Codeworks for Android 1R8 upgrade issue

After upgrading from 1R7 to 1R8, I get the following issue despite clean, having no custom gradle file, and having no installation errors:

Could not resolve all files for configuration ‘:classpath’.
Could not resolve com.android.tools.build:gradle:2.3.3.
Required by:
project :
Could not resolve com.android.tools.build:gradle:2.3.3.
Could not get resource ‘https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/2.3.3/gradle-2.3.3.pom’.
Could not HEAD ‘https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/2.3.3/gradle-2.3.3.pom’.
Permission denied: connect
Could not resolve com.android.tools.build:gradle:2.3.3.
Could not get resource ‘https://jcenter.bintray.com/com/android/tools/build/gradle/2.3.3/gradle-2.3.3.pom’.
Could not HEAD ‘https://jcenter.bintray.com/com/android/tools/build/gradle/2.3.3/gradle-2.3.3.pom’.
Permission denied: connect
Could not resolve digital.wup:android-maven-publish:3.2.0.
Required by:
project :
Could not resolve digital.wup:android-maven-publish:3.2.0.
Could not get resource ‘https://dl.google.com/dl/android/maven2/digital/wup/android-maven-publish/3.2.0/android-maven-publish-3.2.0.pom’.
Could not GET ‘https://dl.google.com/dl/android/maven2/digital/wup/android-maven-publish/3.2.0/android-maven-publish-3.2.0.pom’.
Permission denied: connect
Could not resolve digital.wup:android-maven-publish:3.2.0.
Could not get resource ‘https://jcenter.bintray.com/digital/wup/android-maven-publish/3.2.0/android-maven-publish-3.2.0.pom’.
Could not GET ‘https://jcenter.bintray.com/digital/wup/android-maven-publish/3.2.0/android-maven-publish-3.2.0.pom’.
Permission denied: connect

As a side note, when I force use the following custom gradle file to see if that helps, the errors do not change:

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.4'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.blahblah.test"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
    }
    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
            jniLibs.srcDirs = ['libs']
        }
    }
    signingConfigs {
        release {
            storeFile file("release.keystore")
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
}