2019.2 Issue with Application.internetReachability for Android

Hello,

I use "Application.internetReachability" to check if the game client has internet access for many reasons in my game.

Code (CSharp):

1. using UnityEngine;
2.  
3. public class Example : MonoBehaviour
4. {
5.     string m_ReachabilityText;
6.  
7.     void Update()
8.     {
9. //Output the network reachability to the console window
10.         Debug.Log("Internet : " + m_ReachabilityText);
11.         //Check if the device cannot reach the internet
12.         if (Application.internetReachability == NetworkReachability.NotReachable)
13.         {
14.             //Change the Text
15.             m_ReachabilityText = "Not Reachable.";
16.         }
17.         //Check if the device can reach the internet via a carrier data network
18.         else if (Application.internetReachability == NetworkReachability.ReachableViaCarrierDataNetwork)
19.         {
20.             m_ReachabilityText = "Reachable via carrier data network.";
21.         }
22.         //Check if the device can reach the internet via a LAN
23.         else if (Application.internetReachability == NetworkReachability.ReachableViaLocalAreaNetwork)
24.         {
25.             m_ReachabilityText = "Reachable via Local Area Network.";
26.         }
27.     }
28. }

Before upgrading to 2019.2: it would worked fine before upgrading.

After upgrading to 2019.2: it would return = "NetworkReachability.NotReachable" but only at the initial app launch.

After putting some debug steps in, I was able to see that the time it takes for the client to recognize the internet connection varied. Sometimes it would recognize the connection right away but other times it showed as "NotReachable" for up to 10 seconds until being recognized.

I need it to be able to recognize the connection right away. Has anyone else experienced any issues with this delay?

Can anyone shed some light on this issue?

​

After upgrading to 2019.2

 

Thanks for this DevPitaya, I thought I was the only one (and hence that I messed up something in my code!). Same issue since upgrading to 2019.2.

 

Same thing here...

 

Thanks for confirming this issue @mikapote @thordickinson . Can we get some insight from the Unity team on this please? Is there a workout/fix?

 

Happening here to 2019.2

 

same here

 

same here i got doomed the whole day until i found out this thread

 

same here

 

Seeing this on Oculus Quest with Unity 2019.2.5f1. This call has worked reliably for several years. At a minimum, if the underlying logic has changed, that should be expressed in a new API so that existing code doesn't break.

 

We got the same issue, did anyone find a working solution for this?

 

@alexidr until it's fixed in Unity again you could try a different means of checking internet availability, like using a Ping object to ping something you know will get a response (like Google's DNS, 8.8.8.8). That solution is a bit annoying as you have to wait for a response to the ping whereas you can always read Application.internetReachability. Also, if your app hangs while loading a ping can fail, so it's a good idea to verify a failed ping by sending another one. Two fails means most likely no internet.

 

Happening with 2019.2.6

 

thank you sooooo much

 

Which Fixed in 2019.2 has it been fixed in? Currently using 2019.2.2f1 and experiencing this for both Pixel XL 2 and OnePlus normal Android phones

 

The docs (https://docs.unity3d.com/ScriptReference/Application-internetReachability.html) say to not use this to determine actually connectivity... If I want to constantly poll during my mobile game that the internet connection is working, how can I do that?

 

I found solution for Application.internetReachability always not reachable at the start of app on Android (which worked correctly on PC). I just called it in empty if in Start() and right after it I called it again in coroutine which contained also webrequest but I think it would work even outside of coroutine.

if (Application.internetReachability == NetworkReachability.NotReachable)
{

}
StartCoroutine(getRequireInternet());

 

I don't know guys.
I'm using unity 2020 LTS and I still have the same issue.
I'm now ignoring this variable at all, as it seems not working and not so useful.
i will try to only check the ping.