1. I am not asking you to remove the second router judging by this answer:
i also recall we bought that second router/access point because that ubee thing only got us problems like wifi disconnects ect.
You had a possible signal issue with devices maybe.
2. There is another way to avoid having to port forward both routers and that is to connect the modem/router to the netgear by it's Lan port rather than the WAN or internet port and only have to do the forwarding using the ubee.
3. first we need to check you have forwarding on your ubee which i am sure it will have so if disconnect from the netgear router and connect an ethernet cable to your computer ethernet port and the other end to one of the ubee's Lan ports.
Open a browser and navigate to the ubee's ip address usually 192.168.1.1 but may be different on your router and login with credentials and then click on gateway tab and look down at the headings you should see a heading forwarding. Please confirm you have this. Please open up forwarding and copy the portforwarding details that are in the netgear to here.
Go to DDNS section and open it up select no-ip.org from the drop down menu and enter your username and password for no-ip.org and any other details asked for.
On the same page there will be a heading DHCP server please click on this and the page will display your DHCP server and you will see a heading DHCP starting address if this is 192.168.1.2 please change this to 192.168.1.3 click apply or save and reboot router.
Please let us know when you have done these steps.