diff --git a/client/src/actions/index.js b/client/src/actions/index.js
index 949e3a5d..e6a2a6c8 100644
--- a/client/src/actions/index.js
+++ b/client/src/actions/index.js
@@ -352,11 +352,11 @@ export const refreshFiltersFailure = createAction('FILTERING_REFRESH_FAILURE');
 export const refreshFiltersSuccess = createAction('FILTERING_REFRESH_SUCCESS');
 
 export const refreshFilters = () => async (dispatch) => {
-    dispatch(refreshFiltersRequest);
+    dispatch(refreshFiltersRequest());
     dispatch(showLoading());
     try {
         const refreshText = await apiClient.refreshFilters();
-        dispatch(refreshFiltersSuccess);
+        dispatch(refreshFiltersSuccess());
 
         if (refreshText.includes('OK')) {
             if (refreshText.includes('OK 0')) {
diff --git a/client/src/components/App/index.css b/client/src/components/App/index.css
index fe3d81d3..61ee53a4 100644
--- a/client/src/components/App/index.css
+++ b/client/src/components/App/index.css
@@ -19,7 +19,9 @@ body {
 }
 
 .loading-bar {
-    position: absolute;
+    position: fixed;
+    top: 0;
+    left: 0;
     z-index: 103;
     height: 3px;
     background: linear-gradient(45deg, rgba(99, 125, 120, 1) 0%, rgba(88, 177, 101, 1) 100%);
diff --git a/client/src/components/Dashboard/index.js b/client/src/components/Dashboard/index.js
index 767e8d1a..2016b16f 100644
--- a/client/src/components/Dashboard/index.js
+++ b/client/src/components/Dashboard/index.js
@@ -25,12 +25,17 @@ class Dashboard extends Component {
     }
 
     getToggleFilteringButton = () => {
-        const { protectionEnabled } = this.props.dashboard;
+        const { protectionEnabled, processingProtection } = this.props.dashboard;
         const buttonText = protectionEnabled ? 'disable_protection' : 'enable_protection';
         const buttonClass = protectionEnabled ? 'btn-gray' : 'btn-success';
 
         return (
-            <button type="button" className={`btn btn-sm mr-2 ${buttonClass}`} onClick={() => this.props.toggleProtection(protectionEnabled)}>
+            <button
+                type="button"
+                className={`btn btn-sm mr-2 ${buttonClass}`}
+                onClick={() => this.props.toggleProtection(protectionEnabled)}
+                disabled={processingProtection}
+            >
                 <Trans>{buttonText}</Trans>
             </button>
         );
@@ -125,6 +130,7 @@ Dashboard.propTypes = {
     isCoreRunning: PropTypes.bool,
     getFiltering: PropTypes.func,
     toggleProtection: PropTypes.func,
+    processingProtection: PropTypes.bool,
     t: PropTypes.func,
 };
 
diff --git a/client/src/components/Filters/index.js b/client/src/components/Filters/index.js
index dd690e7e..339bc673 100644
--- a/client/src/components/Filters/index.js
+++ b/client/src/components/Filters/index.js
@@ -68,7 +68,7 @@ class Filters extends Component {
 
     render() {
         const { t } = this.props;
-        const { filters, userRules } = this.props.filtering;
+        const { filters, userRules, processingRefreshFilters } = this.props.filtering;
         return (
             <div>
                 <PageTitle title={ t('filters') } />
@@ -95,8 +95,21 @@ class Filters extends Component {
                                     noDataText={ t('no_filters_added') }
                                 />
                                 <div className="card-actions">
-                                    <button className="btn btn-success btn-standart mr-2" type="submit" onClick={this.props.toggleFilteringModal}><Trans>add_filter_btn</Trans></button>
-                                    <button className="btn btn-primary btn-standart" type="submit" onClick={this.props.refreshFilters}><Trans>check_updates_btn</Trans></button>
+                                    <button
+                                        className="btn btn-success btn-standart mr-2"
+                                        type="submit"
+                                        onClick={this.props.toggleFilteringModal}
+                                    >
+                                        <Trans>add_filter_btn</Trans>
+                                    </button>
+                                    <button
+                                        className="btn btn-primary btn-standart"
+                                        type="submit"
+                                        onClick={this.props.refreshFilters}
+                                        disabled={processingRefreshFilters}
+                                    >
+                                        <Trans>check_updates_btn</Trans>
+                                    </button>
                                 </div>
                             </Card>
                         </div>
@@ -114,6 +127,7 @@ class Filters extends Component {
                     toggleModal={this.props.toggleFilteringModal}
                     addFilter={this.props.addFilter}
                     isFilterAdded={this.props.filtering.isFilterAdded}
+                    processingAddFilter={this.props.filtering.processingAddFilter}
                     title={ t('new_filter_btn') }
                     inputDescription={ t('enter_valid_filter_url') }
                 />
@@ -130,6 +144,8 @@ Filters.propTypes = {
         filters: PropTypes.array,
         isFilteringModalOpen: PropTypes.bool.isRequired,
         isFilterAdded: PropTypes.bool,
+        processingAddFilter: PropTypes.bool,
+        processingRefreshFilters: PropTypes.bool,
     }),
     removeFilter: PropTypes.func.isRequired,
     toggleFilterStatus: PropTypes.func.isRequired,
diff --git a/client/src/components/Logs/index.js b/client/src/components/Logs/index.js
index 6d1c9ac4..2499c1f1 100644
--- a/client/src/components/Logs/index.js
+++ b/client/src/components/Logs/index.js
@@ -77,6 +77,7 @@ class Logs extends Component {
                     type="button"
                     className={`btn btn-sm ${buttonClass}`}
                     onClick={() => this.toggleBlocking(buttonType, domain)}
+                    disabled={this.props.filtering.processingRules}
                 >
                     <Trans>{buttonText}</Trans>
                 </button>
@@ -269,7 +270,7 @@ class Logs extends Component {
         saveAs(dataBlob, DOWNLOAD_LOG_FILENAME);
     };
 
