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Make sure your SIP account is registered and your SIP service plan is valid. Use the System Monitor > VoIP
4
Status screen to check the account Registration status.
Make sure your SIP server settings (in the VoIP > SIP > SIP Service Provider and the VoIP > SIP > SIP
5
Account screens) use the correct information from your SIP service provider. For example, your SIP
service provider name, SIP account and password.
Make sure your phone settings (in the VoIP > Phone > Phone Device screen) are correct.
6
Contacting the SIP server administrator and make sure your SIP server isn't down.
7
45.8 UPnP Problems
My computer cannot detect UPnP settings from the Zyxel Device.
Make sure that UPnP is enabled in your computer. For Windows 10, see
1
On the Zyxel Device, make sure that UPnP is enabled on the Network Settings > Home Networking >
2
UPnP screen. See
Disconnect the Ethernet cable from the Zyxel Device's Ethernet port or from your computer.
3
Reconnect the Ethernet cable.
4
Restart your computer.
5
45.9 Getting More Troubleshooting Help
Search for support information for your model at
support
and
Chapter 45 Troubleshooting
Section 10.4 on page 374
community.zyxel.com
for more troubleshooting suggestions.
AX/DX/EX/PX Series User's Guide
for details.
https://service-provider.zyxel.com/global/en/tech-
513
Section 10.12 on page
386.
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Troubleshooting
