Manufacturer and model directory

Ubiquiti network model troubleshooting

Choose the complete Ubiquiti model family before opening a fix. Model patterns are shown on every page, and unsupported code meanings are not copied between platforms.

Exact modelObserved symptomFirst safe testVerificationStop condition

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50 complete records in this directory

Reviewed records

50 exact answers

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Ubiquiti · DNS

Ubiquiti UniFi Cloud Gateway Ultra cannot open websites because DNS fails

Ubiquiti UniFi Cloud Gateway Ultra cannot open websites because DNS fails: resolver, filter, VPN and cache should be separated from a site or provider outage. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · 100 Mbps

Ubiquiti UniFi Cloud Gateway Ultra Ethernet link is limited to 100 Mbps or disconnects

Ubiquiti UniFi Cloud Gateway Ultra Ethernet link is limited to 100 Mbps or disconnects: every cable pair, wall jack, switch and port must negotiate the intended speed. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · firmware

Ubiquiti UniFi Cloud Gateway Ultra firmware update will not install

Ubiquiti UniFi Cloud Gateway Ultra firmware update will not install: exact model/hardware revision, stable power, storage and signed firmware are required. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · no internet

Ubiquiti UniFi Cloud Gateway Ultra has Wi-Fi but no internet

Ubiquiti UniFi Cloud Gateway Ultra has Wi-Fi but no internet: provider modem/ONT, router WAN address, DNS and one client should be separated. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · slow Wi-Fi

Ubiquiti UniFi Cloud Gateway Ultra internet or Wi-Fi is slow

Ubiquiti UniFi Cloud Gateway Ultra internet or Wi-Fi is slow: provider rate, wired router throughput, radio link and one service should be measured separately. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · parental controls

Ubiquiti UniFi Cloud Gateway Ultra parental controls or schedules are not working

Ubiquiti UniFi Cloud Gateway Ultra parental controls or schedules are not working: target identity, randomized MAC, time zone, DNS/VPN bypass and overlapping profiles should be separated. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · port forwarding

Ubiquiti UniFi Cloud Gateway Ultra port forwarding is not working

Ubiquiti UniFi Cloud Gateway Ultra port forwarding is not working: local service, firewall, reserved IP, double NAT, CGNAT and provider blocks should be proved in order. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · restarts

Ubiquiti UniFi Cloud Gateway Ultra restarts, freezes or overheats

Ubiquiti UniFi Cloud Gateway Ultra restarts, freezes or overheats: power supply, ventilation, load, firmware and hardware should be separated. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · double NAT

Ubiquiti UniFi Cloud Gateway Ultra shows double NAT or strict NAT

Ubiquiti UniFi Cloud Gateway Ultra shows double NAT or strict NAT: provider gateway/router mode, downstream router, CGNAT and local service state are different boundaries. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · VPN

Ubiquiti UniFi Cloud Gateway Ultra VPN client or server will not connect

Ubiquiti UniFi Cloud Gateway Ultra VPN client or server will not connect: provider/server, credentials, protocol, DNS, MTU, policy route and double NAT should be isolated. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · setup

Ubiquiti UniFi Cloud Gateway Ultra will not complete setup

Ubiquiti UniFi Cloud Gateway Ultra will not complete setup: modem/ONT provisioning, WAN type, app/account and cabling should be proved before resets. Scoped to UCG-Ultra, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · DNS

Ubiquiti UniFi Dream Machine Pro cannot open websites because DNS fails

Ubiquiti UniFi Dream Machine Pro cannot open websites because DNS fails: resolver, filter, VPN and cache should be separated from a site or provider outage. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · 100 Mbps

Ubiquiti UniFi Dream Machine Pro Ethernet link is limited to 100 Mbps or disconnects

Ubiquiti UniFi Dream Machine Pro Ethernet link is limited to 100 Mbps or disconnects: every cable pair, wall jack, switch and port must negotiate the intended speed. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · firmware

Ubiquiti UniFi Dream Machine Pro firmware update will not install

Ubiquiti UniFi Dream Machine Pro firmware update will not install: exact model/hardware revision, stable power, storage and signed firmware are required. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · no internet

Ubiquiti UniFi Dream Machine Pro has Wi-Fi but no internet

Ubiquiti UniFi Dream Machine Pro has Wi-Fi but no internet: provider modem/ONT, router WAN address, DNS and one client should be separated. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · slow Wi-Fi

Ubiquiti UniFi Dream Machine Pro internet or Wi-Fi is slow

Ubiquiti UniFi Dream Machine Pro internet or Wi-Fi is slow: provider rate, wired router throughput, radio link and one service should be measured separately. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · parental controls

Ubiquiti UniFi Dream Machine Pro parental controls or schedules are not working

Ubiquiti UniFi Dream Machine Pro parental controls or schedules are not working: target identity, randomized MAC, time zone, DNS/VPN bypass and overlapping profiles should be separated. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · port forwarding

