@phil75 Here's the procedure for recovering a bricked TP-Link router. If that doesn't help, your best bet is your local support.

@Qball17 Read this blog for start. Onemesh is a TP-Link proprietary technology and that's why it's not compatible with the Easymesh standard. However, you have a chance to make them work together -...

@Pierre-Jean Here's what's the purpose of the IoT network implementation. Understanding IoT network and isolation - here and here.

@fdsgwhfdsaab You've missed the important notice on the Firmware download page: "IMPORTANT: Model and hardware version availability varies by region. Please refer to your TP-Link regional website to...

@Sunny_5G Here you go - Archer C6(EU)_V4_1.14.30 Build 250729

@PolarBear64 You can refer to this FAQ.