@deco_bhilai
Hi, Thanks for the feedback.
Can I have more details about the speed decrease on the kitchen Deco? What is the current speed you could get from kitchen Deco( via Ethernet connection or 5Ghz)? How about the original speed?
Since you mentioned the firmware upgrade, Did the Deco App have the correct Topology before the 1.5.5 firmware upgrade?
And would a restart of the kitchen Deco improve the current speed?
If possible, please also help me submit the APP log on the APP:https://community.tp-link.com/en/home/forum/topic/581574?replyId=1132466
Wait for your reply.
Best regards.