@Marvin_S I did do a factory reset on the test router, after which I imported a backup file of the main router. I added several entries and then deleted them without a problem. Then something very...

@Happyguy1 Where did you get the 1.3.2. firmware?

@eplante My screenshots are different from yours. My iPhone Tether version is 4.5.11(Build 502).

@criexe I would try the latest AX55 firmware to see if that fixes the issue. The firmware may be found here. It's only available on the TW site for now and it works for all regional versions...

@Marvin_S In examining this issue a little further, I did a factory reset on another AX55 and imported the backup file from the main router. On enabling Access Control, all of the main router's...

@eplante In my Tether app, the extenders are shown connected to both networks. The UI of the extenders also shows the connections on both bands and their speed. In the past, I have seen only one band...