Do you have a file inside android/app/src/main/res/xml/network_security_config.xml?
If not try once.
network_security_config.xml
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<domain-config cleartextTrafficPermitted="true">
<domain includeSubdomains="true">10.0.0.193</domain>
</domain-config>
</network-security-config>
and then reference in AndroidManifest.xml
<application
android:usesCleartextTraffic="true"
android:networkSecurityConfig="@xml/network_security_config"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">