User's Manual
Table Of Contents
- Preface
- Product Overview
- Installation
- Configuration
- Web-based Configuration Utility
- Internet Connection Setup Wizard (3G Mode)
- Manual Configuration (3G Mode)
- Internet Connection Setup Wizard (WAN Mode)
- Manual Configuration (WAN Mode)
- Wireless Settings
- Network Settings
- Virtual Server
- Port Forwarding
- Application Rules
- QoS Engine
- Network Filters
- Website Filters
- Firewall Settings
- Advanced Wireless Settings
- Wi-Fi Protected Setup
- Advanced Network Settings
- Administrator Settings
- Time Settings
- E-mail Settings
- System Settings
- Update Firmware
- DDNS
- System Check
- Schedules
- Device Information
- Logs
- Statistics
- Internet Sessions
- Wireless
- Support
- Web-based Configuration Utility
- Wireless Security
- Connect to a Wireless Network
- Troubleshooting
- Wireless Basics
- Networking Basics
90D-Link DIR-412 User Manual
Section 6 - Troubleshooting
3. Why can’t I connect to certain sites or send and receive e-mails when connecting through my router?
If you are having a problem sending or receiving e-mail, or connecting to secure sites such as eBay, banking sites,
and Hotmail, we suggest lowering the MTU in increments of ten (Ex. 1492, 1482, 1472, etc).
Note: AOL DSL+ users must use MTU of 1400.
To nd the proper MTU Size, you’ll have to do a special ping of the destination you’re trying to go to. A destination
could be another computer, or a URL.
• Click on Start and then click Run.
• Windows
®
95, 98, and Me users type in command (Windows
®
NT, 2000, and XP users type in cmd) and
press Enter (or click OK).
• Once the window opens, you’ll need to do a special ping. Use the following syntax:
ping [url] [-f] [-l] [MTU value]
Example: ping yahoo.com -f -l 1472