Tapo H100 hub becomes slow

So I have twin Tapo hubs, one upstairs and one downstairs.
Upstairs Hub connected to 8 wall switches, 5 temperature sensors and 6 motion sensors.
Downstairs Hub connected to 6 wall switches, 2 temperature sensors and 1 motion sensor.
I have to power cycle the hubs at least twice per day to keep everything running smoothly.
After a power cycle everything works well, and the sirens on the hubs activate immediately.
After several hours everything slows up, automations to the light switches become very slow, and the sirens will not sound.
I've tried using Tapo smart activations, Alexa routines, and also Home Assistant Green automations.
A simple 'turn on light switch via a motion sensor seems the worst. Home Assistant was reporting 5 seconds to run a automation. After a power cycle that drops to less than 0.5 of a second.
Both Hubs are V1.2, trued full resets, tried swapping them around, replaced one hub with a new one, nothing seems to help except power cycles.
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Please check if your automation is being tagged with a Tapo icon, indicating it is a Local Smart automation. The local smart rule should have better response times compared to the cloud-based rules. *Local smart supports devices (hub-required device) connected to the same hub. If you add two sensors that are connected to different hubs in one rule, then the local smart cannot be created.
If your device meets the requirements for creating a local smart, but local smart is not created successfully, we have an optimized firmware for you to try, which may improve the situation.
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Please check the signal strength of the hub and the sensor. If the connection is weak, follow the tips in this article to improve it. How to improve the connection stability of my Hub and its sub-devices
Besides the Tapo hubs, how many devices are connected to the same 2.4GHz Wi-Fi network?
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Both upstairs and downstairs H100 hubs have a very strong signal to my router, -37rssi and -44rssi
All connected Tapo devices have excellent signal to the hubs, 3 green bars and weak interference.
This morning before a power cycle my downstairs hub took 8 seconds to command a Tapo s210 light switch.
After power cycling the hub the s210 switch responded instantly via automation, and Alexa voice commands.
My system as follows.
Full fibre 1 gig internet connection, solid stable connection.
TP Link AX5400 router downstairs with AX3000 upstairs as a mesh extension.
Ethernet connected TV, Apple TV, Sky TV, AV Receiver, Blu Ray player, Desktop PC, CCTV system.
Philips Hue hub with 35 Philips devices.
Hive central heating system
TaHoma hub for blinds
10 Alexa Echo smart speakers connected to 5ghz Wi-Fi
1 Laptop computer connected to 5ghz
Connected to 2.4ghz
Eufy vacuum cleaner x1
SwitchBot water leak sensors x4
Smartlife devices x5
Tapo lightbulbs x4
Tapo S210 switches x6
Tapo S220 switches x4
Tapo motion sensors x7
Tapo temperature and humidity sensors x7
Tapo plugs x25
Tapo Buttons x6
Tapo indoor cameras x4
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Can you check what's the exact model of your router? The AX5400 or AX3000 should be the router wireless link speed, not the model.
The supported devices of each wireless band is limited on every router. Overload might cause a series of connectivity issues.
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TP-Link Archer AX72 AX5400Mbps WiFi 6 Router
TP-Link RE700X WiFi 6 AX3000Mbps WiFi Extender
connected in mesh mode
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The number of your 2.4GHz devices may have reached the maximum load that your router can support. We recommend turning off some 2.4GHz devices and switching the 2.4GHz channel to a less congested one, like 1, 6, or 11. *It's best to download a network analysis app to test the actual wireless environment situation around your home, to determine which channel is less crowded.
After making these adjustments, rerun the automation and check if similar issues persist.
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i have used inssider to determine the best channel to use in conjunction with my zigbee network and neighbours to find the best cleanest channel on 2.4 ghz which in my case is Channel 1
The spec for my router says capable of 128 devices on 5ghz and 96 on 2.4ghz, do Ethernet devices count separately?
I can't really remove any 2.4ghz devices , so would I be better to buy a AXE5400?
Does this router have better overall capacity, and is the processor better?
Tether app is listing the following
91 devices on 2,4ghz
23 devices on 5ghz
19 devices Ethernet wired
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The data I found might be from an unupdated document. AX72 should be able to handle over 64 clients per wireless band. However, you do have a significant number of wireless devices, and we cannot dismiss the possibility that this may be contributing to the issue.
To assist with this case, a specialist will help to follow it up through email. Please check your inbox later to confirm. If the email you used to register for the TP-Link community is not your contact email or you cannot access it, please send me your contact email through private message.
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Further testing revealed as well as automations becoming slow, both my H100 hubs keep losing connection at random becoming unavailable and then reconnecting to my router. I can see this in Home Assistant. Obviously all my hub connected devices go offline when the hubs go offline Automations saved in the Tapo app smart automations seem to run properly.
Today I'm disabling the auto update on both my hubs just to see if that makes any difference to the unstable connections
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