ZyXEL NBG-318S 用户指南

Chapter 23 Troubleshooting

NBG-318S User’s Guide

1 Check the hardware connections, and make sure the LEDs are behaving as expected. See 

the Quick Start Guide.

2 Make sure you entered your ISP account information correctly in the wizard. These 

fields are case-sensitive, so make sure [Caps Lock] is not on.

3 If you are trying to access the Internet wirelessly, make sure the wireless settings in the 

wireless client are the same as the settings in the AP. 

4 Disconnect all the cables from your device, and follow the directions in the Quick Start 

Guide again. 

5 Go to Maintenance > Sys OP Mode > General. Check your System Operation Mode 

setting. 
• Select Router (Ethernet WAN) if your network is configured to access the Internet 

through an Ethernet connection to a DSL or cable modem.

• Select Router (HomePlug WAN) if your network is configured to access the Internet 

through a HomePlug connection.

6 If the problem continues, contact your ISP.

V

I cannot access the Internet anymore. I had access to the Internet (with the 
NBG-318S), but my Internet connection is not available anymore.

1 Check the hardware connections, and make sure the LEDs are behaving as expected. See 

the Quick Start Guide and 

2 Reboot the NBG-318S.
3 If the problem continues, contact your ISP. 

V

The Internet connection is slow or intermittent.

1 There might be a lot of traffic on the network. Look at the LEDs, and check 

. If the NBG-318S is sending or receiving a lot of information, try closing 

some programs that use the Internet, especially peer-to-peer applications. 

2 Check the signal strength. If the signal strength is low, try moving the NBG-318S closer 

to the AP if possible, and look around to see if there are any devices that might be 
interfering with the wireless network (for example, microwaves, other wireless 
networks, and so on).

3 Reboot the NBG-318S.
4 If the problem continues, contact the network administrator or vendor, or try one of the 

advanced suggestions.

• Check the settings for bandwidth management. If it is disabled, you might consider 

activating it. If it is enabled, you might consider changing the allocations. 

• Check the settings for QoS. If it is disabled, you might consider activating it. If it is 

enabled, you might consider raising or lowering the priority for some applications.