@tudy25 Ok, didn't know that. Have You contacted support?

@tudy25 Paste the full firmware version, I'm interested whats the number in the brackets?

@tudy25 What region version is Your current firmware? Please paste the full line. As if needed, I have also 1.5.5 Build 210219 Rel.35914n(4555) (this fixes 1.5.3 -s multicast issues) and does not...

@tudy25 You don't have to use OneMesh and 1.5.7 more stable than 1.5.3. And there are different versions, seems EU is 4555, US is 5553, I found 5255 - (1.5.0 Build 201022 Rel.53112n(5255), added.

@Vedia https://www.tp-link.com/en/support/download/archer-c80/#Firmware Archer C80(EU)_V1_210308 https://static.tp-link.com/2021/202104/20210407/Archer%20C80(EU)_V1_210308.zip But this is for EU...

@Kevin_Z But the C80 is not listed under TP-Link OneMesh Devices list.