diff --git a/.deploy/circleci/token.properties b/.deploy/circleci/token.properties
index e918f77e4a..a3747387e8 100644
--- a/.deploy/circleci/token.properties
+++ b/.deploy/circleci/token.properties
@@ -12,7 +12,7 @@ database.password=1nf0rm1x
 database.INFORMIXSERVER=informixoltp_tcp
 database.locale=en_us.utf8
 
-# context.security.url - URL for JNDI lookup 
+# context.security.url - URL for JNDI lookup
 context.security.url=localhost:11199
 
 ## Used by cache.properties
@@ -35,7 +35,7 @@ WINFORMULA_SERVER_NAME=tc.cloud.topcoder.com/winformula
 CSF_SERVER_NAME=csf.dev.topcoder.com
 CORP_SERVER_NAME=tc.cloud.topcoder.com/corp
 SOFTWARE_SERVER_NAME=tcs.cloud.topcoder.com
-FORUMS_SERVER_NAME=forums.dev.topcoder.com
+FORUMS_SERVER_NAME=vanilla.topcoder-dev.com
 HOST_URL=localhost:11199
 FORUMS_HOST_URL=jnp://localhost:1199
 CONTEST_HOST_URL=63.118.154.180:10099
diff --git a/scripts/auto_pilot/ApplicationServer.properties b/scripts/auto_pilot/ApplicationServer.properties
index 94cacb4720..ca1d01c93f 100644
--- a/scripts/auto_pilot/ApplicationServer.properties
+++ b/scripts/auto_pilot/ApplicationServer.properties
@@ -15,7 +15,7 @@ WINFORMULA_SERVER_NAME=tc.cloud.topcoder.com/winformula
 CSF_SERVER_NAME=csf.dev.topcoder.com
 CORP_SERVER_NAME=tc.cloud.topcoder.com/corp
 SOFTWARE_SERVER_NAME=tcs.cloud.topcoder.com
-FORUMS_SERVER_NAME=forums.dev.topcoder.com
+FORUMS_SERVER_NAME=vanilla.topcoder-dev.com
 HOST_URL=localhost:11199
 FORUMS_HOST_URL=localhost:1199
 CONTEST_HOST_URL=63.118.154.180:10099
diff --git a/src/main/java/com/cronos/onlinereview/util/ConfigHelper.java b/src/main/java/com/cronos/onlinereview/util/ConfigHelper.java
index 530763ac25..d54c89c2d1 100644
--- a/src/main/java/com/cronos/onlinereview/util/ConfigHelper.java
+++ b/src/main/java/com/cronos/onlinereview/util/ConfigHelper.java
@@ -588,6 +588,11 @@ public class ConfigHelper {
      */
     private static final String VALID_ISSUERS = "valid_issuers";
 
+    /**
+     * <p>A <code>String</code> providing the name for challenge by legacy id v5 url property.</p>
+     */
+    private static final String CHALLENGE_BY_LEGACY_ID_URL_V5 = "challenge_by_legacy_id_url_v5";
+
     /**
      * This member variable holds the submitter role id.
      */
@@ -1053,12 +1058,17 @@ public class ConfigHelper {
      * JWT default expiration time (1 day)
      */
     private static final int DEFAULT_EXPIRATION_TIME = 60 * 24;
-    
+
     /**
      * New Auth URL for Iframe to refresh the RS256 token
      */
     private static String newAuthUrl;
 
+    /**
+     * Challenge by Legacy Id URL
+     */
+    private static String challengeByLegacyIdUrlV5;
+
     static {
         // Obtaining the instance of Configuration Manager
         ConfigManager cfgMgr = new ConfigManager();
@@ -1681,10 +1691,11 @@ public class ConfigHelper {
             } catch (Exception e) {
                 preSignedExpTimeMilis = 60 * 60 * 1000;
             }
-	    
+
             ConfigManager.Property newAuth = cfgMgr.getPropertyObject(ONLINE_REVIEW_CFG_NS, "new_auth");
             newAuthUrl = newAuth.getValue("new_auth_url");
 
