@Cue555 It is possible you have two separate issues with your Satellite Decos. The one that is Ethernet wired might have negotiated 10Mbps over Ethernet connection, instead of 100Mbps or gigabit....

@BrianHo Any TP-Link consumer grade switch can do. I would recommend those with minimum features. Look for "unmanaged" switches. Also, make sure it is gigabit switch, because TP-Link still sells at...

@Froso See this document: General questions about Ethernet Backhaul feature on your Deco

@pedrot As much as I like my Deco mesh with M9 Plus, in your specific case you may find issues by coupling Deco and 4G router. I can see two potential problems: 1. This HUAWEI router has single...

@Boriy Boriy wrote @David-TP So it's all automatic and I don't need to configure anything after that. Good Thank you If you have devices on your home network that you configured with static IP...

@iWarSam You can do that with no issues. Just use correct terminology next time. In Deco world, there is Main Deco and all other Deco units are Satellite Deco. Access Point and Router terms are used...