diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a37b2d5..e36e18ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,9 @@
 All notable changes to the Zlux Server Framework package will be documented in this file..
 This repo is part of the app-server Zowe Component, and the change logs here may appear on Zowe.org in that section.
 
+## 2.18.1
+- Bugfix: App-server could not register with discovery server when AT-TLS was enabled for app-server. (#581)
+
 ## 2.17.0
 - Enhancement: Added function `isClientAttls(zoweConfig)` within `libs/util.js`. Whenever a plugin makes a network request, it should always use this to determine if a normally HTTPS request should instead be made as HTTP due to AT-TLS handling the TLS when enabled. (#544)
 - Bugfix: Fixed function `isServerAttls(zoweConfig)` within `libs/util.js`, which was preventing using AT-TLS with app-server. (#544)
diff --git a/lib/apiml.js b/lib/apiml.js
index afd21566..6c02a188 100644
--- a/lib/apiml.js
+++ b/lib/apiml.js
@@ -171,9 +171,8 @@ ApimlConnector.prototype = {
       httpEnabled: false,
       httpsEnabled: true
     };
-    const proto = 'https';
 
-    log.debug("ZWED0141I", proto, this.port); //"Protocol:", proto, "Port", port);
+    log.debug("ZWED0141I", 'https', this.port); //"Protocol:", proto, "Port", port);
     log.debug("ZWED0142I", JSON.stringify(protocolObject)); //"Protocol Object:", JSON.stringify(protocolObject));
     
     const instance = Object.assign({}, MEDIATION_LAYER_INSTANCE_DEFAULTS(proto, this.hostName, this.port));
@@ -183,9 +182,9 @@ ApimlConnector.prototype = {
        hostName:  this.hostName,
        ipAddr: this.ipAddr,
        vipAddress: "zlux",//this.vipAddress,
-       statusPageUrl: `${proto}://${this.hostName}:${this.port}/server/eureka/info`,
-       healthCheckUrl: `${proto}://${this.hostName}:${this.port}/server/eureka/health`,
-       homePageUrl: `${proto}://${this.hostName}:${this.port}/`,
+       statusPageUrl: `https://${this.hostName}:${this.port}/server/eureka/info`,
+       healthCheckUrl: `https://${this.hostName}:${this.port}/server/eureka/health`,
+       homePageUrl: `https://${this.hostName}:${this.port}/`,
        port: {
          "$": protocolObject.httpPort, // This is a workaround for the mediation layer
          "@enabled": ''+protocolObject.httpEnabled
@@ -228,7 +227,7 @@ ApimlConnector.prototype = {
   },*/
   
   registerMainServerInstance() {
-    const overrideOptions = Object.assign({},this.tlsOptions);
+    const overrideOptions = this.isClientAttls ? {} : Object.assign({},this.tlsOptions)
     if (!this.tlsOptions.rejectUnauthorized) {
       //Keeping these certs causes an openssl error 46, unknown cert error in a dev environment
       delete overrideOptions.cert;
@@ -240,7 +239,8 @@ ApimlConnector.prototype = {
       eureka: Object.assign({}, MEDIATION_LAYER_EUREKA_DEFAULTS, this.eurekaOverrides),
       requestMiddleware: function (requestOpts, done) {
         done(Object.assign(requestOpts, overrideOptions));
-      }
+      },
+      ssl: !this.isClientAttls
     }
     log.debug("ZWED0144I", JSON.stringify(zluxProxyServerInstanceConfig, null, 2)); //log.debug("zluxProxyServerInstanceConfig: " 
         //+ JSON.stringify(zluxProxyServerInstanceConfig, null, 2))
@@ -280,7 +280,12 @@ ApimlConnector.prototype = {
   },
 
   getServiceUrls() {
-    return this.discoveryUrls.map(url => url + (url.endsWith('/') ? '' : '/') + 'apps');
+    let urls = this.discoveryUrls.map(url => url + (url.endsWith('/') ? '' : '/') + 'apps');
+    if (this.isClientAttls) {
+      return urls.map(url => url.replaceAll('https', 'http'));
+    } else {
+      return urls;
+    }
   },
 
   getRequestOptionsArray(method, path) {