diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cf8ac82..56badb7a 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.
 
+## 3.1.0
+- Bugfix: App-server could not register with discovery server when AT-TLS was enabled for app-server. (#580)
+
 ## 3.0.0
 - Enhancement: Add ability for server to dynamically load plugin web content based on `entryPoint` specification in the
 `pluginDefinition.json`
diff --git a/lib/apiml.js b/lib/apiml.js
index afd21566..85e87b73 100644
--- a/lib/apiml.js
+++ b/lib/apiml.js
@@ -171,21 +171,20 @@ 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));
+    const instance = Object.assign({}, MEDIATION_LAYER_INSTANCE_DEFAULTS('https', this.hostName, this.port));
     Object.assign(instance, overrides);
     Object.assign(instance,  {
        instanceId: `${this.hostName}:zlux:${this.port}`,
        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) {
diff --git a/package-lock.json b/package-lock.json
index bbc1c09e..9c8f46d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,12 +12,12 @@
         "@rocketsoftware/eureka-js-client": "~4.5.7",
         "@rocketsoftware/express-ws": "^5.0.0",
         "accept-language-parser": "~1.5.0",
-        "axios": "^1.7.7",
+        "axios": "^1.7.9",
         "bluebird": "3.7.2",
         "body-parser": "~1.20.3",
         "cookie-parser": "~1.4.6",
         "diffie-hellman": "^5.0.3",
-        "express": "~4.21.0",
+        "express": "^4.21.2",
         "express-session": "~1.18.0",
         "express-static-gzip": "~2.1.7",
         "graceful-fs": "~4.2.11",
@@ -419,9 +419,9 @@
       "integrity": "sha512-3AungXC4I8kKsS9PuS4JH2nc+0bVY/mjgrephHTIi8fpEeGsTHBUJeosp0Wc1myYMElmD0B3Oc4XL/HVJ4PV2g=="
     },
     "node_modules/axios": {
-      "version": "1.7.7",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.7.tgz",
-      "integrity": "sha512-S4kL7XrjgBmvdGut0sN3yJxqYzrDOnivkBiN0OFs6hLiUam3UPvswUo0kqGyhqUZGEOytHyumEdXsAkgCOUf3Q==",
+      "version": "1.7.9",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.9.tgz",
+      "integrity": "sha512-LhLcE7Hbiryz8oMDdDptSrWowmB4Bl6RCt6sIJKpRB4XtVf0iEgewX3au/pJqm+Py1kCASkb/FFKjxQaLtxJvw==",
       "license": "MIT",
       "dependencies": {
         "follow-redirects": "^1.15.6",
@@ -791,19 +791,21 @@
       }
     },
     "node_modules/cookie": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.1.tgz",
-      "integrity": "sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA==",
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+      "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.6"
       }
     },
     "node_modules/cookie-parser": {
-      "version": "1.4.6",
-      "resolved": "https://registry.npmjs.org/cookie-parser/-/cookie-parser-1.4.6.tgz",
-      "integrity": "sha512-z3IzaNjdwUC2olLIB5/ITd0/setiaFMLYiZJle7xg5Fe9KWAceil7xszYfHHBtDFYLSgJduS2Ty0P1uJdPDJeA==",
+      "version": "1.4.7",
+      "resolved": "https://registry.npmjs.org/cookie-parser/-/cookie-parser-1.4.7.tgz",
+      "integrity": "sha512-nGUvgXnotP3BsjiLX2ypbQnWoGUPIIfHQNZkkC668ntrzGWEZVW70HDEB1qnNGMicPje6EttlIgzo51YSwNQGw==",
+      "license": "MIT",
       "dependencies": {
-        "cookie": "0.4.1",
+        "cookie": "0.7.2",
         "cookie-signature": "1.0.6"
       },
       "engines": {
@@ -1025,9 +1027,9 @@
       }
     },
     "node_modules/express": {
-      "version": "4.21.0",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.21.0.tgz",
-      "integrity": "sha512-VqcNGcj/Id5ZT1LZ/cfihi3ttTn+NJmkli2eZADigjq29qTlWi/hAQ43t/VLPq8+UX06FCEx3ByOYet6ZFblng==",
