diff --git a/package.json b/package.json
index 46c65076..e28fd225 100644
--- a/package.json
+++ b/package.json
@@ -205,6 +205,10 @@
           "command": "vscode-objectscript.explorer.project.refresh",
           "when": "vscode-objectscript.connectActive"
         },
+        {
+          "command": "vscode-objectscript.ccs.activateNamespaceConnections",
+          "when": "workspaceFolderCount != 0"
+        },
         {
           "command": "vscode-objectscript.serverCommands.sourceControl",
           "when": "(vscode-objectscript.connectActive && resourceScheme == isfs) || (vscode-objectscript.connectActive && !editorIsOpen && virtualWorkspace =~ /^isfs(-readonly)?$/)"
@@ -384,6 +388,11 @@
           "when": "view == ObjectScriptExplorer",
           "group": "navigation"
         },
+        {
+          "command": "vscode-objectscript.ccs.activateNamespaceConnections",
+          "when": "view == ObjectScriptExplorer",
+          "group": "navigation"
+        },
         {
           "command": "vscode-objectscript.explorer.project.refresh",
           "when": "view == ObjectScriptProjectsExplorer",
@@ -1082,6 +1091,12 @@
         "category": "ObjectScript",
         "icon": "$(refresh)"
       },
+      {
+        "command": "vscode-objectscript.ccs.activateNamespaceConnections",
+        "title": "Reativar Conexões de Namespaces",
+        "category": "ObjectScript",
+        "icon": "$(plug)"
+      },
       {
         "category": "ObjectScript",
         "command": "vscode-objectscript.jumpToTagAndOffset",
diff --git a/src/ccs/connectionActivator.ts b/src/ccs/connectionActivator.ts
new file mode 100644
index 00000000..b169116c
--- /dev/null
+++ b/src/ccs/connectionActivator.ts
@@ -0,0 +1,170 @@
+import axios from "axios";
+import * as httpsModule from "https";
+import * as vscode from "vscode";
+
+// Inline dos schemas ISFS para evitar dependência circular com utils/extension
+const ISFS_SCHEMES = ["isfs", "isfs-readonly"];
+
+function isClientSideFolder(uri: vscode.Uri): boolean {
+  return !ISFS_SCHEMES.includes(uri.scheme);
+}
+
+function getFolderConn(folderUri: vscode.Uri): vscode.WorkspaceConfiguration {
+  return vscode.workspace.getConfiguration("objectscript", folderUri);
+}
+
+function getConnValue(folderConfig: vscode.WorkspaceConfiguration): Record<string, any> | undefined {
+  const inspect = folderConfig.inspect("conn");
+  return (inspect?.workspaceFolderValue ?? inspect?.workspaceValue) as Record<string, any> | undefined;
+}
+
+function getConnTarget(folderConfig: vscode.WorkspaceConfiguration): vscode.ConfigurationTarget {
+  return folderConfig.inspect("conn")?.workspaceFolderValue
+    ? vscode.ConfigurationTarget.WorkspaceFolder
+    : vscode.ConfigurationTarget.Workspace;
+}
+
+/**
+ * Testa se o servidor responde fazendo uma requisição HTTP direta.
+ * Qualquer resposta HTTP (incluindo 401) indica que o servidor está ativo.
+ */
+async function isServerReachable(host: string, port: number, secure: boolean, pathPrefix: string): Promise<boolean> {
+  if (!host || !port) return false;
+
+  const proto = secure ? "https" : "http";
+  let prefix = (pathPrefix ?? "").trim();
+  if (prefix.length && !prefix.startsWith("/")) prefix = "/" + prefix;
+  const url = `${proto}://${host}:${port}${prefix}/api/atelier`;
+
+  try {
+    const strictSSL = vscode.workspace.getConfiguration("http").get<boolean>("proxyStrictSSL") ?? true;
+    const httpsAgent = new httpsModule.Agent({ rejectUnauthorized: strictSSL });
+    await axios.get(url, {
+      httpsAgent,
+      timeout: 5000,
+      validateStatus: (status) => status < 500,
+    });
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Ativa os workspace folders inativos que usam o mesmo servidor (host:port)
+ * do folder que acabou de conectar com sucesso. Chamado automaticamente após
+ * uma conexão bem-sucedida para restaurar os namespaces relacionados.
+ * Retorna a quantidade de folders ativados.
