Phone Calls And Voip - ZyXEL Communications V300 Series User Manual

Chapter 16 Troubleshooting
I cannot access the Internet anymore. I had access to the Internet (with the
V300), but my Internet connection is not available anymore.
1 Check the hardware connections, and make sure the LEDs and the LCD screen are
behaving as expected. See the Quick Start Guide and
2 Restart the V300.
3 If the problem continues, contact your ISP.
The Internet connection is slow or intermittent.
1 There might be a lot of traffic on the network. Check
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 V300 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 V300.
4 If the problem continues, contact the network administrator or vendor, or try one of the
advanced suggestions.

16.4 Phone Calls and VoIP

I cannot make VoIP calls.
Ensure that your V300 is set up as shown in your Quick Start Guide and
31.
Look at the LCD screen. If a SIP account is registered, its name appears here. If a SIP account
is not registered, No Reg displays.
If no SIP account is registered, do the following.
1 The V300's SIP settings may be misconfigured. Check your SIP settings and re-enter
them if necessary (see
2 If No Reg still displays, check your network settings (see
they are not correct, change them using information supplied by your ISP or network
administrator. If this does not help, contact your ISP or network administrator.
If a SIP account is registered, try to make the call. If you still cannot call out, do the following.
1 Check your DNS (Domain Name Service) settings (see
144
Section 6.3 on page 52 for details).
Section 2.2 on page 31.
Section 2.2 on page 31. If the V300
Section 2.2 on page
Section 5.5 on page
Section 5.5 on page 49).
V300 User's Guide
49). If