+      "version": "4.21.2",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.21.2.tgz",
+      "integrity": "sha512-28HqgMZAmih1Czt9ny7qr6ek2qddF4FclbMzwhCREB6OFfH+rXAnuNCwo1/wFvrtbgsQDb4kSbX9de9lFbrXnA==",
       "license": "MIT",
       "dependencies": {
         "accepts": "~1.3.8",
@@ -1035,7 +1037,7 @@
         "body-parser": "1.20.3",
         "content-disposition": "0.5.4",
         "content-type": "~1.0.4",
-        "cookie": "0.6.0",
+        "cookie": "0.7.1",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
         "depd": "2.0.0",
@@ -1049,7 +1051,7 @@
         "methods": "~1.1.2",
         "on-finished": "2.4.1",
         "parseurl": "~1.3.3",
-        "path-to-regexp": "0.1.10",
+        "path-to-regexp": "0.1.12",
         "proxy-addr": "~2.0.7",
         "qs": "6.13.0",
         "range-parser": "~1.2.1",
@@ -1064,14 +1066,19 @@
       },
       "engines": {
         "node": ">= 0.10.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
       }
     },
     "node_modules/express-session": {
-      "version": "1.18.0",
-      "resolved": "https://registry.npmjs.org/express-session/-/express-session-1.18.0.tgz",
-      "integrity": "sha512-m93QLWr0ju+rOwApSsyso838LQwgfs44QtOP/WBiwtAgPIo/SAh1a5c6nn2BR6mFNZehTpqKDESzP+fRHVbxwQ==",
+      "version": "1.18.1",
+      "resolved": "https://registry.npmjs.org/express-session/-/express-session-1.18.1.tgz",
+      "integrity": "sha512-a5mtTqEaZvBCL9A9aqkrtfz+3SMDhOVUnjafjo+s7A9Txkq+SVX2DLvSp1Zrv4uCXa3lMSK3viWnh9Gg07PBUA==",
+      "license": "MIT",
       "dependencies": {
-        "cookie": "0.6.0",
+        "cookie": "0.7.2",
         "cookie-signature": "1.0.7",
         "debug": "2.6.9",
         "depd": "~2.0.0",
@@ -1084,14 +1091,6 @@
         "node": ">= 0.8.0"
       }
     },
-    "node_modules/express-session/node_modules/cookie": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz",
-      "integrity": "sha512-U71cyTamuh1CRNCfpGY6to28lxvNwPG4Guz/EVjgf3Jmzv0vlDp1atT9eS5dDjMYHucpHbWns6Lwf3BKz6svdw==",
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
     "node_modules/express-session/node_modules/cookie-signature": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.7.tgz",
@@ -1106,9 +1105,10 @@
       }
     },
     "node_modules/express/node_modules/cookie": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz",
-      "integrity": "sha512-U71cyTamuh1CRNCfpGY6to28lxvNwPG4Guz/EVjgf3Jmzv0vlDp1atT9eS5dDjMYHucpHbWns6Lwf3BKz6svdw==",
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.1.tgz",
+      "integrity": "sha512-6DnInpx7SJ2AK3+CTUE/ZM0vWTUboZCegxhC2xiIydHR9jNuTAASBrfEpHhiGOZw/nX51bHt6YQl8jsGo4y/0w==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.6"
       }
@@ -2064,9 +2064,9 @@
       }
     },
     "node_modules/path-to-regexp": {
-      "version": "0.1.10",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.10.tgz",
-      "integrity": "sha512-7lf7qcQidTku0Gu3YDPc8DJ1q7OOucfa/BSsIwjuh56VU7katFvuM8hULfkwB3Fns/rsVF7PwPKVw1sl5KQS9w==",
+      "version": "0.1.12",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.12.tgz",
+      "integrity": "sha512-RA1GjUVMnvYFxuqovrEqZoxxW5NUZqbwKtYz/Tt7nXerk0LbLblQmrsgdeOxV5SFHf0UDggjS/bSeOZwt1pmEQ==",
       "license": "MIT"
     },
     "node_modules/pathval": {
diff --git a/package.json b/package.json
index bd6d60b0..fe553714 100644
--- a/package.json
+++ b/package.json
@@ -40,12 +40,12 @@
     "@rocketsoftware/eureka-js-client": "~4.5.7",
     "@rocketsoftware/express-ws": "^5.0.0",