+ */
+export async function activateSiblingFolders(host: string, port: number): Promise<number> {
+  const folders = vscode.workspace.workspaceFolders ?? [];
+  let count = 0;
+
+  for (const folder of folders) {
+    if (!isClientSideFolder(folder.uri)) continue;
+
+    const folderConfig = getFolderConn(folder.uri);
+    const connValue = getConnValue(folderConfig);
+    if (!connValue) continue;
+
+    // Apenas folders no mesmo servidor que estão inativos
+    if (connValue.active !== false) continue;
+    if (connValue.host !== host || connValue.port !== port) continue;
+
+    await folderConfig.update("conn", { ...connValue, active: true }, getConnTarget(folderConfig));
+    count++;
+  }
+
+  return count;
+}
+
+export interface ReactivationResult {
+  success: boolean;
+  activatedCount: number;
+  activatedFolderUris: vscode.Uri[];
+  errorMessage?: string;
+}
+
+/**
+ * Chamado pelo botão manual no Explorer. Valida conectividade com o servidor
+ * antes de reativar todos os workspace folders com conexão direta inativa.
+ */
+export async function reactivateNamespaceConnections(): Promise<ReactivationResult> {
+  const allFolders = (vscode.workspace.workspaceFolders ?? []).filter((f) => isClientSideFolder(f.uri));
+
+  if (!allFolders.length) {
+    return {
+      success: false,
+      activatedCount: 0,
+      activatedFolderUris: [],
+      errorMessage: "Nenhum workspace folder local encontrado.",
+    };
+  }
+
+  // Mapeia servidores únicos e lista os folders inativos
+  const serverMap = new Map<string, { host: string; port: number; secure: boolean; pathPrefix: string }>();
+  const inactiveFolders: Array<{ folder: vscode.WorkspaceFolder; connValue: Record<string, any> }> = [];
+
+  for (const folder of allFolders) {
+    const folderConfig = getFolderConn(folder.uri);
+    const connValue = getConnValue(folderConfig);
+    if (!connValue?.host || !connValue?.port) continue;
+
+    const key = `${connValue.host}:${connValue.port}`;
+    if (!serverMap.has(key)) {
+      serverMap.set(key, {
+        host: connValue.host,
+        port: connValue.port,
+        secure: connValue.https ?? false,
+        pathPrefix: connValue.pathPrefix ?? "",
+      });
+    }
+
+    if (connValue.active === false) {
+      inactiveFolders.push({ folder, connValue });
+    }
+  }
+
+  if (!serverMap.size) {
+    return {
+      success: false,
+      activatedCount: 0,
+      activatedFolderUris: [],
+      errorMessage: "Nenhuma configuração de servidor encontrada nos workspace folders.",
+    };
+  }
+
+  if (!inactiveFolders.length) {
+    return { success: true, activatedCount: 0, activatedFolderUris: [] };
+  }
+
+  // Valida quais servidores estão acessíveis
+  const reachableKeys = new Set<string>();
+  for (const [key, info] of serverMap) {
+    if (await isServerReachable(info.host, info.port, info.secure, info.pathPrefix)) {
+      reachableKeys.add(key);
+    }
+  }
+
+  if (!reachableKeys.size) {
+    return {
+      success: false,
+      activatedCount: 0,
+      activatedFolderUris: [],
+      errorMessage: "Não foi possível conectar ao servidor. Verifique se o servidor está acessível e tente novamente.",
+    };
+  }
+
+  // Ativa os folders inativos dos servidores alcançáveis
+  const activatedFolderUris: vscode.Uri[] = [];
+  for (const { folder, connValue } of inactiveFolders) {
+    const key = `${connValue.host}:${connValue.port}`;
+    if (!reachableKeys.has(key)) continue;
+
+    const folderConfig = getFolderConn(folder.uri);
+    await folderConfig.update("conn", { ...connValue, active: true }, getConnTarget(folderConfig));
+    activatedFolderUris.push(folder.uri);
+  }
+
+  return { success: true, activatedCount: activatedFolderUris.length, activatedFolderUris };
+}
diff --git a/src/ccs/index.ts b/src/ccs/index.ts
index 8a2ae60d..d4c4b3bc 100644
--- a/src/ccs/index.ts
+++ b/src/ccs/index.ts
@@ -33,3 +33,5 @@ export { createItem } from "./commands/createItem";
 export { convertCurrentItem, convertCurrentItemCustom, convertCurrentItemOnSave } from "./commands/converterItem";
 export { analizarVersaoItem } from "./commands/analizarVersaoItem";
 export { atualizarConfiguracoes } from "./commands/atualizarConfiguracoes";
+export { activateSiblingFolders, reactivateNamespaceConnections } from "./connectionActivator";
+export type { ReactivationResult } from "./connectionActivator";
diff --git a/src/extension.ts b/src/extension.ts
index aa74bc95..3ede4b42 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -172,6 +172,8 @@ import {
