Access Self-Hosted Cloud Server

[turdwagon1800]

I just finished loading up a Raspberry Pi 3 with Owncloud running on Ubuntu Server 16.04 LTS. I followed the set up directions at digitalocean.com. Set up of Ubuntu and all of the software needed for Owncloud went great. I am able to connect to the Owncloud server on as long as I am on the same network as it. When I try to connect from another network, like my phones 4g, it is a no go. I get an error page in the browser saying the site refused to connect. I've attempted to forward port 8080 on my Netgear C6300, as well as configure Apache to broadcast to port 8080 within the config files on the Pi, but it isn't working. I followed the very simple directions for my router at portforward.com to no avail. The server is broadcasting over on an ssl connection over https. I am using Comcast internet. Can someone please tell me what exactly I need to do in order to be able to access the Owncloud server remotely?

[KuJoe]

First thing I would do would be to not change any of the ports on the Owncloud install unless you have a good reason, instead setup your router to forward port 8080 to port 80 on your RPi. Second, are you able to telnet to port 8080 or 443 externally? If not do you get an immediate rejection or does it just timeout eventually?

[PeachyUwUSenpai]

try this

http://canyouseeme.org/

also what error do you get when you try to go to it?

[turdwagon1800]

7 hours ago, KuJoe said:

First thing I would do would be to not change any of the ports on the Owncloud install unless you have a good reason, instead setup your router to forward port 8080 to port 80 on your RPi. Second, are you able to telnet to port 8080 or 443 externally? If not do you get an immediate rejection or does it just timeout eventually?

Okay, I don't know what that means, or how to go about doing "forward port 8080 to port 80 on you RPi". If you could kindly explain to me how to do that It would be greatly appreciated. Thanks. All I've done so far is create a profile over the web interface to my router which was supposed to open port 8080. I read that comcast blocks port 80 and that port 8080 should be used instead. I don't know if this is true or not. Just something I read at a site which had some instructions on how to accomplish this. Followed said instructions to the tea and it didn't work. How do I forward a port from my router to the RPi? Thanks. 

[turdwagon1800]

7 hours ago, Alaradia said:

try this

http://canyouseeme.org/

also what error do you get when you try to go to it?

Yea, I've been checking there after every change I make to my router. I get the same thing every time.