     "accept-language-parser": "~1.5.0",
-    "axios": "^1.7.7",
+    "axios": "^1.7.9",
     "bluebird": "3.7.2",
     "body-parser": "~1.20.3",
     "cookie-parser": "~1.4.6",
     "diffie-hellman": "^5.0.3",
-    "express": "~4.21.0",
+    "express": "^4.21.2",
     "express-session": "~1.18.0",
     "express-static-gzip": "~2.1.7",
     "graceful-fs": "~4.2.11",
diff --git a/test/webapp/websocket/package-lock.json b/test/webapp/websocket/package-lock.json
index 45ef421a..048d9efb 100644
--- a/test/webapp/websocket/package-lock.json
+++ b/test/webapp/websocket/package-lock.json
@@ -9,10 +9,10 @@
       "version": "1.0.0",
       "license": "EPL-2.0",
       "dependencies": {
-        "axios": "^1.6.4",
+        "axios": "^1.7.9",
         "bufferutil": "^4.0.1",
         "utf-8-validate": "^5.0.2",
-        "ws": "^7.4.6"
+        "ws": "^7.5.10"
       }
     },
     "node_modules/asynckit": {
@@ -21,9 +21,10 @@
       "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
     },
     "node_modules/axios": {
-      "version": "1.6.8",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.6.8.tgz",
-      "integrity": "sha512-v/ZHtJDU39mDpyBoFVkETcd/uNdxrWRrg3bKpOKzXFA6Bvqopts6ALSMU3y6ijYxbw2B+wPrIv46egTzJXCLGQ==",
+      "version": "1.7.9",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.9.tgz",
+      "integrity": "sha512-LhLcE7Hbiryz8oMDdDptSrWowmB4Bl6RCt6sIJKpRB4XtVf0iEgewX3au/pJqm+Py1kCASkb/FFKjxQaLtxJvw==",
+      "license": "MIT",
       "dependencies": {
         "follow-redirects": "^1.15.6",
         "form-data": "^4.0.0",
@@ -134,9 +135,9 @@
       }
     },
     "node_modules/ws": {
-      "version": "7.4.6",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
-      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
+      "version": "7.5.10",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.10.tgz",
+      "integrity": "sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ==",
       "engines": {
         "node": ">=8.3.0"
       },
@@ -161,9 +162,9 @@
       "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
     },
     "axios": {
-      "version": "1.6.8",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.6.8.tgz",
-      "integrity": "sha512-v/ZHtJDU39mDpyBoFVkETcd/uNdxrWRrg3bKpOKzXFA6Bvqopts6ALSMU3y6ijYxbw2B+wPrIv46egTzJXCLGQ==",
+      "version": "1.7.9",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.9.tgz",
+      "integrity": "sha512-LhLcE7Hbiryz8oMDdDptSrWowmB4Bl6RCt6sIJKpRB4XtVf0iEgewX3au/pJqm+Py1kCASkb/FFKjxQaLtxJvw==",
       "requires": {
         "follow-redirects": "^1.15.6",
         "form-data": "^4.0.0",
@@ -238,10 +239,10 @@
       }
     },
     "ws": {
-      "version": "7.4.6",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
-      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
+      "version": "7.5.10",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.10.tgz",
+      "integrity": "sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ==",
       "requires": {}
     }
   }
-}
\ No newline at end of file
+}
diff --git a/test/webapp/websocket/package.json b/test/webapp/websocket/package.json
index d48523b9..e5219d30 100644
--- a/test/webapp/websocket/package.json
+++ b/test/webapp/websocket/package.json
@@ -6,9 +6,9 @@
   "author": "",
   "license": "EPL-2.0",
   "dependencies": {
-    "axios": "^1.6.4",
+    "axios": "^1.7.9",
     "bufferutil": "^4.0.1",
     "utf-8-validate": "^5.0.2",
-    "ws": "^7.4.6"
+    "ws": "^7.5.10"
   }
 }
\ No newline at end of file