Ubiquiti UniFi Dream Machine Pro port forwarding is not working

Ubiquiti UniFi Dream Machine Pro port forwarding is not working: local service, firewall, reserved IP, double NAT, CGNAT and provider blocks should be proved in order. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · restarts

Ubiquiti UniFi Dream Machine Pro restarts, freezes or overheats

Ubiquiti UniFi Dream Machine Pro restarts, freezes or overheats: power supply, ventilation, load, firmware and hardware should be separated. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · double NAT

Ubiquiti UniFi Dream Machine Pro shows double NAT or strict NAT

Ubiquiti UniFi Dream Machine Pro shows double NAT or strict NAT: provider gateway/router mode, downstream router, CGNAT and local service state are different boundaries. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · VPN

Ubiquiti UniFi Dream Machine Pro VPN client or server will not connect

Ubiquiti UniFi Dream Machine Pro VPN client or server will not connect: provider/server, credentials, protocol, DNS, MTU, policy route and double NAT should be isolated. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · setup

Ubiquiti UniFi Dream Machine Pro will not complete setup

Ubiquiti UniFi Dream Machine Pro will not complete setup: modem/ONT provisioning, WAN type, app/account and cabling should be proved before resets. Scoped to UDM-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · DNS

Ubiquiti UniFi Dream Machine Special Edition cannot open websites because DNS fails

Ubiquiti UniFi Dream Machine Special Edition cannot open websites because DNS fails: resolver, filter, VPN and cache should be separated from a site or provider outage. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · 100 Mbps

Ubiquiti UniFi Dream Machine Special Edition Ethernet link is limited to 100 Mbps or disconnects

Ubiquiti UniFi Dream Machine Special Edition Ethernet link is limited to 100 Mbps or disconnects: every cable pair, wall jack, switch and port must negotiate the intended speed. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · firmware

Ubiquiti UniFi Dream Machine Special Edition firmware update will not install

Ubiquiti UniFi Dream Machine Special Edition firmware update will not install: exact model/hardware revision, stable power, storage and signed firmware are required. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · no internet

Ubiquiti UniFi Dream Machine Special Edition has Wi-Fi but no internet

Ubiquiti UniFi Dream Machine Special Edition has Wi-Fi but no internet: provider modem/ONT, router WAN address, DNS and one client should be separated. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · slow Wi-Fi

Ubiquiti UniFi Dream Machine Special Edition internet or Wi-Fi is slow

Ubiquiti UniFi Dream Machine Special Edition internet or Wi-Fi is slow: provider rate, wired router throughput, radio link and one service should be measured separately. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · parental controls

Ubiquiti UniFi Dream Machine Special Edition parental controls or schedules are not working

Ubiquiti UniFi Dream Machine Special Edition parental controls or schedules are not working: target identity, randomized MAC, time zone, DNS/VPN bypass and overlapping profiles should be separated. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · port forwarding

Ubiquiti UniFi Dream Machine Special Edition port forwarding is not working

Ubiquiti UniFi Dream Machine Special Edition port forwarding is not working: local service, firewall, reserved IP, double NAT, CGNAT and provider blocks should be proved in order. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · restarts

Ubiquiti UniFi Dream Machine Special Edition restarts, freezes or overheats

Ubiquiti UniFi Dream Machine Special Edition restarts, freezes or overheats: power supply, ventilation, load, firmware and hardware should be separated. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · double NAT

Ubiquiti UniFi Dream Machine Special Edition shows double NAT or strict NAT

Ubiquiti UniFi Dream Machine Special Edition shows double NAT or strict NAT: provider gateway/router mode, downstream router, CGNAT and local service state are different boundaries. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · VPN

Ubiquiti UniFi Dream Machine Special Edition VPN client or server will not connect

Ubiquiti UniFi Dream Machine Special Edition VPN client or server will not connect: provider/server, credentials, protocol, DNS, MTU, policy route and double NAT should be isolated. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · setup

Ubiquiti UniFi Dream Machine Special Edition will not complete setup

Ubiquiti UniFi Dream Machine Special Edition will not complete setup: modem/ONT provisioning, WAN type, app/account and cabling should be proved before resets. Scoped to UDM-SE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · 100 Mbps

Ubiquiti UniFi Switch Pro Max 24 PoE Ethernet link is limited to 100 Mbps or disconnects

Ubiquiti UniFi Switch Pro Max 24 PoE Ethernet link is limited to 100 Mbps or disconnects: every cable pair, wall jack, switch and port must negotiate the intended speed. Scoped to USW-Pro-Max-24-PoE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · firmware

Ubiquiti UniFi Switch Pro Max 24 PoE firmware update will not install

Ubiquiti UniFi Switch Pro Max 24 PoE firmware update will not install: exact model/hardware revision, stable power, storage and signed firmware are required. Scoped to USW-Pro-Max-24-PoE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · restarts

Ubiquiti UniFi Switch Pro Max 24 PoE restarts, freezes or overheats

Ubiquiti UniFi Switch Pro Max 24 PoE restarts, freezes or overheats: power supply, ventilation, load, firmware and hardware should be separated. Scoped to USW-Pro-Max-24-PoE, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · 100 Mbps

