Sonoff LAN: Temperature Updates Not Working

Hey guys, let's dive into a super common and frankly annoying problem many of us have encountered with the Sonoff LAN integration in Home Assistant. If you've noticed your temperature and humidity sensors suddenly going silent, only waking up when you manually open the eWeLink app on your phone, you're definitely not alone. This issue has been a real head-scratcher, with folks like me spending days troubleshooting, trying everything from complex automations to deep dives into configuration settings. We've restored backups, changed passwords, and even set up entirely new accounts, all to no avail. It's like these little sensors are playing hard to get, only responding when they feel like it or when the official app gives them a nudge. This article is all about breaking down what's happening, exploring the common culprits, and hopefully, guiding you toward a fix. We'll cover the troubleshooting steps I've personally taken, the frustrating dead ends, and the leading theories about why this is happening, especially with newer firmware versions. So, grab a coffee, and let's get this sorted!

Understanding the Sonoff LAN Integration and Its Quirks

So, first things first, let's get a handle on what the Sonoff LAN integration actually does and why it's so popular. For many of us, Home Assistant is the central hub for our smart homes, and we want all our devices talking to each other seamlessly. The Sonoff LAN integration was a game-changer because it allowed us to control our Sonoff devices directly over our local network, bypassing the need to constantly go through the eWeLink cloud. This meant faster response times, less reliance on internet connectivity, and, importantly, more privacy. The idea was that your Home Assistant instance could directly poll your Sonoff devices for their status, including those precious temperature and humidity readings from sensors like the Sonoff TH series. However, as is often the case with smart home tech, things aren't always straightforward. Updates to device firmware, changes in cloud communication protocols, or even updates to Home Assistant itself can throw a wrench into the works. Recently, a significant number of users, myself included, have hit a wall where temperature and humidity data simply stops updating unless the official eWeLink mobile app is actively running on a phone. This isn't just a minor inconvenience; it completely undermines the purpose of having these sensors integrated into our smart home automation systems. The core of the problem seems to stem from how Sonoff devices, particularly with newer firmware like v1.3.0, communicate their data. It appears there's a hierarchy being enforced, where the official eWeLink app gets priority access and triggers immediate data pushes, while integrations like the Sonoff LAN add-on are relegated to a lower priority. This results in stale data being reported by Home Assistant because the device isn't pushing updates unless explicitly commanded or, it seems, when the eWeLink app is actively polling or forcing a sync. We've tried various methods to force these updates, from sending specific JSON commands to toggling device settings, but many of these attempts are either ignored or actively blocked by the device's firmware, often logging messages like `getDataSync: disabled.json -> no data` or `filtered as third-party`. This suggests the device is aware of the communication attempt but is deliberately withholding the data. It’s a frustrating situation, as it makes those sophisticated automations we rely on – like adjusting heating based on room temperature – completely unreliable. The integration is clearly communicating with the eWeLink cloud, as evidenced by the fact that the eWeLink app *does* show current data, but the device itself seems to be holding back the real-time updates from our local Home Assistant instances. This begs the question: did Sonoff or eWeLink make a deliberate change to prioritize their app over third-party integrations, perhaps to save bandwidth or encourage app usage? It’s a question many of us are grappling with as we try to restore functionality to our smart homes.

