
It's around 15โ20 meters and three walls from the router to the apartment's back room. Two other houses sit "windows to windows" to mine, and my router's signal was simply disrupted by them. I spent a considerable amount of time trying to resolve the issue of poor Internet by attempting to replace the wireless router, upgrade the antennas, switch channels, relocate the router, etc. The change was negligible. As soon as I heard about Powerline technology, I went out and bought the TL-WPA4220KIT. Complete resolution of the issue (higher real speeds measured).

Enhance Your WiFi Range with TP-Link TL-WPA4220KIT 300Mbps AV500 Powerline WiFi Extender Start Kit
37 Review

High Gain Wireless Network Adapter - TP-Link Nano USB Wifi Dongle with 150Mbps Speed for PC Desktops and Laptops. Compatible with Win10/8.1/8/7/XP Linux 2.6.18-4.4.3, Mac OS 10.9-10.15 (TL-WN722N)
46 Review

TP Link TL WN823N 300Mbps Wireless Adaptor
55 Review

Enhance Internet Speed with TP-Link AC1200 Wireless Dual Band USB Adapter (Archer T4U V1)
40 Review

๐ StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review

๐ StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review

UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
11 Review

๐ USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review