Optimize LAN performance by adjusting speed limits.
Optimize LAN performance by adjusting speed limits.
It concerns a simple local area network configuration. For networking hardware we only have a modem from Cisco and a router from Ralink. The devices connected range from 1 to 3 laptops, 1-2 phones via Wi-Fi, and 1 laptop using Ethernet. The problem is with file sharing through Windows shared folders—transfer speeds are extremely low (1 to 5 MB/s or up to 40 Mbps), which is about half the internet speed. I've adjusted various settings and reset components, but nothing resolved it. If I'm honest, it seems the internal LAN connection should exceed 100+ Mbps, yet it's only as fast as the internet, possibly limited by the router. Since all devices use SSDs, the issue isn't with data writing or reading speeds. The speed drops significantly between devices inside the LAN. Could anyone suggest a solution? Thanks in advance! P.S. Yes, I've tested Wi-Fi speed tests and confirmed it's not the wireless part causing the slowdown. I've also tried changing device combinations and switching to wired connections without success.
There might be various causes beyond network problems: 1. Do you aim to move files between two Windows Shared folders or from one shared folder to a local disk? 2. Are antivirus and endpoint protection software active on both devices (source and destination)? 3. Upon completing the transfer, observe slow performance in "Resource Monitor" on both machines and review CPU and HDD usage. 4. When you mention Windows Shared folders, are you using a mapped drive or the //<machine name>/Path method? 5. Are both computers part of the same Workgroup or Domain?