You are using a standalone DHCP server, such as running one on a Windows Server, instead of using the DHCP server on the ZyXEL.Ī computer or other device was manually configured to use a static IP address and the ZyXEL is not aware of that static IP address assignment. The ‘lock-up’ can occur due to one or more of the 3 situations below: When this feature is enabled, the ZyXEL can appear as if it is locked up when it actually is not. It is a security feature that prevents a hacker from walking into your office, plugging their computer into the your firewall or switch, & gaining access to your network. This feature will not allow devices that are not getting an IP address from the ZyXEL DHCP server to access the internet or ping the ZyXEL.
We recommend that you do not enable the IP/MAC Binding feature on the ZyXEL unless you are 100% aware of your network configuration: The firewall intermittently interferes with phone registration but it does not when the changes below are made. SIP ALG is enabled by default, but it is easy to disable. In comparison, a Linksys EA6900 costs $150 on Amazon and doesn't have BWM or many features needed for a small-business environment.
The least expensive model in the series is the USG20-VPN, but it does not have WiFi.īoth models still have the same Bandwidth Management features that the pricier models have, but they only cost around $180 for the USG20-VPN or $242 for the USG20W-VPN on Amazon and other online stores.
This feature is rare to find on small-business grade firewalls at an economical price-point. These firewalls have a powerful Bandwidth Management (BWM) system, which customers have great success using to prevent or resolve many call quality problems.īWM allows you to reserve the exact amount of bandwidth the devices need.