Unifi Controller Setup

On this page we will be going through all the possible variables in the settings-tab in your Unifi controller. This is a work-in-progress by MPC

How to get to your site's settings:

Unifi Controller settings page, settings here are global across the site.

To access the settings in the controller click the gears icon in the lower right of the controller screen.

Site Name:

Here you can tell the controller what name your site should be displayed as. Standard it's marked as default, but especially when having multiple physical networks in a single controller, it can be useful to change this.


The country that the site resides in, defines a few things:

  • Each country has its own regulations regarding maximum output power and available channels. The US for instance, allows a maximum total power output of 36 dbi, while the Netherlands only allows 20 dbi. This is similar as with channels on both the 2.4 and 5 ghz radio's.
  • It also is for assigning the location in your controller, so that you can distinguish between instances.

You might be thinking "well, i'll just change my settings to another country, so that I can crank up my power on my access points." But because each country comes with it's own channels, this usually doesn't work. Also keep in mind, when designing a network for use in situations where you might expect frequent visitors from other countries, that their equipment might not support all channels that are common in your country.

Time Zone

Here you can select the time zone your network is in. This impacts the scheduling feature for updating firmware.

Advanced Features:

Enabling this feature will unlock the following settings:

  • Airtime fairness
  • Band steering
  • Minimum RSSI
  • Load Balancing

Speed Test

I don’t recommend leaving this enabled unless you are diagnosing ISP issues. It can generate excess bandwidth usage

Default (LAN)

This will be the management LAN, I recommend reserving this for only unifi gear and other items pertaining to site administration.


Friendly name of network


Corporate This network will be allowed to talk to any other network, subnet, & VLAN’s by default. This pulls its firewall rules from LAN IN, LAN OUT, & LAN LOCAL groups. Guest This network is isolated from other VLAN’s & networks. It has internet access and can talk to the USG for things like DHCP & ect…Basicly internet only. This pulls its firewall rules from GUEST IN, GUEST OUT, & GUEST LOCAL groups VLAN Only This is generates a VLAN tag only. No routing is done by the USG. This is used to provide point-to-point tunneling through the network without any routing. This would be used to tunnel a connection across the network such as a remote WAN, a private network with another router, ect….


The physical interface connected on the USG Recommended: LAN


This is the network ID tag that keeps traffic separate from all other traffic on the same switch/network


(Only available in Corporate & Guest modes)

The gateway created in the USG for a network. Format is “Network-Address/Mask-Bits”. This determines the number of available IP’s or the ‘size’ of the the subnet. This can vary from 2 up to 16,777,214 host. Example: “” This is a subnet with the gateway of that can host up to 253 clients (254 including the gateway itself) If the Mask Bits part is confusing use a Subnet Calculator or try different settings a use the Unifi built in calculator to check your settings (should pop up below ‘Gateway/Subnet” after a valid subnet is entered.

Domain Name


IGMP Snooping

Recommend enabling this on all guest connections. It may be wise to enable this on almost all networks unless you have problems with multicast devices. The benefit of enabling IGMP Snooping is that multicast traffic goes only where it belongs. If nothing on that port has joined that group, the switch will prune it. In a cascaded environment, this can significantly reduce inter-switch traffic. And likewise keep access links clear of traffic hosts don't want.


DHCP Server - USG will provide DHCP (Recommended) DHCP Relay - USG will forward DHCP request to and alternate DHCP server (like a domain controller) None - Disable DHCP, static or self assigned addresses must be used

DHCP Range

The range of IP’s handed out by the USG NOTE: After entering the Gateway/Subnet a button should appear to “Update DHCP Range” clicking this should auto populate the DHCP range with a reasonable number of addresses (Normally leaving a few free for static’s) however you can modify this to suit your needs at any time.

DHCP Name Server




DHCP Lease Time

The amount of time before a DHCP lease expires IP addresses are reserved/leased to a client and are stored in the USG so if a client disconnects and reconnects they will receive the same IP as last time. While the lease is active that address won’t be given to another client. Long lease times on public/guest networks can result in IP’s being reserved for a client that is no longer online making it unavailable to a new client who might need an IP. However setting this too short can generate a lot of extra work for the USG and can also result in devices hopping around between IP’s unnecessarily. Recommended settings: Guest networks 2-8hrs (7200-28800sec) Client networks 8-24hrs (28800-86400sec)

DHCP Gateway IP


DHCP Guarding

DHCP guarding configures Unifi switches to restrict DHCP servers to the IP’s listed. This can prevent malicious or accidental DHCP servers (someone plugging their router into a LAN port and causing clients to join their network) Recommend enabling and including the Gateway for the network as a trusted DHCP server.


Enables UPnP on this network. Recommend leaving disabled unless you plan to use programs that need UPnP vs manual port forwards (Torrents, some games, ect…)

  • Default LAN
    • Unifi Infrastructure
    • Default UniFi Network
  • Admin - HVAC PC’s, IP Cameras, Admin PC’s, content players, etc….
    • Purpose: Corporate
    • VLAN: 10
    • Gateway/Subnet:
    • IGMP Snooping: Enabled (Disable if you have issues with LAN video streaming etc..)
    • DHCP Range: -
    • DHCP Lease Time: 86400sec (24hrs)
    • DHCP Guarding: Enabled -
    • UPnP: Disabled
  • Guest - Public guest access via hotspot page
    • Purpose: Guest
    • VLAN: 3
    • Gateway/Subnet:
    • IGMP Snooping: Enabled
    • DHCP Range: Auto (or -
    • DHCP Lease Time: 14400sec (4hrs)
    • DHCP Guarding: Enabled -
    • UPnP: Disabled
  • Client A - Private client network example
    • Purpose: Guest
    • VLAN: 100
    • Gateway/Subnet:
    • DHCP Range: Auto (or -
    • DHCP Lease Time: 86400sec (24hrs)
    • DHCP Guarding: Enabled -
    • UPnP: Disabled (Enable upon request)
  • Client B - Private client network example
    • Purpose: Guest
    • VLAN: 101
    • Gateway/Subnet:
    • DHCP Range: Auto (or -
    • DHCP Lease Time: 86400sec (24hrs)
    • DHCP Guarding: Enabled -
    • UPnP: Disabled (Enable upon request)
  • Etc…

Add Client networks coping the above settings as needed. Up to 64 total VLAN’s can be created.

Wireless Networks



  • guides/new_unifi_controller.txt
  • Last modified: 2018/12/14 22:19
  • by mpc