- Networks
- Video intercoms
Error 108 / 908 / 910
Fermax Error 108 / 908 / 910 video intercom: WiFi failure
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
On Fermax terminals using DuoxMe, error codes 108, 908 and 910 mean a WiFi monitor cannot join the selected network (use 2.4 GHz, check for 906 on bad password or 910 on blocked NTP) or a Connect 4G outdoor panel lost internet.
Safety first
Stop and check this first
- Do not use open passwordless WiFi, WPA2-Enterprise or an isolated guest network: Fermax states that WiFi monitors require 2.4 GHz with WPA2 or WEP encryption and an active DHCP server.
Safe checks you can perform
- Confirm a 2.4 GHz network and retest the password (watching for 906)
- Restart the router and test pairing with a shared mobile hotspot
- Request NTP access for error 910 or report a 4G Connect outage
Leave these tasks to a qualified professional
- Do not attempt this professional task: Verify communal 4G Connect panel status or escalate to Fermax
- Do not attempt this professional task: Check 2.4 GHz WiFi settings and required outbound firewall ports
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Verify communal 4G Connect panel status or escalate to Fermax
What they doFor a 4G Connect terminal, or when a WiFi monitor also fails on a mobile hotspot, the professional checks the communal outdoor installation and coordinates diagnosis with Fermax through DuoxMe.
They must show youwhether the indoor unit is a WiFi monitor or 4G Connect terminal and its local communication with the outdoor panel.
In writingterminal model, hotspot or panel test results and reference details for the Fermax support escalation.
Check 2.4 GHz WiFi settings and required outbound firewall ports
What they doThe technician verifies a 2.4 GHz WPA2 or WEP network with DHCP enabled, guest isolation disabled, and outbound access open on TCP 8883 (MQTT), TCP 443/80 (HTTPS/HTTP), UDP 123 (NTP) and UDP/TCP 53 (DNS).
They must show youthe monitor pairing result on a verified 2.4 GHz network or test mobile hotspot.
In writingcodes shown in the app and on screen (108, 906, 908 or 910), router model and checked network parameters.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Confirm a 2.4 GHz network and retest the password (watching for 906)
- Who:
- you, setting up your Fermax WiFi monitor with the DuoxMe app on your smartphone.
- How:
- forget the WiFi network on your phone and reconnect by typing the password to verify it; before starting setup (especially on iOS), switch the phone manually to the 2.4 GHz band and note whether 906 or 910 appears on the monitor screen.
- Result that matters:
- rule out a 5 GHz band mismatch or mistyped password and identify any on-screen subcode.
- If the monitor pairs after switching to 2.4 GHz and confirming the password:
- keep that network configuration.
- If 108, 908 or 910 remains:
- restart your WiFi router for a few seconds and proceed to the mobile hotspot test.
- Evidence to keep:
- the 2.4 GHz SSID selected and whether error 906 or 910 appeared on the monitor display.
Evidence: Error code 108 / 908 / 910 pairing · What are the network configuration requirements for connecting a WiFi monitor?
Restart the router and test pairing with a shared mobile hotspot
- Who:
- you, with access to your home router and a smartphone able to share a WiFi hotspot.
- How:
- turn the WiFi router off, wait a few seconds, switch it back on and retry; if a WiFi monitor still fails, temporarily share a smartphone's WiFi hotspot and attempt to pair the monitor to that shared network instead.
- Result that matters:
- establish whether the monitor can connect to WiFi normally while your home router blocks it.
- If the monitor connects to the shared mobile hotspot:
- review router settings (DHCP, guest isolation or firewall) with your ISP.
- If the monitor cannot join the mobile hotspot either:
- contact support in DuoxMe via Settings > General tab > Contact Fermax.
- Evidence to keep:
- the mobile hotspot pairing outcome and the make and model of your home router.
Evidence: Error code 108 / 908 / 910 pairing · What are the network configuration requirements for connecting a WiFi monitor?
Request NTP access for error 910 or report a 4G Connect outage
- Who:
- you, depending on whether your WiFi monitor displays 910 or you use a 4G Connect terminal.
- How:
- if 910 appears on the monitor screen (reported on certain Sercomm and Sagemcom routers), ask your ISP to enable NTP (UDP port 123); if you have a 4G Connect terminal, message support via DuoxMe > Settings > General tab > Contact Fermax.
- Result that matters:
- address router NTP blocking with the ISP or initiate a support check on the building's 4G Connect panel.
- If your ISP enables NTP and pairing succeeds:
- confirm that the home shows online in DuoxMe.
- If the error persists or affects a communal 4G Connect panel:
- await follow-up from Fermax support or your installer.
- Evidence to keep:
- ISP confirmation regarding NTP/firewall ports or the support request sent from the DuoxMe General tab.
Evidence: Error code 108 / 908 / 910 pairing · What are the network configuration requirements for connecting a WiFi monitor?
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Networks
- Brand
- Fermax
- Product type
- Video intercoms
Known code variants
- Código de error 906
- Código error 108
- Código error 908
- Código error 910
- Error 910 en monitor Fermax
- Error code 108
- Error code 906
- Error code 908
- Error code 910
- Fermax pairing error 910
What it means
Fermax's official 'Error code 108 / 908 / 910 pairing' page and its network requirements article distinguish between WiFi monitors (VEO, VEO-XS, VEO-XL, IRIS) and 4G Connect terminals. On a WiFi monitor, these codes appear when the unit cannot join the WiFi network specified in DuoxMe; the monitor screen also shows 906 for a wrong password or 910 when the router blocks NTP. Other models may differ, and these codes alone never prove that hardware is defective.
Warnings and stop conditions
- Lowsource verified
Do not use open passwordless WiFi, WPA2-Enterprise or an isolated guest network: Fermax states that WiFi monitors require 2.4 GHz with WPA2 or WEP encryption and an active DHCP server.
Evidence: What are the network configuration requirements for connecting a WiFi monitor?
Symptoms and causes
Probable causes · in order
- 5 GHz band selected or wrong WiFi password (error 906)Common
The WiFi monitor supports 2.4 GHz networks with WPA2 or WEP and DHCP enabled; on iOS the app auto-fills the phone's current network (often 5 GHz), while an incorrect password also displays error 906 on the monitor.
Evidence: Error code 108 / 908 / 910 pairing · What are the network configuration requirements for connecting a WiFi monitor?
- Router blocking the NTP time server required for TLS (error 910)Possible
If error 910 appears on the monitor screen, the router is blocking access to the NTP server (UDP port 123) needed for a secure link, an issue Fermax notes on certain Sercomm and Sagemcom routers.
Evidence: Error code 108 / 908 / 910 pairing · What are the network configuration requirements for connecting a WiFi monitor?
- Communal 4G Connect outdoor panel offlinePossible
On a 4G Connect indoor terminal without built-in WiFi, error 108, 908 or 910 indicates that the building's Connect outdoor panel has lost its internet connection.
Evidence: Error code 108 / 908 / 910 pairing
Virtual technician
Does Error 108 / 908 / 910 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Código error 108 / 908 / 910 emparejamiento
Fermax · 2026 · official_doc
- 2
Error code 108 / 908 / 910 pairing
Fermax · 2026 · official_doc
- 3
¿Cuáles son los requisitos de configuración de red para conectar un monitor WiFi?
Fermax · 2026 · official_doc
- 4
What are the network configuration requirements for connecting a WiFi monitor?
Fermax · 2026 · official_doc
Was this entry useful?