Troubleshooting: What Doesn't Seem to Work Anymore

Alright guys, let's get into the nitty-gritty of what I've tried and, more importantly, what *didn't* work when tackling this stubborn Sonoff LAN integration temperature update issue. After days of sifting through logs, running automations, and staring blankly at my Home Assistant dashboard, I've compiled a list of common troubleshooting steps that, frustratingly, seem to be less effective or outright ignored by the devices with newer firmware. One of the first things I tried, based on some community discussions, was manipulating the `uiActive` setting. The idea was to either set it to a standard value like `120` (presumably seconds for update intervals) or try sending nested `uiActive` commands via JSON through an automation. The automation trace in Home Assistant confirmed that the command was successfully sent and processed by the Home Assistant core. However, the device itself completely ignored it. The logs often indicated that the command was `filtered as third-party`, which is a major clue that the device's firmware is actively rejecting or deprioritizing commands that don't come directly from the official eWeLink ecosystem. It’s like yelling at a bouncer who only lets certain people into the club. Next, I experimented with the Sonoff LAN add-on itself, specifically trying to configure it as a persistent 'Virtual Phone' connection. The hope here was that by simulating a constant connection, the add-on could perhaps trick the device into maintaining a more regular data stream. Unfortunately, this also failed spectacularly. The logs from the add-on were consistently showing errors like `getDataSync: disabled.json -> no data`, confirming that the add-on was stuck in a loop, attempting to use broken LAN polling methods that the device was no longer responding to. It wasn't getting any usable data, effectively proving that the direct LAN communication for updates was not functioning as expected. Another classic troubleshooting step involves trying to force a device re-communication by toggling its network status. I attempted this by changing the `sledOnline` setting, which is supposed to control the network status LED and, in theory, trigger a configuration write or a status broadcast. The device *did* respond to the toggle – the LED on the Sonoff device changed as expected – but this action still didn't coax it into pushing any updated temperature data. It was a superficial change that didn't address the underlying issue of data transmission. I also tried the built-in Home Assistant services like `homeassistant.update_entity` and `homeassistant.reload_config_entry`. These services are designed to refresh entities and their configurations, and they did seem to have a *partial* effect. The 'Last Checked' timestamp on the entity in Home Assistant would update, giving the illusion that something was happening. However, the actual temperature or humidity *value* remained stubbornly the same. This indicated that while Home Assistant was trying to poll for updates, the cloud or the device was simply returning the same stale, cached data it had previously provided. Finally, I attempted to leverage the device's internal monitoring by switching to 'Auto Mode' and setting up a dummy rule, like a temperature threshold below 35°F. The goal was to force the Sonoff device's internal MCU to actively monitor the temperature, hoping that any change would trigger a cloud upload. While the internal monitoring did become active, the crucial part – the cloud upload – was suppressed. This happened because the temperature didn't change by the required delta (typically around ±0.5°F), meaning the device didn't see a significant enough change to warrant sending an update, even though the *monitoring* itself was active. Each of these attempts, while logical and often effective in the past or with different devices, ultimately failed to resolve the core problem of inconsistent temperature and humidity updates with this specific Sonoff LAN setup.

The eWeLink App Trigger: A Crucial Observation

Now, here’s the piece of the puzzle that has become incredibly significant, guys, and it points towards a deliberate change in how the devices operate: the behavior when the official eWeLink app is involved. As many of us have discovered through sheer frustration and endless testing, opening the eWeLink app on your smartphone – even if you're already logged in and the app was running in the background – triggers an *instant* update of the temperature and humidity values in Home Assistant. It’s like flipping a switch; the data that was previously stagnant suddenly jumps to the correct, current reading. This isn't just a coincidence; it's a repeatable action that has become the most reliable, albeit manual, way to get fresh data. This observation has led to a strong hypothesis that Sonoff/eWeLink might be actively implementing a system where the official mobile app receives priority status for data pushes. Think about it: when you open the app, it's actively communicating with the device or the cloud, requesting the latest information. The device, recognizing this direct, prioritized communication channel, then pushes the data. In contrast, background polling from integrations like the Sonoff LAN add-on, which operate on a lower priority, are either being ignored or are not triggering the necessary 'wake-up' calls on the device's end. This could be a strategic move by eWeLink to conserve bandwidth on their servers and devices, or perhaps a way to subtly encourage users to keep their official app active. It suggests a firmware-level differentiation: 'If it's the app, send the data NOW. If it's some other integration, wait until you have a reason or a specific command that bypasses the normal low-priority queue.' This is particularly relevant for devices running firmware version 1.3.0, which seems to be where many of these issues started cropping up. The fact that Home Assistant *is* successfully communicating with the eWeLink cloud is confirmed by seeing current data *within* the eWeLink app itself. This means the connection between your Home Assistant setup and the eWeLink servers isn't entirely broken; it's more that the device itself is becoming selectively communicative. It's a bit like having a phone that only rings when your mom calls, but ignores calls from your friends unless you specifically answer it. This prioritization mechanism means that our automations, which rely on real-time temperature data for things like climate control, smart fans, or alerts, become completely unreliable. If the data only updates when you manually open the app, then any automation triggered by a temperature change will either not fire or will fire based on outdated information. It's a critical flaw for anyone relying on accurate environmental data. The question remains: is this an intended feature, a bug, or a consequence of a firmware update that prioritized efficiency over broad integration compatibility? Whatever the reason, the eWeLink app's ability to instantly refresh the data is the smoking gun, pointing towards a deliberate hierarchy in data communication.

