Where the function is intended for
A user can see live footage from home via the local network, but not get a connection outside. That pattern helps to distinguish the malfunction.
advice
Dahua P2P status and app accessibility
Reachability in the app is determined by more than wifi at the recorder: internet, P2P status and account pairing each have their own role.
Setting or condition
Check if the recorder has an internet connection, how the P2P status is displayed, and whether the app is logged in under the correct account. Note the error message and the time.
Making a conscious choice
Restore the underlying connection or registration directed. Do not open any random ports on a router if the chosen connection method is not required and the cause is still unknown.
What you check afterwards
Test live view via mobile internet and via your own Wi-Fi, then watch it back and receive a notification. Confirm that the owner can restore access without using a shared password.
Frequently asked questions
Why does the app work at home but not on the way?
The local route can work while external accessibility or account linking fails.
Do I need to open ports for the app?
Not automatically; follow the safe method of the used system.