@Colson Hi, You could try to downgrade the firmware 1.5.3 back to 1.5.1 via the web interface: http://tplinkdeco.net https://static.tp-link.com/2020/202011/20201111/Deco_M5_V1_V2_V3_20201022.zip And...

@Fatinkl Hi, did you mean the power adapter of the Deco? May I know what happened to the original adapter? The power adapter is 12V ⎓ 1.5A DC output and you could search on the internet; Thank you...

@TWPS Hi, thanks for your feedback. For your case, I would like to collect some information and forward your case to the senior engineers for further help: 1. Can I have a picture of the network...

@TaurusMF Hi， thank you very much for your kind feedback. I would be glad to forward your case to the senior engineers for further assistance and please have a check of your email box later; Thanks a...

@RZV Hi, there is a new firmware that could fix this issue, and please have a check of your message box. Thank you very much,

@elbhat Yes, and we have another firmware that could fix this issue and please have a check of your message box; Thank you.