@Olaleke Here you can see the router models that have WDS/RE mode feature enabled.

@Blakes_burg Go through this knowledge base to troubleshooot your issue. There are certain scenarios and an action to take in that case.

@GC1 You probably have this kit - TL-WPA8631P KIT TL-PA8010P is probably a lower HW version and its FW can be found here. You can look for a sticker on the TL-PA8010P to double check its HW version.

@nappi1 Yes you can - two RE450 connected to your main router seems pretty normal solution.

@Olaleke Archer AX58 doesn't have a range extender mode, It only has two modes: The only option is to connect AX58 to your main router in AP mode using ethernet cable.

@FyzicalRuston To use this feature you have to update your router FW with the latest FW release - here. Here's how to update your router FW manually or automatically - Case 1 or Case 2. Then use this...