   convertCurrentItemOnSave,
   analizarVersaoItem,
   atualizarConfiguracoes,
+  activateSiblingFolders,
+  reactivateNamespaceConnections,
 } from "./ccs";
 
 const packageJson = vscode.extensions.getExtension(extensionId).packageJSON;
@@ -476,7 +478,10 @@ export async function checkConnection(
       panel.tooltip = new vscode.MarkdownString(`Connected as \`${username}\``);
     }
     inactiveServerIds.delete(api.serverId);
-    if (!api.externalServer) await setConnectionState(configName, true);
+    if (!api.externalServer) {
+      await setConnectionState(configName, true);
+      await activateSiblingFolders(host, port);
+    }
     return;
   };
 
@@ -1474,6 +1479,75 @@ export async function activate(context: vscode.ExtensionContext): Promise<any> {
       sendCommandTelemetryEvent("explorer.project.refresh");
       projectsExplorerProvider.refresh();
     }),
+    vscode.commands.registerCommand("vscode-objectscript.ccs.activateNamespaceConnections", async () => {
+      sendCommandTelemetryEvent("ccs.activateNamespaceConnections");
+      await vscode.window.withProgress(
+        {
+          location: vscode.ProgressLocation.Notification,
+          title: "Reativando conexões de namespaces...",
+          cancellable: false,
+        },
+        async () => {
+          const result = await reactivateNamespaceConnections();
+          if (!result.success) {
+            vscode.window.showErrorMessage(result.errorMessage ?? "Falha ao reativar as conexões de namespaces.");
+            return;
+          }
+          if (result.activatedFolderUris.length === 0) {
+            vscode.window.showInformationMessage("Todas as conexões de namespace já estão ativas.");
+            return;
+          }
+
+          // Valida cada folder reativado com AtelierAPI antes de confirmar o sucesso
+          let successCount = 0;
+          const failureMessages: string[] = [];
+
+          for (const folderUri of result.activatedFolderUris) {
+            const { apiTarget, configName } = connectionTarget(folderUri);
+            const api = new AtelierAPI(apiTarget, false);
+            try {
+              await api.serverInfo(true, 5000);
+              successCount++;
+            } catch (error: any) {
+              // Reverte: a conexão não está realmente funcional
+              await setConnectionState(configName, false);
+
+              // Monta mensagem descritiva do problema
+              const label = configName || folderUri.fsPath;
+              let reason: string;
+              if (!error || (typeof error === "object" && Object.keys(error).length === 0)) {
+                reason = "configurações inválidas — verifique host, porta e namespace";
+              } else if (error?.code === "WrongNamespace") {
+                reason = `namespace '${api.config.ns}' não encontrado no servidor`;
+              } else if (error?.statusCode === 401 || error?.statusCode === 403) {
+                reason = "credenciais inválidas — verifique usuário e senha";
+              } else if (["ECONNREFUSED", "ENOTFOUND", "EADDRNOTAVAIL"].includes(error?.code)) {
+                reason = "servidor inacessível — verifique host e porta";
+              } else if (["ECONNABORTED", "ERR_CANCELED", "ETIMEDOUT"].includes(error?.code)) {
+                reason = "tempo limite excedido — servidor não respondeu";
+              } else {
+                reason = error?.message ?? "erro desconhecido";
+              }
+              failureMessages.push(`• ${label}: ${reason}`);
+            }
+          }
+
+          if (successCount === 0) {
+            vscode.window.showErrorMessage(
+              `Não foi possível reativar as conexões de namespace. Verifique as configurações:\n${failureMessages.join("\n")}`
+            );
+          } else if (failureMessages.length > 0) {
+            vscode.window.showWarningMessage(
+              `${successCount} namespace${successCount !== 1 ? "s" : ""} reativado${successCount !== 1 ? "s" : ""} com sucesso. ${failureMessages.length} com erro:\n${failureMessages.join("\n")}`
+            );
+          } else {
+            vscode.window.showInformationMessage(
+              `${successCount} namespace${successCount !== 1 ? "s" : ""} reativado${successCount !== 1 ? "s" : ""} com sucesso.`
+            );
+          }
+        }
+      );
+    }),
     // Register the vscode-objectscript.explorer.open command elsewhere
     registerExplorerOpen(),
     vscode.commands.registerCommand("vscode-objectscript.explorer.export", (item, items) => {