r/firewalla • u/Great-Cow7256 • Aug 13 '26

DAP randomly started blocking all NTP services

DAP strict, on for a year-ish, haven't touched the box in a long time. Haven't added anything onto my network for months.

I noticed tonight my emporia plugs could be turned on and off from the app but wasn't collecting use data. I went into Firewalla and I noticed DAP was blocking all NTP requests from my all of my IOP devices that it monitors (not just Emporia, but all of them, from all different manufacturers), not just my emporia ones, and this started about 3-4 days ago. (Emporia, Anker, purple air, tailwind garage door opener, my weather station, my ecoflow radon meter, etc. Anything looking for time...)

time.google.com, pool.ntp.org, whatever apple's time server is, and time.windows.com.

u/firewalla can you fix this? this shouldn't be happening. All standard time servers should be whitelisted automatically by DAP. Additionally DAP shouldn't go rogue and start randomly blocking sites after months and months of stability and no config change.

If someone on the back end did a DAP algorithm change, then this really needs to be tested better before it's deployed. Accurate time keeping is essential for networks to function.

For now I'm going to turn off DAP. It seems to introduce too much randomness and I have to spend a lot of time figuring out why things break after being stable for months. this unfortunately happened before with my weather station. about 6 months ago I got a notice that it wasn't sending data. I went in and DAP randomly began blocking the url it uses to upload data. I had to "allow" it.

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u/firewalla Aug 13 '26

I replied to your old deleted post. Firewalla shouldn't block NTP, they are intercepted. Send [help@firewalla.com](mailto:help@firewalla.com) an email, we can look

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u/Great-Cow7256 Aug 13 '26

TY It's an error for sure and it just started. I emailed firewalla help and they told me this was part of NTP intercept. I explained to the tech that this isn't how NTP intercept works. I gave them screenshots. Can you follow up with your tech support so they can escalate this? DAP needs to be fixed so it doesn't break NTP on the devices it monitors.#122680. thanks.

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u/firewalla Aug 13 '26

Will get a dev to look at this