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arendst / Tasmota

Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at
https://tasmota.github.io/docs
GNU General Public License v3.0
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NTP from DHCP is not working on 9.3.1 (but is working on 8.5.0) #11132

Closed l3nticular closed 3 years ago

l3nticular commented 3 years ago

PROBLEM DESCRIPTION

A clear and concise description of what the problem is. One Tasmota unit does not attempt to use the NTP server listed in the DHCP option. Manually setting NTP server with "NTPServer1 10.70.70.1" works fine.

Today I set up a fresh D1 mini with Tasmota on my IoT VLAN. The other 4 Tasmota devices on this VLAN get the NTP from DHCP just fine (these are all running 8.5.0). I put 9.3.1 on the new device and it's not able to get the NTP server from the DHCP option.

DHCP+DNS server is dnsmasq running in a Docker container on a Pi (this is a standalone dnsmasq instance for the VLAN, not PiHole).

NOTE: After writing but before submitting this Issue, I completely erased the failing unit and flashed 8.5.0 with Tasmotizer. I was able to see this function correctly work on this unit. I then completely erased and flashed 9.3.1 and immediately the unit failed again (no configuration loaded, just WiFi SSID+Password manually entered).

REQUESTED INFORMATION

Make sure your have performed every step and checked the applicable boxes before submitting your issue. Thank you!

There are old closed issues that seemed to have been due to malformed DHCP options. Here it's working on one version of Tasmota and not the other.

