diff --git a/client/internal/gui/include/SolutionsWindow.h b/client/internal/gui/include/SolutionsWindow.h
index df2f09db91bb0346b03a4d15a0f7d0bea3370b9c..889c0072e7aa73602623a373fbff21ca40ca0294 100755
--- a/client/internal/gui/include/SolutionsWindow.h
+++ b/client/internal/gui/include/SolutionsWindow.h
@@ -10,8 +10,36 @@
 #include <QLabel>
 #include <QFileDialog>
 #include <QTextEdit>
+#include <QThread>
 #include "Task.h"
 #include "TasksWindow.h"
+#include "Solution.h"
+#include "Core.h"
+
+class SolutionDownloadTask : public QObject {
+Q_OBJECT
+public:
+    SolutionDownloadTask(const int& task_id, const std::string& filename, const std::string& path_to_file)
+        : task_id(task_id), filename(filename), path_to_file(path_to_file) {}
+
+    ~SolutionDownloadTask() {
+        qDebug() << "DownloadTask die";
+    }
+
+public slots:
+    void Start() {
+        std::pair<Solution, Solution::Codes> result = Core::submitSolution(task_id, filename, path_to_file);
+        emit Ready(result);
+    }
+
+signals:
+    void Ready(std::pair<Solution, Solution::Codes> data);
+
+private:
+    int task_id;
+    std::string filename;
+    std::string path_to_file;
+};
 
 class SolutionsWindow : public QMainWindow {
 Q_OBJECT
@@ -23,6 +51,7 @@ private slots:
     void on_backButton_clicked();
     void on_chooseFileButton_clicked();
     void on_sendButton_clicked();
+    void on_solutionData_ready(std::pair<Solution, Solution::Codes> data);
 
 private:
 
@@ -45,6 +74,7 @@ private:
     QTextEdit* original = nullptr;
     QLabel* currentLabel = nullptr;
     QTextEdit* current = nullptr;
+    QThread thread;
 
     void setupUi(QMainWindow *UserWindow);
 };
diff --git a/client/internal/gui/src/SolutionsWindow.cpp b/client/internal/gui/src/SolutionsWindow.cpp
index 1e5cc813471215351f65dab7d80e5b04c622b738..a4ff2ea5bf4d5e2d8d7ae06bdc6c2742fa931a91 100755
--- a/client/internal/gui/src/SolutionsWindow.cpp
+++ b/client/internal/gui/src/SolutionsWindow.cpp
@@ -13,6 +13,7 @@ SolutionsWindow::SolutionsWindow(Task task, QWidget *parent) : QMainWindow(paren
     connect(backButton, &QPushButton::clicked, this, &SolutionsWindow::on_backButton_clicked);
     connect(chooseFileButton, &QPushButton::clicked, this, &SolutionsWindow::on_chooseFileButton_clicked);
     connect(sendButton, &QPushButton::clicked, this, &SolutionsWindow::on_sendButton_clicked);
+    thread.start();
 }
 
 void SolutionsWindow::setupUi(QMainWindow *SolutionsWindow) {
@@ -94,12 +95,28 @@ void SolutionsWindow::on_sendButton_clicked() {
         QMessageBox::warning(this, "Ошибка отправки", "Файл должен быть указан");
         return;
     }
+
+    SolutionDownloadTask* downloadTask;
+    downloadTask = new SolutionDownloadTask(task.id, filename->text().toUtf8().constData(), path_to_file);
+    downloadTask->moveToThread(&thread);
+
+    connect(downloadTask, &SolutionDownloadTask::Ready, this, &SolutionsWindow::on_solutionData_ready);
+    connect(downloadTask, &SolutionDownloadTask::Ready, downloadTask, &QObject::deleteLater);
+
+    QMetaObject::invokeMethod(downloadTask, [downloadTask]() {
+        downloadTask->Start();
+    });
+
+    result->setText(QString::fromStdString("Файл отправлен, идет обработка"));
+}
+
+void SolutionsWindow::on_solutionData_ready(std::pair<Solution, Solution::Codes> data) {
     Solution sol;
     Solution::Codes codes;
-    std::tie(sol, codes) = Core::submitSolution(task.id, filename->text().toUtf8().constData(), path_to_file);
+    std::tie(sol, codes) = data;
     result->setText(QString::fromStdString(sol.result));
-    original->setHtml(QString::fromUtf8(codes.original));
-    current->setHtml(QString::fromUtf8(codes.current));
+    original->setHtml(QString::fromStdString(codes.original));
+    current->setHtml(QString::fromStdString(codes.current));
 }
 
 
diff --git a/client/internal/httpClient/include/HttpClient.h b/client/internal/httpClient/include/HttpClient.h
index 42c5f6dcaf17be01c356a07040684fae932bb308..bfa2d5cfdb4dff34256fbc1de1e238f58d6ab0a1 100755
--- a/client/internal/httpClient/include/HttpClient.h
+++ b/client/internal/httpClient/include/HttpClient.h
@@ -4,6 +4,7 @@
 #include <utility>
 #include <memory>
 #include <string>
+#include <mutex>
 #include <boost/asio.hpp>
 #include <boost/beast.hpp>
 
@@ -30,6 +31,7 @@ private:
     beast::tcp_stream stream;
     std::string host;
     std::string port;
+    std::mutex mutex;
 };
 
 
diff --git a/client/internal/httpClient/src/HttpClient.cpp b/client/internal/httpClient/src/HttpClient.cpp
index 2dd02453ad3ba76c2e309a8e637f7eadee6339db..4c352363eaf6c0d1d5e83a770c350810085620e6 100755
--- a/client/internal/httpClient/src/HttpClient.cpp
+++ b/client/internal/httpClient/src/HttpClient.cpp
@@ -12,7 +12,11 @@ HttpClient::HttpClient(std::string_view host_, std::string_view port_) :
 http::response<http::dynamic_body> HttpClient::makeRequest(std::string_view target,
                                                            http::verb method,
                                                            std::string_view body) {
-    auto const results = resolver.resolve(host, port);
+    tcp::resolver::results_type results;
+    {
+        std::lock_guard _{mutex};
+        results = resolver.resolve(host, port);
+    }
     stream.connect(results);
     http::request<http::string_body> req{http::verb::get, target, 11};
     req.set(http::field::host, host);