Deco X55 – “No internet connection”
ISP – Brillband (via the CityFibre network)
FTTP/FTTH 910 Mbps
Connection type details supplied by ISP – Dynamic IP/DHCP (no VLAN required) IPv4 only
ONT (modem) Calix 810G Gigapoint V2
ONT connected to Deco X55 via Ethernet.
Got this yesterday to try and solve signal issues (as OpenMesh still does not support Ethernet back-haul)
First, switched off the ONT and unplugged the optical cable for 10 minutes.
Next, plugged back in the optical cable, and connected the 1st Deco unit to the ONT via CAT6 Ethernet cable.
Switched on the ONT, and once fully booted up, switched on the Deco.
Set up the unit via the App, but got a no internet connection status, and LED was static red, Yet the details page showed an IP address assigned by the ISP, along with Primary DNS and Secondary DNS.
Reset Deco and tried again by repeating above procedure. Still same issue.
Unplugged the Ethernet from the Deco and plugged back into the current Router (Archer AX55) and confirmed connection is working.
Tried to plug PC into Deco via Ethernet (after disconnecting PC from main network) to attempt manual firmware update.
However, the PC would not connect and only showed “Unknown connection” in Windows 10 Network and sharing centre. This also showed the PC was assigned an IP address by the Deco, but it was way out of the Decos range. I can't remember the precise details, but it looked like the Deco was 192.168.68.1 with a DHCP range from 192.168.68.2 to 192.168.72.255. The PC was assigned something like 192.168.248.0.
Also, the Deco App showed there were no connected clients, even though my phone (with the App) was connected.
I eventually got the Deco to connect to the Internet and update the firmware by connecting it to my Archer AX55 via Ethernet.
Once the unit was updated, tried to connect the Deco via Ethernet to the ONT, but again, no internet connection. Also tried to reset and start from scratch again, but no joy.
Our ISP asked me to ping their DNS, with a 50% packet loss, then advised there are some routers/mesh systems that do not like it when the DNS is made up of the same digits. For example, 2.2.2.2 or 3.3.3.3