Weewx + Davis Vantage Pro2 (WeatherLinkIP): intermittent communication issues

[Rodrigo Scuissiato]

Hello,

I have a Davis Vantage Pro2 with IP datalogger.

Davis Vantage EEPROM settings:

CONSOLE TYPE:                   Vantage Pro2
CONSOLE FIRMWARE:
  Date:                         Oct 29 2019
  Version:                      3.88

My [Vantage] section in weewx.conf:

    type = ethernet
    host = 192.168.3.99
    tcp_port = 22222
    tcp_send_delay = 0.5
    loop_request = 1
    iss_id = 1
    timeout = 4
    wait_before_retry = 1.2
    max_tries = 200
    model_type = 2
    driver = weewx.drivers.vantage

Most of the time, I get the following message and nothing happens:

Aug 22 10:42:20 sdaf weewxd[4596]: ERROR weewx.drivers.vantage: send_data: no <ACK> received from Vantage console
Aug 22 10:42:20 sdaf weewxd[4596]: ERROR weewx.drivers.vantage: LOOP batch try #1; error: No <ACK> received from Vantage console

Then, from nowhere, it starts working and downloads all the historical data since the last record that was added to the database:

Aug 22 10:52:19 sdaf weewxd[4596]: INFO weewx.manager: Added record 2025-08-20 11:42:00 UTC (1755690120) to database 'weewx'
Aug 22 10:52:20 sdaf weewxd[4596]: INFO weewx.manager: Added record 2025-08-20 11:42:00 UTC (1755690120) to daily summary in 'weewx'

Has anyone experienced this kind of intermittent <ACK> issue with WeatherLinkIP? Any suggestions on how to stabilize the connection?

Thanks,

Rodrigo

[Rodrigo Scuissiato]

weewxd version 5.1.0
Command line: /usr/share/weewx/weewxd.py /etc/weewx/weewx.conf
Using Python: 3.11.2 (main, Apr 28 2025, 14:11:48) [GCC 12.2.0]
Located at:   /usr/bin/python3
Platform:     Linux-6.12.25+rpt-rpi-v8-aarch64-with-glibc2.36
Locale:       'pt_BR.UTF-8' 

[Tom Keffer]

Unfortunately, I do not have access to a Weatherlink IP. Peter Nock did the actual port. 

One thing we've learned through the years: the WLIP works reliably only on LANs. Is the connection between the WLIP and your computer straightforward?

-tk

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[jterr...@gmail.com]

Weewx needs an exclusive network connection  to a Davis IP datalogger.  You need to verify that no other softwtare is trying to communicate with the datalogger.

Another point : by default, the datalogger is set to send periodically its data to weatherlink.com, and that can cause conncetion conflict withs weewx.

Connect to your datalogger with your browser   : http://aaa.bbb.ccc.ddd    where aaa.bbb.ccc.ddd is the ip addresse of the IP datalogger and verify that the upload to weatherlink.com is disabled - see attached image.

[Rodrigo Scuissiato]

Thanks, guys! I’ll try disabling all other transmissions to other sites, set up a dedicated VLAN for the datalogger, and give it another shot.

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[Ryan Stasel]



I have had occasional issues with connections being dropped to my WLIP. Never been able to figure out why (it’s extremely inconsistent. Sometimes it’ll happen multiple times a week, but recently it’s been well over a month since an issue). Nothing else talks to it. I ended up installing the heathchecks.io weewx extension (https://github.com/uajqq/weewx-healthchecks ) so I get alerted if weewx has been dead for 4 hours so I know to restart things.

Sadly the WLIP itself has no real logging to determine if it had an issue.

Oh, one thing of note: don’t have batteries in the receiver when using the WLIP. Think I saw that somewhere. Guess if the power to it goes out, you want it to actually shut off rather than try to run off the batteries. 

On Aug 23, 2025, at 05:59, Rodrigo Scuissiato <rgu...@gmail.com> wrote:



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