Ubiquiti UniFi U6 Pro access point Ethernet link is limited to 100 Mbps or disconnects

Ubiquiti UniFi U6 Pro access point Ethernet link is limited to 100 Mbps or disconnects: every cable pair, wall jack, switch and port must negotiate the intended speed. Scoped to U6-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · firmware

Ubiquiti UniFi U6 Pro access point firmware update will not install

Ubiquiti UniFi U6 Pro access point firmware update will not install: exact model/hardware revision, stable power, storage and signed firmware are required. Scoped to U6-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · guest network

Ubiquiti UniFi U6 Pro access point guest network cannot reach devices, cast or print

Ubiquiti UniFi U6 Pro access point guest network cannot reach devices, cast or print: guest isolation is usually intentional; internet and local discovery are separate permissions. Scoped to U6-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · dead zones

Ubiquiti UniFi U6 Pro access point has weak signal or dead zones

Ubiquiti UniFi U6 Pro access point has weak signal or dead zones: building loss, access-point placement, band and mesh backhaul should be measured at the node location. Scoped to U6-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · restarts

Ubiquiti UniFi U6 Pro access point restarts, freezes or overheats

Ubiquiti UniFi U6 Pro access point restarts, freezes or overheats: power supply, ventilation, load, firmware and hardware should be separated. Scoped to U6-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · Wi-Fi drops

Ubiquiti UniFi U6 Pro access point Wi-Fi keeps disconnecting

Ubiquiti UniFi U6 Pro access point Wi-Fi keeps disconnecting: client, band, channel/interference, coverage, firmware and node backhaul should be isolated. Scoped to U6-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · device won't connect

Ubiquiti UniFi U6 Pro access point will not connect one device

Ubiquiti UniFi U6 Pro access point will not connect one device: one-client capability, security, band, DHCP, randomized address and access controls should be isolated. Scoped to U6-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · 100 Mbps

Ubiquiti UniFi U7 Pro access point Ethernet link is limited to 100 Mbps or disconnects

Ubiquiti UniFi U7 Pro access point Ethernet link is limited to 100 Mbps or disconnects: every cable pair, wall jack, switch and port must negotiate the intended speed. Scoped to U7-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · firmware

Ubiquiti UniFi U7 Pro access point firmware update will not install

Ubiquiti UniFi U7 Pro access point firmware update will not install: exact model/hardware revision, stable power, storage and signed firmware are required. Scoped to U7-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · guest network

Ubiquiti UniFi U7 Pro access point guest network cannot reach devices, cast or print

Ubiquiti UniFi U7 Pro access point guest network cannot reach devices, cast or print: guest isolation is usually intentional; internet and local discovery are separate permissions. Scoped to U7-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · dead zones

Ubiquiti UniFi U7 Pro access point has weak signal or dead zones

Ubiquiti UniFi U7 Pro access point has weak signal or dead zones: building loss, access-point placement, band and mesh backhaul should be measured at the node location. Scoped to U7-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · restarts

Ubiquiti UniFi U7 Pro access point restarts, freezes or overheats

Ubiquiti UniFi U7 Pro access point restarts, freezes or overheats: power supply, ventilation, load, firmware and hardware should be separated. Scoped to U7-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · Wi-Fi drops

Ubiquiti UniFi U7 Pro access point Wi-Fi keeps disconnecting

Ubiquiti UniFi U7 Pro access point Wi-Fi keeps disconnecting: client, band, channel/interference, coverage, firmware and node backhaul should be isolated. Scoped to U7-Pro, with the model boundary and safe stop points made explicit.

Open record
Ubiquiti · device won't connect

Ubiquiti UniFi U7 Pro access point will not connect one device

Ubiquiti UniFi U7 Pro access point will not connect one device: one-client capability, security, band, DHCP, randomized address and access controls should be isolated. Scoped to U7-Pro, with the model boundary and safe stop points made explicit.

Open record

Find your model

Model numbers covered, and where each one's answers are

Match the identifier on your appliance or device label to a row below. Ubiquiti answers here are scoped to these patterns, and a model outside them is deliberately not claimed rather than covered by a page that guesses.

FamilyModel numbersPublished specs
UniFi Dream Machine ProUDM-Pro3 researched
UniFi Dream Machine Special EditionUDM-SE3 researched
UniFi Cloud Gateway UltraUCG-Ultra3 researched
UniFi U7 Pro access pointU7-Pro3 researched
UniFi U6 Pro access pointU6-Pro3 researched
UniFi Switch Pro Max 24 PoEUSW-Pro-Max-24-PoE3 researched

Structured depth, not empty permutations

Every published record carries a direct answer, scope, ordered fixes, risk notes and sources.

Device and manufacturer hubs share a consistent record system, but each answer carries the relevant controls, fault boundaries, consequences and official support entry point for that platform.

See the publication gate