@SamBurd The user manuals are for reference, and they may only apply to the factory-released version. As you can find in the user manual, there is a note: "Note: Features available in the router may...

@AJ11 I'm wondering if this router was provided to you by your ISP. It seems to me that this is a model that supplies to the local service providers:...

@BJohn Hi Brian, after reading your description, I suggest checking the settings on your Plusnet Hub2, since the issue occurs after you replaced the BT modem with the Hub2. Is it too old? If...

@SamBurd @John588 If so, I guess Archer AX55 doesn't support Zero Wait DFS.

@jchaves2m This sounds more like an iOS issue but not a router issue. You can check similar posts in Apple community as this one, where there are some helpful suggestions, you can give it a try also....

@Krzych The link speed seems quite good on the Notebook, I'm wondering how did you test the actual speed when connecting to the AX55's 5G. Try getting another phone or laptop which also supports wifi...