@kevin_z I just bought the AX50, hoping it will fix the problem and it faces the exact same issue. Connection speed at maximum for a couple of hours then drops to 250Mbps. What's happening with your...

Hi @Kevin_Z, I can't seem to install this firmware on my C5400. I think this firmware is for the C5400X. Please send me the link to download the firmward for ArcherC5400 v2.0. Thanks.

Please offer a solution ASAP. I am thinking of upgrading to your new wifi 6 routers but afraid to buy TP-Link products because of this issue.

@Kevin_Z yes, I am still having the same issue where connection speed drops by more than half after a couple of hours. I have tried the wifi solution offered but it didn't work. Can I please have the...

@Diogeles did you receive the firmware?