The Core Issue: Cloud vs. Local Polling with Firmware v1.3.0

Alright folks, let's zero in on what seems to be the *heart* of the problem: the interaction between the Sonoff LAN integration, the eWeLink cloud, and specifically, devices running firmware version 1.3.0. The long and short of it is that this firmware update appears to have fundamentally changed how devices handle data pushes, especially concerning temperature and humidity sensors. Previously, integrations like Sonoff LAN could reliably poll devices directly or via the cloud for updates at regular intervals. This allowed for near real-time data in Home Assistant, which is crucial for automation. However, with firmware v1.3.0, there's a strong indication that the device's firmware actively distinguishes between communications originating from the official eWeLink mobile app and those from third-party integrations like Home Assistant. The eWeLink app, when active, seems to have a privileged communication channel. When you open the app, it essentially tells the device (or the cloud relays the message) to push its latest sensor data *immediately*. This is why opening the app results in an instant update in Home Assistant – the data is finally being sent. For other integrations, however, the firmware seems to have implemented a more conservative approach. Instead of pushing data on every poll, the device might only push updates if a significant threshold is met (like the ±0.5°F delta we discussed), or perhaps it requires a specific, authenticated command that the standard LAN integration isn't sending or isn't able to send correctly anymore. This is likely a measure to conserve battery (though many Sonoff devices are mains-powered, the principle of reducing unnecessary transmissions can still apply) and to reduce the load on the eWeLink cloud infrastructure. The consequence for us, the users who rely on Home Assistant, is that our sensors appear to be broken. The `homeassistant.update_entity` and `homeassistant.reload_config_entry` calls in Home Assistant *do* update the 'Last Checked' timestamp, but this merely tells Home Assistant that it *tried* to get data. It doesn't guarantee that the *device* actually sent fresh data. If the device is withholding the data due to this new prioritization logic, Home Assistant will simply receive the same old cached value from the cloud. This creates a disconnect: Home Assistant thinks it's polling, the cloud *has* the latest data (because the app can fetch it), but the device isn't relaying it to Home Assistant's polling requests consistently. The Sonoff LAN add-on's struggles, reporting `getDataSync: disabled.json -> no data`, further underscore this point. It's trying to get data via its usual methods, but those methods are no longer effective because the device's firmware is behaving differently. It's not that the communication path is entirely severed, but the handshake for regular, non-app-initiated updates has changed, and it's not being done in a way that benefits local integrations. This firmware behavior is the key differentiator from previous working setups and explains why restoring older backups or trying standard troubleshooting steps often fails. The root cause lies in this firmware-level decision to prioritize the official app's data requests over those from other integrations, effectively making our local control less responsive and data less timely.

Potential Solutions and What to Do Next

So, guys, after all that troubleshooting and understanding the problem, what's the path forward? Unfortunately, with this specific issue, there isn't a single, magic bullet fix that works for everyone, largely because the root cause seems to be tied to firmware changes on Sonoff's end. However, we can explore a few strategies and workarounds. The most direct, albeit manual, solution is to simply open the eWeLink app on your phone whenever you need to ensure your Home Assistant has the latest sensor data. This leverages the app's priority status to force the update. While far from ideal for automation, it's a reliable way to get current readings when needed. For those who are comfortable with a bit more advanced configuration, exploring alternative integrations or firmware flashing might be an option. Some users have had success by reverting to older, known-stable firmware versions on their Sonoff devices if possible. This is risky, as it can sometimes brick devices, and it means missing out on potential security or feature updates. Always proceed with extreme caution and follow guides specific to your device model if you consider this. Another avenue is to look for alternative community-developed integrations or methods for accessing Sonoff data that might not be as affected by the recent firmware changes. Sometimes, different polling methods or communication protocols can bypass these prioritization issues. Keep an eye on the Home Assistant community forums and the GitHub repository for the Sonoff LAN integration; developers are often aware of these problems and may release updates or workarounds. You might find forks of the integration or entirely new projects that address these specific firmware quirks. In terms of Home Assistant configurations, while direct commands like `uiActive` don't seem to work reliably anymore, it's worth periodically checking for updates to the Sonoff LAN integration itself. The developers might find a way to mimic the app's communication or find a new API endpoint that the device responds to. Automations can also be adapted, though with less reliability. You could set up automations that *attempt* to refresh the entity more frequently, perhaps combined with a check to see if the 'Last Checked' timestamp has updated. If it hasn't updated within a certain timeframe, you could potentially trigger a notification to remind you to open the eWeLink app. Long-term, the best solution would be for Sonoff/eWeLink to provide an official way for local integrations to receive real-time data updates without requiring the mobile app. Until then, we're left navigating these workarounds. Keep discussing in the forums, share your findings, and stay patient, guys. The smart home community is resourceful, and solutions often emerge over time through collective effort. For now, understanding that firmware v1.3.0 and newer likely enforce a priority system favoring the official app is key to grasping why your temperature readings are acting up.