Aqara hub Compairation（M1S）离线掉线 专题研究

Zigbee channel

我的環境不僅僅只有AQARA一家的網關，甚至我在同一個樓層，為了讓ZIGBEE子設備能有更好的訊號而在不同房間使用各自的E1。 但我觀察到，AQARA 的M2網關在一個ZIGBEE CHANNEL 20被使用的情況下，還是堅持使用20，這個情形發生在與TUYA的設備和AQARA E1共存。 建議AQARA 能夠讓使用者調整ZIGBEE CHANNEL，因為高密度的部署網關是比較適合環境中大量僅靠電池供電的子設備的環境。

我自己試過利用LIFESMART網關刻意去佔用CHANNEL 20成功驅趕一台M2 到CHANNEL 15，但是卻與樓下的M2 使用相同的CHANNEL。

https://community.aqara.com/pc/#/post/postDetail/2607

Zigbee channel

Zigbee uses 16 channels (from 11 to 26) in the 2.4 GHz throughout the world, 13 channels in the 915 MHz band in North America, and a single channel in the 868 MHz band in Europe. Some devices also use the 784 MHz band in China for Zigbee.



It is also worth pointing out that since Wi-Fi and Zigbee utilize the 2.4 GHz band, it is possible that Zigbee radios may face interference due to Wi-Fi devices, thereby degrading the signal quality of Zigbee network. However, channel numbers 1, 6, or 11 are generally occupied by Wi-Fi networks which imply that many Zigbee channels are interference-free. Specifically, channels 15, 20, 25 and 26 of Zigbee are always free and do not interfere due to Wi-Fi regardless of which Wi-Fi channel is utilized at any time. Therefore, when Zigbee radios face interference issues, they can be switched to these channels in order to maintain a stable network performance, data rate, and minimize latency. The Figure shown below illustrates the various frequency bands used by both Zigbee and Wi-Fi.

https://www.everythingrf.com/community/zigbee-frequency-bands

ZigBee and Wi-Fi Channels






please keep in mind that Zigbee channel 11 has nothing to do with 2.4GHz Wifi channel 11



https://www.metageek.com/training/resources/zigbee-wifi-coexistence/

Dealing with Neighbors

Most deployments have neighbors, and they typically run their own wireless networks, which have unpredictable channels. When you deploy your wireless network, use Chanalyzer + Wi-Spy to:

Identify what channels the neighbors are using
Choose the best channels for your Wi-Fi network
Perform throughput testing on your Wi-Fi network to determine what ZigBee channels they will interfere with
Deploy ZigBee networks on channels that don't receive interference from your Wi-Fi, or the neighbors Wi-Fi˜

排除干绕源

需要注意的是，干扰你wifi信号干扰

一是邻居的路由器
二是你自己和别人的蓝牙耳机、蓝牙键盘以及微波炉等，因为蓝牙和微波炉也工作在2.4GHz频段附近。
经过多次实验，改变不同的信道时，信号最少能增加5dBm以上。

2023-11-26  
https://community.aqara.com/pc/#/post/postDetail/2829

11月21日晚上家里路由器重启，之后m1s网关和子设备全部掉线，网关插拔后一直无法上线，无奈只能重置网关，之后家里的三键和单键开关，窗帘，智能灯均可以正常连接，唯独D1零火双键开关无法连接，试了各种办法都不行，最后询问客服。客服以产品过了保质期为由收95元一个售后费用，小红书上看到特别多的人遇到这种问题，维修费有50的，也有60多的。新的才多少钱。买的时候150多，绿米吃相也太难看了。

网上查了说是因为米家推送的固件bug导致的。这明显属于产品缺陷，理应召回（头回遇到更新固件导致产品报废的情况）。

m1s网关指令执行延迟高，多方法无法解决!
2023-12-10
家里三个m1s网关，ac+ap组网。客厅的网关之前频繁掉线，我把子设备由26个减到20个，现在不掉线了，但是该网关下的所有设备执行延迟很高，5-30秒不等。重启可以恢复正常，但不到一小时就会继续出问题。之前就是这情况，更换了一个新网关，仍然是这问题。如果是连续俩网关有质量问题，这也太巧了吧

https://community.aqara.com/pc/#/post/postDetail/2901

S
取消两个网关，只留一个，然后考虑加开关或插座做中继，应该更稳定，控制时延也应该最小。

M1S动不动所有配件就 未响应

homepod，买了appletv插网线,还是不行。
https://community.aqara.com/pc/#/post/postDetail/2955


网关连2.4g改下信道和工作模式。我是有线模式，一直很稳定。