@Nvb2 That's correct. For only 1x or 2x EAP683 LR EAPs (home network), I would recommend to get your initial choice switch - TL-SGP105PP-M2.

@JoseManuel22 You can check your WAN port IP address here:

@nettle Only a TP-Link representative can answer this question. Here's how to contact your local tech support.

@del1980 Here's the support page for VR400 v2.

@SmokedSalmon342 VX1800v doesn't have a range extender mode implemented but you can configure it as an access point using this guide.

@AndrewMaher201 Try changing the wireless channel and check the signal strength. For 2.4 Ghz use 1,6 or 11 - these are the non-overlapping channels. You can go through this guide for optimal router...