-    renderButtons(queryLogEnabled) {
+    renderButtons(queryLogEnabled, logStatusProcessing) {
         if (queryLogEnabled) {
             return (
                 <Fragment>
@@ -277,6 +278,7 @@ class Logs extends Component {
                         className="btn btn-gray btn-sm mr-2"
                         type="submit"
                         onClick={() => this.props.toggleLogStatus(queryLogEnabled)}
+                        disabled={logStatusProcessing}
                     ><Trans>disabled_log_btn</Trans></button>
                     <button
                         className="btn btn-primary btn-sm mr-2"
@@ -297,6 +299,7 @@ class Logs extends Component {
                 className="btn btn-success btn-sm mr-2"
                 type="submit"
                 onClick={() => this.props.toggleLogStatus(queryLogEnabled)}
+                disabled={logStatusProcessing}
             ><Trans>enabled_log_btn</Trans></button>
         );
     }
@@ -308,7 +311,7 @@ class Logs extends Component {
             <Fragment>
                 <PageTitle title={ t('query_log') } subtitle={ t('last_dns_queries') }>
                     <div className="page-title__actions">
-                        {this.renderButtons(queryLogEnabled)}
+                        {this.renderButtons(queryLogEnabled, dashboard.logStatusProcessing)}
                     </div>
                 </PageTitle>
                 <Card>
@@ -332,6 +335,8 @@ Logs.propTypes = {
     userRules: PropTypes.string,
     setRules: PropTypes.func,
     addSuccessToast: PropTypes.func,
+    processingRules: PropTypes.bool,
+    logStatusProcessing: PropTypes.bool,
     t: PropTypes.func,
 };
 
diff --git a/client/src/components/Settings/Dhcp/index.js b/client/src/components/Settings/Dhcp/index.js
index 3beb136f..eed256a6 100644
--- a/client/src/components/Settings/Dhcp/index.js
+++ b/client/src/components/Settings/Dhcp/index.js
@@ -23,7 +23,7 @@ class Dhcp extends Component {
     }
 
