Trying to connect a unifi UDM pro to an external 4G EE modem

[davidjac]

Has anyone any experience of this as the UDM pro just keeps reporting no Internet connection.  Appreciate any advice. 

[XRaySpeX]

Which EE mobile router do you have?

[mikeliuk]

Hi @davidjac ,

Have you cabled up the UDM Pro WAN and does it receive an IP address on your upstream router LAN by DHCP?

Are you able to access the management interface of the UDM Pro?

Is there any option to ping your upstream router from the UDM Pro and then ping an outside address such as 8.8.8.8 ?

http://dl-origin.ubnt.com/qsg/UDM-Pro/UDM-Pro_EN.html

[davidjac]

It's not an EE Modem it's called an outdoorrouter.  

Yes it gets a ip which is something like 10.159.xxx.xxx  assume that's the temporarary lease from EE. But won't connect. No I can't get beyond setup stage so have no access to management console. 

[mikeliuk]

Hi @davidjac ,

Is your issue with the UniFi UDM Pro being unable to connect to the internet, or is it instead "outdoorrouter" failing to connect to the internet?

The service provider does use 10.0.0.0/8 addresses for 4G LTE data connections so that seems right. Are you able to connect to the outdoorrouter with another device such as a laptop or mobile phone to double check that outdoorrouter has internet access? In particular, you could visit google.com. If that fails you can ping 8.8.8.8 and try "nslookup google.com" (this latter to check for a name resolution issue).

Once you are certain that "outdoorrouter" has internet access, it can then be the upstream router and you can connect the UDM Pro's WAN to see if the UDM Pro can access the internet.

From the link given above, you should be able to access the management console locally I would guess? Even without the WAN connected I would guess there should be wired accessibility from the LAN. I think the link mentioned a default IP address similar to 192.168.1.1 or at least in a private IPv4 subnet that will never be on the internet.

[davidjac]

Firstly many thanks for your help.

The outdoorrouter does work, the problem is that when I plug this into the wan  port of the UDM Pro it says no internet.  I've tried going to the manual configuration and setting fixed ip but still no joy. 

[mikeliuk]

Hi @davidjac ,

The simplest approach would be to set the UDM Pro WAN as a DHCP client to obtain the correct settings from the outdoorrouter LAN.

If you set a static IP on the UDM Pro WAN in your outdoorrouter private subnet, you would also need to configure the outdoorouter LAN IP as the gateway out to the internet and as the DNS (or a public DNS). It would be simpler to use DHCP client so that the UDM Pro behaves as any other laptop or mobile phone when connecting to the outdoorrouter.

Your first milestone would be to try to ping the outdoorrouter LAN IP from the UDM Pro and this should be possible once the UDM Pro WAN has an IP address. If the UDM Pro has no in-built ability to ping, you can use your device connected behind the UDM Pro to ping the outdoorrouter LAN IP. In fact, from behind the UDM Pro, you should be able to access the management page of the outdoorrouter management page.

One thing to ensure is that your outdoorrouter and UDM Pro LAN subnets do not clash so they should not both use 192.168.1.0/24. You can change one of them to use 192.168.2.0/24 for example.

[EssexBoyEE]

Did this Outdoor 5G Modem not come with an Indoor Router ?

[davidjac]

Thanks for all the help.  I ultimately factory reset the outdoorrouter and it all started working.  I must have had a weird firewall setting blocking it.

Outdoorrouter is actually the brand it's superb for remote locations. 

Again appreciate all help.

[Jon_K]

Thanks for letting us know you got this working, @davidjac.

Let us know if you need anything further.

Jon