remote web cant work in iphone12 mini

[And370]

PC os：MaxOS/Windows
iphone12 mini ,os：ios 14.1

I try to start an remote web service in the same wifi with PC
but the web url cant entry
by the way, I go to mobile settings ,there is a problem that phyphox never ask me to open the permission of network/wifi
I want to take the data from web service

[Staacks]

Unfortunately, there is not much to go on from this report and on iOS 14.2 (an iPhone 8, though) it seems to work just fine, so let's check a few things, so I can hopefully reproduce and fix the problem:

• When you start the "allow remote access", you should see a banner at the bottom of the screen with an address. What does it say?
• Which browser do you use to access phyphox remotely?
• Is there an error message shown by the browser or is it just a blank page or does it just load forever?
• Which experiment (entry in the main menu of phyphox) did you use?
• Am I correct to assume from your profile that your phone is set to Chinese with simplified caracters? (Asking because sometimes)
  (The last two questions are related: It might be that a special character might break the remote access feature. This should not happen, but I want to be sure that it is not a specific experiment in a specific language that does not work.)

About the permission:
I am a bit confused about this one because at first I thought that there is no option to control Wifi access for specific apps on an iPhone, but then I learned that Chinese iPhones in particular have that option. However, it seems not to be something that the app needs to request. Can you tell me how this works for other apps? Do you open a new app and it asks to access the internet via Wifi? It might be that iOS generates this dialog automatically if the app accesses the internet and it might not be required for phyphox, because phyphox does not make any request to the network. Phyphox just opens a local network port and waits for connections. You could try to trigger the dialog by doing the "sensor database" experiment (white entry at the bottom of the list) and submit the result to our database. This is pretty much the only function of phyphox that makes an actual request to the network.

In that context: Do you know of other phyphox users from China that use iOS? Do they have the same problem?