Reproduction steps:
1. Open project "RemoteConfigBug"
2. Open Scenes > SampleScene
3. Open Remote Config Window
4. Add a setting with Key: interstitialAdsFrequency, Type: int, Value: 70
5. Enter Play Mode
6. Wait for "True" and "70" to show up in the Console and exit Play Mode
7. Turn off the Internet
8. Enter Play Mode and wait for 10 seconds

Expected result: "No settings loaded this session; using cached values from a previous session." is printed in the Console
Actual result: Error is printed to the Console: "Curl error 28: Operation timed out after 10000 milliseconds with 0 bytes received"

Reproducible with: 2.1.2, 3.0.0-pre.11 (2020.3.30f1, 2021.2.13f1, 2022.1.0b9, 2022.2.0a8)
Could not test with: 2.1.2, 3.0.0-pre.11 (2019.4.36f1, Compilation errors)

The code used to test this behavior:
switch (configResponse.requestOrigin) {
case ConfigOrigin.Default:
Debug.Log("No settings loaded this session; using default values.");
break;
case ConfigOrigin.Cached:
Debug.Log("No settings loaded this session; using cached values from a previous session.");
break;
case ConfigOrigin.Remote:
Debug.Log(ConfigManager.appConfig.HasKey("interstitialAdsFrequency").ToString());
Debug.Log(ConfigManager.appConfig.GetInt("interstitialAdsFrequency").ToString());
_interstitialAdsFrequency = ConfigManager.appConfig.GetInt("interstitialAdsFrequency", DefaultInterstitialAdsFrequency);
assignmentId = ConfigManager.appConfig.assignmentId;
break;
}