log:
Boot sequence arrived in setup()
******** Client Version: "V031" ********
******** Device Type: "Espaper42Bw" ********
******** Screen Type: "" ********
Display Settings. CS: 15, RST: 2, DC: 5, BUSY: 4
Current free heap: 44824
Checking FS
WIFI_SSID = [************]
WIFI_PASS = [************]
UPDATE_INTERVAL_MINS = [20]
TIMEZONE = [Europe/Zurich CET-1CEST,M3.5.0,M10.5.0/3]
NTP_SERVERS = [0.europe.pool.ntp.org,1.europe.pool.ntp.org,2.europe.pool.ntp.org]
DEVICE_ID = [*******-****-****-****-*******]
DEVICE_SECRET = [******************]
Loaded config
TOTAL_DEVICE_STARTS = [1]
SUCCESSFUL_DEVICE_STARTS = [1]
LAST_NTP_SYNC_TIME = [1716825641]
STARTS_WITHOUT_NTP_SYNC = [0]
LAST_CYCLE_DURATION = [17607]
ACTION_AFTER_REBOOT = [0]
Loaded data file
Saved values in data file.
Button state: 1
***Time before connecting to WiFi 1750
Reconnecting
WiFi connect..................................................192.168.1.14
NTP sync....
Current time: 1716825718
***Time before going to fetching data 10520
Downloading resource from:
Scheme: https
Host: www.espaper.com
Port: 443
Path: /public/devices/*******-****-****-****-*******/screen
Using secure WiFi client
[HTTP] configuring server root cert in client
MFLN supported: yes
[HTTP] begin...
Connecting to www.espaper.com:443
Free mem: 31144
*** Can't connect. ***
-------
Setting pin modes
Starting SPI transaction
Beginning SPI
Writting image to screen
Waiting until idle:
De-allocating frame buffer
Saved values in data file.
Free mem: 40504.
Waiting until idle:
Start millis: 10519, start time: 1716825718, current millis: 16576 -> now: 1716825724
Going to sleep for: 60[s]
Is there a certificate (cert) issue on the Server Side?
Seems like in this Thread but not answered/solved:
https://support.thingpulse.com/1506/espaper-2-connection-to-the-server-could-not-be-established
Please advise!
Best Regards
Sergio
