Hello guys i hope you can help me on this.
i made an arduino powered web server that is able to control 2 relays from internet but im dealing with a problem that i cannot understand why its happening.
i’ve done the port forwarding on my router and allowed tcp incoming-outgoing connections on port 80 on my firewall and while i am able to access the web page served by the arduino and enable the relays both from my home network and from a computer on on another network through internet, i cannot by all means access the webpage if i use my phone with my operator’s mobile data plan connection!
if i connect my phone with wifi, (either my wifi or my neigbours wifi wich it is totally seperated with mine) it does load the page and controls the arduino, still if i use the mobile data plan it wont access the arduino server through the ddns domain
something else that i tried is to access my routers administration page through the dynamic dns page on my mobile connection and it does work. :~
to sum it up.
access arduino on local ip from my computer works
access arduino from dynamic dns domain from my computer through internet works
access arduino from dynamic dns domain from another computer not in my lan works.
access arduino from dynamic dns domain from my phone through my wifi internet works
access arduino from dynamic dns domain from my phone through my neighbors router works
access arduino from dynamic dns domain from my phone through mobile data plan doesnt work
access my router’s remote administration secure page from dynamic dns website from my phone through mobile data plan works! :~
my routers remote admin page (through internet) and the arduino web page is on the same address with the differnce that
in order to access the router’s admin page you have to enter https:// before the web address.
if you type http:// you will reach arduino instead of the router.
(pls dont click the links i just made them up, dont have a clue where the lead)
https://xxxx.domain.xxx leads to router administration page
http://xxxx.domain.xxx leads to arduino web server.
the first address on mobile data plan works and the second doesnt…
any idea why?