Declutter Your Connection
Optimize Steam's Software
Update the Network Driver
Optimize Your Data Connection
Check Server Proximity
Try Server Relocation
Clear Steam Download Cache
Disable Your Antivirus Software and Firewall
Turn Off Your VPN
When many programs other than Steam have trouble running, the network driver may be outdated or damaged. You need to find and replace updated Windows drivers using several ways: Use Windows Update, Use the Manufacturer's Website, Use Device Manager, Use DriverView and Use Command Prompt
Declutter Your Connection Optimize Steam's Software Update the Network Driver Optimize Your Data Connection Check Server Proximity Try Server Relocation Clear Steam Download Cache Disable Your Antivirus Software and Firewall Turn Off Your VPN