+            challengeByLegacyIdUrlV5 = cfgMgr.getString(ONLINE_REVIEW_CFG_NS, CHALLENGE_BY_LEGACY_ID_URL_V5);
         } catch (Exception une) {
             System.out.println(une.getMessage());
             une.printStackTrace();
@@ -2559,12 +2570,20 @@ public static String getS3BucketDmz() {
     public static long getPreSignedExpTimeMilis() {
         return preSignedExpTimeMilis;
     }
-    
+
     /**
-     * Get new auth url 
-     * @return url 
+     * Get new auth url
+     * @return url
      */
     public static String getNewAuthUrl() {
         return newAuthUrl;
     }
+
+    /**
+     * Get challenge by legacy id url
+     * @return url
+     */
+    public static String getChallengeByLegacyIdUrlV5() {
+        return challengeByLegacyIdUrlV5;
+    }
 }
diff --git a/src/main/resources/config.xml b/src/main/resources/config.xml
index c3f8ca7bb1..c891448101 100644
--- a/src/main/resources/config.xml
+++ b/src/main/resources/config.xml
@@ -2092,4 +2092,7 @@
     <Property name="ApprovalPhaseDefaultReviewersNumber">
         <Value>1</Value>
     </Property>
+    <Property name="challenge_by_legacy_id_url_v5">
+        <Value>@topcoder_api_base_url_v5@/challenges?legacyId=</Value>
+    </Property>
 </Config>
\ No newline at end of file
diff --git a/token.properties.local b/token.properties.local
index 23f1ed3024..1d24e3169f 100644
--- a/token.properties.local
+++ b/token.properties.local
@@ -73,8 +73,8 @@ AOLICQ_SERVER_NAME=63.118.154.179
 WINFORMULA_SERVER_NAME=tc.cloud.topcoder.com/winformula
 CSF_SERVER_NAME=csf.dev.topcoder.com
 CORP_SERVER_NAME=www.topcoder-dev.com/corp
-SOFTWARE_SERVER_NAME=local.topcoder-dev.com:8443
-FORUMS_SERVER_NAME=forums.dev.topcoder.com
+SOFTWARE_SERVER_NAME=local.topcoder-dev.com:8080
+FORUMS_SERVER_NAME=vanilla.topcoder-dev.com
 HOST_URL=localhost:1099
 FORUMS_HOST_URL=jnp://localhost:1099
 CONTEST_HOST_URL=63.118.154.180:10099
@@ -115,7 +115,7 @@ DOMAIN_AUTH0 = topcoder-dev.auth0.com
 #CSF_SERVER_NAME=csf.dev.topcoder.com
 #CORP_SERVER_NAME=tc.cloud.topcoder.com/corp
 #SOFTWARE_SERVER_NAME=tcs.cloud.topcoder.com
-#FORUMS_SERVER_NAME=forums.dev.topcoder.com
+#FORUMS_SERVER_NAME=vanilla.topcoder-dev.com
 #HOST_URL=localhost:11199
 #FORUMS_HOST_URL=jnp://localhost:1199
 #CONTEST_HOST_URL=63.118.154.180:10099
diff --git a/web/includes/project/project_info.jsp b/web/includes/project/project_info.jsp
index 02afc6f2b3..80621c1586 100644
--- a/web/includes/project/project_info.jsp
+++ b/web/includes/project/project_info.jsp
@@ -36,7 +36,7 @@
                 </c:if>
                 <a class="breadcrumbLinks"
                     href="${viewContestLink}"><or:text key="viewProjectDetails.ViewContest" /></a> |
-                <a class="breadcrumbLinks"
+                <a class="breadcrumbLinks projectInfo__forumLink"
                     href="${forumLink}"><or:text key="viewProjectDetails.DevelopmentForum" /></a></td>
         </tr>
     </table>
diff --git a/web/jsp/viewProjectDetails.jsp b/web/jsp/viewProjectDetails.jsp
index a70a0d609f..30b4b51a27 100644
--- a/web/jsp/viewProjectDetails.jsp
+++ b/web/jsp/viewProjectDetails.jsp
@@ -7,6 +7,7 @@
 --%>
 <%@ page contentType="text/html;charset=UTF-8" %>
 <%@ page language="java" isELIgnored="false" %>
+<%@ page import="java.text.DecimalFormat,com.topcoder.onlinereview.component.webcommon.ApplicationServer" %>
 <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
 <%@ taglib prefix="s" uri="/struts-tags" %>
@@ -77,17 +78,36 @@
         );
     }
 </script>
+    <script type="text/javascript">
+        function updateForumLink(projectId) {
+            return fetch("<%=com.cronos.onlinereview.util.ConfigHelper.getChallengeByLegacyIdUrlV5()%>" + projectId)
+                .then((response) => response.json())
+                .then((data) => {
+                    let with_forum = data.filter(item => 'discussions' in item);
+                    let id = with_forum?.[0]?.id;
+                    if (id !== undefined) {
+                        let forumLinkEl = document.querySelector('.projectInfo__forumLink');
+                        return forumLinkEl.href = "https://<%=ApplicationServer.FORUMS_SERVER_NAME%>/categories/" + id;
+                    }
+                });
+        }
+
+        document.addEventListener("DOMContentLoaded", function(){
+            let projectId = ${project.id};
+            updateForumLink(projectId);
+        });
+    </script>
 </head>
 
 <body>
 <div align="center">
-    
+
     <div class="maxWidthBody" align="left">
 
         <jsp:include page="/includes/inc_header.jsp" />
-        
+
         <jsp:include page="/includes/project/project_tabs.jsp" />
-        
+
             <div id="mainMiddleContent">
                 <div style="position: relative; width: 100%;">
                     <jsp:include page="/includes/project/project_info.jsp" /><br />
@@ -115,7 +135,7 @@
                     </div>
                 </div>
             </div>
-        
+
         <jsp:include page="/includes/inc_footer.jsp" />
 
     </div>