@Noraider If that is the case, would you mind trying to disable Smart Connect on the AX73 to observe if the speed is stable?

@straightup @Pixel1 Thank you both for following up on this thread and reporting an issue with the Archer C80 internet issue. Can you please email us the system log of the Archer C80 for further...

@Noraider Can we have the brand and model of the wireless adapter of the PC as well as the model of the Fire TV stick? Did you notice the 5G wireless link speed on the PC when the speed was normal...

@DHUMSHAN It seems your AX20 is a US version, so you are not allowed to install the firmware for an EU or JP version. You may verify that by checking the device label. If you have tried all the...

@Sam80 Thank you very much for getting back with the detailed info and sorry for missing your reply. This sounds abnormal. Can you please confirm if this Synology NAS is connected to the AXE75...

@Noraider Thank you for reaching out to us and welcome to the TP-Link community. I would confirm first if the speed is always stable at 80 Mbps when you connect the PC or Fire TV Stick directly to...