Turris Omnia - no internet access despite IP assigned to WAN interface

I’m having issues trying to configure my newly purchased Turris Omnia router with the optical convertor from ISP and make it connect to the internet.

I’m using the following setup:

Huawei optical convertor ↔ WAN port Omnia
PC ↔ LAN0 port Omnia
Turris Omnia Wi-Fi 6
TurrisOS 7.0.2

I have re-flashed the router using the latest medkit and reset to factory settings to remove any misconfiguration I might have caused. After that I performed the initial configuration with the “Router” workflow.

WAN interface is configured to DHCP (automatic configuration) for both IPv4 and IPv6.

LuCI Network → Interfaces reports that wan interface has an IPv4 address assigned and wan6 an IPv6 address (see below).

wan / eth2

Protocol: DHCP client
Uptime: 0h 18m 8s
MAC: D8:58:D7:01:E1:91
RX: 692.52 KB (7213 Pkts.)
TX: 44.37 KB (383 Pkts.)
IPv4: 100.82.6.3/24

wan6 / alias of “wan”

Protocol: Alias Interface (DHCPv6 client)
Uptime: 0h 18m 22s
IPv6: 2a03:c22:2401:7:da58:d7ff:fe01:e191/64

Still the internet connection doesn’t work and the Dashboard in LuCI reads:

IPv4 Internet

Connected:no
Uptime:-
Protocol:-
IPv4:-
GatewayV4:-
DNSv4:-

IPv6 Internet

Connected:yes
Uptime:0h 20m 15s
Protocol:DHCPv6 client
IPv6 prefix:-
GatewayV6:fe80::de2c:6eff:fedc:bc70
DNSv6:

If I connect the optical converter through RJ45 cable directly to my PC, internet connection works without an issue, so I can rule out the malfunction on the ISP’s side.

Any ideas or advice what might be wrong? I’m a bit perplexed… I would have assumed that such a trivial router setup would work out-of-box. Thanks a lot for any insights.

Is it an SFP converter or RJ45?

It’s a standalone GPON ONT Huawei HG8310M connected with RJ45 cable to the regular WAN port of Omnia. SFP cage on Omnia is empty.

If I connect the GPON ONT directly to Ethernet port of a PC, internet connection works. When I plug it into Omnia, internet connection (routing) doesn’t work. Confirmed with ISP that everything looks fine on their end. Any troubleshooting ideas appreciated.

What does the:
ip route says on Omnia?

This is what I get from the SSH.

root@turris:~# ip route
10.111.222.0/24 dev br-guest-turris proto kernel scope link src 10.111.222.1 linkdown
100.82.6.0/24 dev eth2 proto kernel scope link src 100.82.6.3
192.168.1.0/24 dev br-lan proto kernel scope link src 192.168.1.1

So you dont have the default route added. Go to LuCi → your WAN interface → Edit → advanced tab and check if you have a checkbox ticked on “Use default gateway” if its there then your ISP doesnt push that with DHCP somehow for Omnia

“Use default gateway” is checked for both “wan” and “wan6” interfaces. I’m really puzzled. :confused: When I connected the media converter directly to PC, it all worked smoothly. Couldn’t there be some firewall misconfiguration at play? But I re-flashed the router several times with the latest medkit, so I assume it should be the factory defaults.

Is the IP you get on the PC same as on Omnia on WAN? I would be more patient.
In general the ISPs assign one IP to customer. So maybe you get the “right one” on PC and it works but then Omnia gets another with no default route.

You may check it faster by cloning the MAC of your PC on Omnia to be sure to get the same IP and possibly a default route with it. Most ISPs differentiate clients by MAC addresses of their router as a static lease. And stop reflashing once is enough🤣

Now that is interesting and intriguing at the same time. I used the MAC address of my Ethernet adapter in reForis WAN settings and got the IPv4 including the gateway.

IPv4 Internet
Connected:yes
Uptime:0h 2m 24s
Protocol:DHCP client
IPv4:10.102.105.226
GatewayV4:10.102.105.1
DNSv4:178.17.0.11,178.17.0.12

However this MAC is not registered with the ISP, so there is no outside connectivity.

Vážený kliente,
právě Vám byla přiřazena dočasná IP adresa: 10.102.105.226
V této chvíli můžete navštívit pouze následující stránky:
internet.uvt.cz

If I revert the MAC address, i.e. to the default eth2 MAC (which should be registered with the ISP), I get a different IPv4 (100.82.6.3), but no gateway configuration.

So now tell that to your ISP. Or just leave it for a night connected to Omnia so it renew its IP at some point depending on how long your ISP set the lease time to and it might just work in the morning.

Solved with the technical support of ISP. Appears to have been some misconfiguration on their end. Thanks a lot to everyone for their suggestions and insights. This topic may be closed.

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