r/valetudorobotusers

NTP settings. Probably I am being dumb.

My robot (J15 Pro Ultra) is connected to a WLAN without Internet access, hosted by an OpenWRT router.

If I connect my laptop to the same WLAN, I can do this:

$ ntpdate -q 192.168.3.1
2026-05-08 20:44:35.920519 (+0100) -0.005088 +/- 0.002602 192.168.3.1 s2 no-leap

I think this means my OpenWRT router is acting as an NTP server reachable at 192.168.3.1 . Correct me if I'm wrong.

However, in the Valetudo web interface, if I go to (Menu icon) > Connectivity > NTP Connectivity and set the "Server" field to 192.168.3.1 and then press the refresh icon, I get Error: connection Timeout waiting for NTP response from 192.168.3.1:123.

What am I doing wrong?

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u/Valetudinous — 13 days ago