@Alexandre. "When the Deco is set to work under Access Point mode, you can wire satellite Deco to any Deco unit or the main modem/router". Simply put, does this mean all Decos can be wired directly...

Can I connect all Decos directly (wired or wireless) to the ISP modem/router, or there has to be 1 Deco serve as the main Deco?

Solla-topee wrote If the RE200 & Archer C54 (work as the Extender) are side by site, probably you could try a different location for C54/ RE200 to avoid the possible inteference? In extender mode,...

@Solla-topee Sorry to say but this is the fact, after changing the channel to 36, the RE200 works just fine, but another problem arises, besides RE200 I also have Archer C54 set as a range extender,...

Solla-topee wrote 1. The Wi-Fi channels can be changed in Router Wireless settings. Here is how to change channel on tp-link router for reference Changing Channel and Channel Width on a TP-Link...

@Srjsonu26 I have the same issue with RE200, the 5GHz band is very slow