     getToggleDhcpButton = () => {
-        const { config, active } = this.props.dhcp;
+        const { config, active, processingDhcp } = this.props.dhcp;
         const activeDhcpFound = active && active.found;
         const filledConfig = Object.keys(config).every((key) => {
             if (key === 'enabled') {
@@ -39,6 +39,7 @@ class Dhcp extends Component {
                     type="button"
                     className="btn btn-standart mr-2 btn-gray"
                     onClick={() => this.props.toggleDhcp(config)}
+                    disabled={processingDhcp}
                 >
                     <Trans>dhcp_disable</Trans>
                 </button>
@@ -50,7 +51,7 @@ class Dhcp extends Component {
                 type="button"
                 className="btn btn-standart mr-2 btn-success"
                 onClick={() => this.handleToggle(config)}
-                disabled={!filledConfig || activeDhcpFound}
+                disabled={!filledConfig || activeDhcpFound || processingDhcp}
             >
                 <Trans>dhcp_enable</Trans>
             </button>
diff --git a/client/src/components/ui/Modal.js b/client/src/components/ui/Modal.js
index 3c93c257..a19ed3ac 100644
--- a/client/src/components/ui/Modal.js
+++ b/client/src/components/ui/Modal.js
@@ -55,6 +55,7 @@ class Modal extends Component {
             isOpen,
             title,
             inputDescription,
+            processingAddFilter,
         } = this.props;
         const { isUrlValid, url, name } = this.state;
         const inputUrlClass = classnames({
@@ -71,8 +72,8 @@ class Modal extends Component {
             if (!this.props.isFilterAdded) {
                 return (
                     <React.Fragment>
-                        <input type="text" className={inputNameClass} placeholder={ this.props.t('enter_name_hint') } onChange={this.handleNameChange} />
-                        <input type="text" className={inputUrlClass} placeholder={ this.props.t('enter_url_hint') } onChange={this.handleUrlChange} />
+                        <input type="text" className={inputNameClass} placeholder={this.props.t('enter_name_hint')} onChange={this.handleNameChange} />
+                        <input type="text" className={inputUrlClass} placeholder={this.props.t('enter_url_hint')} onChange={this.handleUrlChange} />
                         {inputDescription &&
                             <div className="description">
                                 {inputDescription}
@@ -93,7 +94,7 @@ class Modal extends Component {
             <ReactModal
                 className="Modal__Bootstrap modal-dialog modal-dialog-centered"
                 closeTimeoutMS={0}
-                isOpen={ isOpen }
+                isOpen={isOpen}
                 onRequestClose={this.closeModal}
             >
                 <div className="modal-content">
@@ -106,14 +107,26 @@ class Modal extends Component {
                     </button>
                     </div>
                     <div className="modal-body">
-                        { renderBody()}
+                        {renderBody()}
                     </div>
-                    {
-                        !this.props.isFilterAdded &&
-                            <div className="modal-footer">
-                                <button type="button" className="btn btn-secondary" onClick={this.closeModal}><Trans>cancel_btn</Trans></button>
-                                <button type="button" className="btn btn-success" onClick={this.handleNext} disabled={isValidForSubmit}><Trans>add_filter_btn</Trans></button>
-                            </div>
+                    {!this.props.isFilterAdded &&
+                        <div className="modal-footer">
+                            <button
+                                type="button"
+                                className="btn btn-secondary"
+                                onClick={this.closeModal}
+                            >
+                                <Trans>cancel_btn</Trans>
+                            </button>
+                            <button
+                                type="button"
+                                className="btn btn-success"
+                                onClick={this.handleNext}
+                                disabled={isValidForSubmit || processingAddFilter}
+                            >
+                                <Trans>add_filter_btn</Trans>
+                            </button>
+                        </div>
                     }
                 </div>
             </ReactModal>
@@ -128,6 +141,7 @@ Modal.propTypes = {
     inputDescription: PropTypes.string,
     addFilter: PropTypes.func.isRequired,
     isFilterAdded: PropTypes.bool,
+    processingAddFilter: PropTypes.bool,
     t: PropTypes.func,
 };
 
diff --git a/client/src/reducers/index.js b/client/src/reducers/index.js
index fc202a0b..1b770adc 100644
--- a/client/src/reducers/index.js
+++ b/client/src/reducers/index.js
@@ -140,8 +140,14 @@ const dashboard = handleActions({
         return newState;
     },
 
+    [actions.toggleProtectionRequest]: state => ({ ...state, processingProtection: true }),
+    [actions.toggleProtectionFailure]: state => ({ ...state, processingProtection: false }),
     [actions.toggleProtectionSuccess]: (state) => {
-        const newState = { ...state, protectionEnabled: !state.protectionEnabled };
+        const newState = {
+            ...state,
+            protectionEnabled: !state.protectionEnabled,
+            processingProtection: false,
+        };
         return newState;
     },
 
@@ -164,6 +170,7 @@ const dashboard = handleActions({
     processingFiltering: true,
     upstreamDns: [],
     protectionEnabled: false,
+    processingProtection: false,
 });
 
 const queryLogs = handleActions({
@@ -228,6 +235,8 @@ const filtering = handleActions({
     isFilteringModalOpen: false,
     processingFilters: false,
     processingRules: false,
+    processingAddFilter: false,
+    processingRefreshFilters: false,
     filters: [],
     userRules: '',
 });
@@ -291,16 +300,19 @@ const dhcp = handleActions({
         processingStatus: false,
     }),
 
+    [actions.toggleDhcpRequest]: state => ({ ...state, processingDhcp: true }),
+    [actions.toggleDhcpFailure]: state => ({ ...state, processingDhcp: false }),
     [actions.toggleDhcpSuccess]: (state) => {
         const { config } = state;
         const newConfig = { ...config, enabled: !config.enabled };
-        const newState = { ...state, config: newConfig };
+        const newState = { ...state, config: newConfig, processingDhcp: false };
         return newState;
     },
 }, {
     processing: true,
     processingStatus: false,
     processingInterfaces: false,
+    processingDhcp: false,
     config: {
         enabled: false,
     },