- [x] Provide the output of this command: `Status 0`:
```lua
  STATUS 0 output here:
08:56:08.325 MQT: stat/WaterRecirc/STATUS = {"Status":{"Module":1,"DeviceName":"WaterRecircCtrl","FriendlyName":["Water Recirculation Control"],"Topic":"WaterRecirc","ButtonTopic":"0","Power":0,"PowerOnState":3,"LedState":0,"LedMask":"FFFF","SaveData":1,"SaveState":1,"SwitchTopic":"0","SwitchMode":[0,0,0,0,0,0,0,0],"ButtonRetain":0,"SwitchRetain":0,"SensorRetain":0,"PowerRetain":0,"InfoRetain":0,"StateRetain":0}}
08:56:08.331 MQT: stat/WaterRecirc/STATUS1 = {"StatusPRM":{"Baudrate":115200,"SerialConfig":"8N1","GroupTopic":"tasmotas","OtaUrl":"http://ota.tasmota.com/tasmota/release/tasmota.bin.gz","RestartReason":"Software/System restart","Uptime":"0T00:22:25","StartupUTC":"2021-02-26T07:33:43","Sleep":50,"CfgHolder":4617,"BootCount":18,"BCResetTime":"2021-02-26T08:18:18","SaveCount":45,"SaveAddress":"F7000"}}
08:56:08.337 MQT: stat/WaterRecirc/STATUS2 = {"StatusFWR":{"Version":"9.3.1(tasmota)","BuildDateTime":"2021-02-23T12:02:38","Boot":31,"Core":"2_7_4_9","SDK":"2.2.2-dev(38a443e)","CpuFrequency":80,"Hardware":"ESP8266EX","CR":"398/699"}}
08:56:08.343 MQT: stat/WaterRecirc/STATUS3 = {"StatusLOG":{"SerialLog":2,"WebLog":2,"MqttLog":0,"SysLog":0,"LogHost":"","LogPort":514,"SSId":["Smarties",""],"TelePeriod":300,"Resolution":"558180C0","SetOption":["00008009","2805C8000100060000005A0A000000000000","00000080","00006000","00000000"]}}
08:56:08.352 MQT: stat/WaterRecirc/STATUS4 = {"StatusMEM":{"ProgramSize":593,"Free":408,"Heap":23,"ProgramFlashSize":4096,"FlashSize":4096,"FlashChipId":"1640C8","FlashFrequency":40,"FlashMode":3,"Features":["00000809","8FDAC787","04368001","000000CF","010013C0","C000F981","00004004","00001000","00000000"],"Drivers":"1,2,3,4,5,6,7,8,9,10,12,16,18,19,20,21,22,24,26,27,29,30,35,37,45","Sensors":"1,2,3,4,5,6"}}
08:56:08.360 MQT: stat/WaterRecirc/STATUS5 = {"StatusNET":{"Hostname":"Water_Recirc_Ctrl","IPAddress":"10.70.70.15","Gateway":"10.70.70.1","Subnetmask":"255.255.255.0","DNSServer":"10.70.70.1","Mac":"5C:CF:7F:44:B7:18","Webserver":2,"WifiConfig":4,"WifiPower":17.0}}
08:56:08.366 MQT: stat/WaterRecirc/STATUS6 = {"StatusMQT":{"MqttHost":"berryblast.lan","MqttPort":1883,"MqttClientMask":"DVES_%06X","MqttClient":"DVES_44B718","MqttUser":"DVES_USER","MqttCount":1,"MAX_PACKET_SIZE":1200,"KEEPALIVE":30}}
08:56:08.373 MQT: stat/WaterRecirc/STATUS7 = {"StatusTIM":{"UTC":"2021-02-26T07:56:08","Local":"2021-02-26T08:56:08","StartDST":"2021-03-28T02:00:00","EndDST":"2021-10-31T03:00:00","Timezone":"+01:00","Sunrise":"07:37","Sunset":"18:28"}}
08:56:08.378 MQT: stat/WaterRecirc/STATUS10 = {"StatusSNS":{"Time":"2021-02-26T08:56:08"}}
08:56:08.384 MQT: stat/WaterRecirc/STATUS11 = {"StatusSTS":{"Time":"2021-02-26T08:56:08","Uptime":"0T00:22:25","UptimeSec":1345,"Heap":23,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":1,"POWER":"OFF","Wifi":{"AP":1,"SSId":"Smarties","BSSId":"D8:07:B6:20:EB:AA","Channel":1,"RSSI":76,"Signal":-62,"LinkCount":1,"Downtime":"0T00:00:03"}}}

dnsmasq    | dnsmasq-dhcp: 3865976053 available DHCP range: 10.70.70.100 -- 10.70.70.250
dnsmasq    | dnsmasq-dhcp: 3865976053 DHCPDISCOVER(eth0.7) 5c:cf:7f:44:b7:18 
dnsmasq    | dnsmasq-dhcp: 3865976053 tags: known, eth0.7
dnsmasq    | dnsmasq-dhcp: 3865976053 DHCPOFFER(eth0.7) 10.70.70.15 5c:cf:7f:44:b7:18 
dnsmasq    | dnsmasq-dhcp: 3865976053 requested options: 1:netmask, 3:router, 28:broadcast, 6:dns-server, 
dnsmasq    | dnsmasq-dhcp: 3865976053 requested options: 42:ntp-server
dnsmasq    | dnsmasq-dhcp: 3865976053 next server: 10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  1 option: 53 message-type  2
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 54 server-identifier  10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 51 lease-time  18h
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 58 T1  9h
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 59 T2  15h45m
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option:  1 netmask  255.255.255.0
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 28 broadcast  10.70.70.255
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option:  3 router  10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option:  6 dns-server  10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 42 ntp-server  10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 available DHCP range: 10.70.70.100 -- 10.70.70.250
dnsmasq    | dnsmasq-dhcp: 3865976053 client provides name: Water_Recirc_Ctrl
dnsmasq    | dnsmasq-dhcp: 3865976053 DHCPREQUEST(eth0.7) 10.70.70.15 5c:cf:7f:44:b7:18 
dnsmasq    | dnsmasq-dhcp: 3865976053 tags: known, eth0.7
dnsmasq    | dnsmasq-dhcp: 3865976053 DHCPACK(eth0.7) 10.70.70.15 5c:cf:7f:44:b7:18 water_recirc
dnsmasq    | dnsmasq-dhcp: 3865976053 requested options: 1:netmask, 3:router, 28:broadcast, 6:dns-server, 
dnsmasq    | dnsmasq-dhcp: 3865976053 requested options: 42:ntp-server
dnsmasq    | dnsmasq-dhcp: 3865976053 next server: 10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  1 option: 53 message-type  5
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 54 server-identifier  10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 51 lease-time  18h
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 58 T1  9h
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 59 T2  15h45m
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option:  1 netmask  255.255.255.0
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 28 broadcast  10.70.70.255
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option:  3 router  10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option:  6 dns-server  10.70.70.1
dnsmasq    | dnsmasq-dhcp: 3865976053 sent size:  4 option: 42 ntp-server  10.70.70.1
dnsmasq    | dnsmasq: query[A] pool.ntp.org from 10.70.70.15
dnsmasq    | dnsmasq: config error is REFUSED
dnsmasq    | dnsmasq: query[A] nl.pool.ntp.org from 10.70.70.15
dnsmasq    | dnsmasq: config error is REFUSED
dnsmasq    | dnsmasq: query[A] 0.nl.pool.ntp.org from 10.70.70.15
dnsmasq    | dnsmasq: config error is REFUSED
dnsmasq    | dnsmasq: query[A] pool.ntp.org from 10.70.70.15
dnsmasq    | dnsmasq: config error is REFUSED

From failing unit + dnsmasq log: failed.txt

From working unit (v8.5.0) + dnsmasq log: working.txt

TO REPRODUCE

Set up DHCP server with IP address of desired NTP server (which happens to be the same as the DHCP server). Connect an 8.5.0 unit and a 9.3.1 unit to the network. 8.5.0 unit works, 9.3.1 unit doesn't.

EXPECTED BEHAVIOUR

Unit should use the provided NTP server and not the FW defaults.

SCREENSHOTS

If applicable, add screenshots to help explain your problem.

ADDITIONAL CONTEXT

See attached files

Jason2866 commented 3 years ago

Since of many problems (generated from routers which do not correctly provide the NTP server via DHCP) Tasmota do NOT use this way anymore. NTP servers are set in Tasmota (only).

ascillato2 commented 3 years ago

Closing this issue as it has been answered.

Support Information

See Docs for more information. See Chat for more user experience. See Code of Conduct

l3nticular commented 3 years ago

Thanks! Glad to know that it was intentional behavior.

nferch commented 2 years ago

This seems to conflict with https://tasmota.github.io/docs/FAQ/#timers-trigger-at-the-wrong-time but matches the behavior I've been observing. Should the documentation be updated?

It'd also be nice to have a configuration setting to use the NTP server from the DHCP response, to avoid to hardcode the server in the configuration.

Jason2866 commented 2 years ago

@nferch Thx! Outdated info removed.

totti4ever commented 2 years ago

Since of many problems (generated from routers which do not correctly provide the NTP server via DHCP) Tasmota do NOT use this way anymore. NTP servers are set in Tasmota (only).

Wow, this should be a sticky/FAQ somewhere? Was trying stuff since weeks to get this running :-D

Jason2866 commented 2 years ago

@totti4ever We have Tasmota discussions for such stuff. Normally you get a answer in a few hours. If we stick any relevant info, we would have a forrest of sticked informations. The info is there. Changelog