@eHalai Sorry to jump in, is the Archer C7 V4 an EU version or US version? If it is an EU version, it only supports band 1 (36~48) for the 5GHz, which is designed to comply with that of CE...

@makuribu Sounds good. We generally assume this kind of speed issue could be caused by the cable, either the cable quality or the cable connectivity would do the trick.

@Papa_Nole That is great. Please let me know if there is any further issues.

@aarreddy Which Ethernet are you referring to, LAN or WAN? What are the devices connected to the AX73 via cables? How about the wireless connection, are both 2.4G and 5G stable? If only the LAN...

@Varun5 Did you reset the router to factory defaults after the firmware update? How did you test the speed, wired or wireless? Which frequency? We would like to investigate but we cannot reproduce...

@deocder So the update means you are on the macOS Big Sur 11.5.2 now, and there is no issue with the printing?