@Sunshine Thanks for your response and your suggestion Yups, my phone works on 5G. Just noticed this router is LTE cat4 I had tried your suggestion, and create manual profile: 1. Manual band...

Hi All, Appreciate your advice I was bought TL-MR6400 on July 2022 Start last month (October 2022), the signal strength always below 25% 1. Always in the same spot 2. Always using the same ISP event...