diff --git a/app/src/actions/Connection.ts b/app/src/actions/Connection.ts
index 2058527..77bb979 100644
--- a/app/src/actions/Connection.ts
+++ b/app/src/actions/Connection.ts
@@ -5,16 +5,19 @@ import { rendererEvents, addMqttConnectionEvent, makeConnectionStateEvent, remov
 import { AppState } from '../reducers'
 import * as q from '../../../backend/src/Model'
 import { showTree } from './Tree'
+import * as url from 'url'
 
 export const connect = (options: MqttOptions, connectionId: string) => (dispatch: Dispatch<any>, getState: () => AppState) => {
   dispatch(connecting(connectionId))
   rendererEvents.emit(addMqttConnectionEvent, { options, id: connectionId })
   const event = makeConnectionStateEvent(connectionId)
+  const host = url.parse(options.url).hostname
+
   rendererEvents.subscribe(event, (dataSourceState) => {
     if (dataSourceState.connected) {
       const tree = new q.Tree()
       tree.updateWithConnection(rendererEvents, connectionId)
-      dispatch(connected(tree))
+      dispatch(connected(tree, host!))
       dispatch(showTree(tree))
     } else if (dataSourceState.error) {
       dispatch(showError(dataSourceState.error))
@@ -23,8 +26,9 @@ export const connect = (options: MqttOptions, connectionId: string) => (dispatch
   })
 }
 
-export const connected: (tree: q.Tree) => Action = (tree: q.Tree)  => ({
+export const connected: (tree: q.Tree, host: string) => Action = (tree: q.Tree, host: string)  => ({
   tree,
+  host,
   type: ActionTypes.CONNECTION_SET_CONNECTED,
 })
 
diff --git a/app/src/actions/Settings.ts b/app/src/actions/Settings.ts
index 5a4952c..163af95 100644
--- a/app/src/actions/Settings.ts
+++ b/app/src/actions/Settings.ts
@@ -26,23 +26,20 @@ export const setTopicOrder = (topicOrder: TopicOrder = TopicOrder.none): Action
 }
 
 export const filterTopics = (filterStr: string) => (dispatch: Dispatch<any>, getState: () => AppState)  => {
-  const topicFilter = filterStr.toLowerCase()
+  const { tree } = getState().connection
 
   dispatch({
-    topicFilter,
+    topicFilter: filterStr,
     type: ActionTypes.SETTINGS_FILTER_TOPICS,
   })
 
-  const { tree } = getState().connection
-  if (!tree) {
-    return
-  }
-
-  if (!topicFilter) {
+  if (!filterStr || !tree) {
     dispatch(showTree(tree))
     return
   }
 
+  const topicFilter = filterStr.toLowerCase()
+
   const nodeFilter = (node: q.TreeNode): boolean => {
     const topicMatches = node.path().toLowerCase().indexOf(topicFilter) !== -1
     if (topicMatches) {
diff --git a/app/src/components/Sidebar/Publish/Publish.tsx b/app/src/components/Sidebar/Publish/Publish.tsx
index 113ef83..8c1921f 100644
--- a/app/src/components/Sidebar/Publish/Publish.tsx
+++ b/app/src/components/Sidebar/Publish/Publish.tsx
@@ -32,6 +32,7 @@ import Clear from '@material-ui/icons/Clear'
 import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
 import { publishActions } from '../../../actions'
+import ClearAdornment from '../../helper/ClearAdornment';
 
 interface Props {
   node?: q.TreeNode
@@ -114,7 +115,7 @@ class Publish extends React.Component<Props, State> {
               id="publish-topic"
               value={topicStr}
               startAdornment={<span/>}
-              endAdornment={<IconButton style={{ padding: '4px' }} onClick={this.clearTopic}><Clear style={{ fontSize: '14px' }} /></IconButton>}
+              endAdornment={<ClearAdornment action={this.clearTopic} value={topicStr} />}
               onBlur={this.onTopicBlur}
               onChange={this.updateTopic}
               multiline={true}
diff --git a/app/src/components/TitleBar.tsx b/app/src/components/TitleBar.tsx
index 9e57a9a..ff5cc7c 100644
--- a/app/src/components/TitleBar.tsx
+++ b/app/src/components/TitleBar.tsx
@@ -12,6 +12,7 @@ import { connect } from 'react-redux'
 import { fade } from '@material-ui/core/styles/colorManipulator'
 import { settingsActions, connectionActions } from '../actions'
 import { AppState } from '../reducers'
+import ClearAdornment from './helper/ClearAdornment';
 
 const styles: StyleRulesCallback = theme => ({
   title: {
@@ -36,7 +37,7 @@ const styles: StyleRulesCallback = theme => ({
     },
   },
   searchIcon: {
-    width: theme.spacing.unit * 9,
+    width: theme.spacing.unit * 8,
     height: '100%',
     position: 'absolute',
     pointerEvents: 'none',
@@ -100,7 +101,7 @@ class TitleBar extends React.Component<Props, {}> {
   }
 
   private renderSearch() {
-    const { classes } = this.props
+    const { classes, topicFilter } = this.props
 
     return (
       <div className={classes.search}>
@@ -108,15 +109,20 @@ class TitleBar extends React.Component<Props, {}> {
           <Search />
         </div>
         <InputBase
-          value={this.props.topicFilter}
+          value={topicFilter}
           onChange={this.onFilterChange}
           placeholder="Search…"
+          endAdornment={<div style={{ width: '24px', paddingRight: '8px' }}><ClearAdornment action={this.clearFilter} value={topicFilter} /></div>}
           classes={{ root: classes.inputRoot, input: classes.inputInput }}
         />
       </div>
     )
   }
 
+  private clearFilter = () => {
+    this.props.actions.settings.filterTopics('')
+  }
+
   private onFilterChange = (event: React.ChangeEvent<HTMLInputElement>) => {
     this.props.actions.settings.filterTopics(event.target.value)
   }
diff --git a/app/src/components/Tree/Tree.tsx b/app/src/components/Tree/Tree.tsx
index f792f35..50305fa 100644
--- a/app/src/components/Tree/Tree.tsx
+++ b/app/src/components/Tree/Tree.tsx
@@ -18,6 +18,7 @@ interface Props {
   connectionId?: string
   tree?: q.Tree
   filter: string
+  host?: string
 }
 
 class Tree extends React.Component<Props, {}> {
@@ -90,7 +91,7 @@ class Tree extends React.Component<Props, {}> {
           animateChages={true}
           isRoot={true}
           treeNode={tree}
-          name={'"root"'}
+          name={this.props.host}
           lastUpdate={tree.lastUpdate}
           collapsed={false}
           performanceCallback={this.performanceCallback}
@@ -109,6 +110,7 @@ const mapStateToProps = (state: AppState) => {
     autoExpandLimit: state.settings.autoExpandLimit,
     tree: state.tree.tree,
     filter: state.tree.filter,
+    host: state.connection.host,
   }
 }
 
diff --git a/app/src/components/helper/ClearAdornment.tsx b/app/src/components/helper/ClearAdornment.tsx
new file mode 100644
index 0000000..7a7a759
--- /dev/null
+++ b/app/src/components/helper/ClearAdornment.tsx
@@ -0,0 +1,25 @@
+import * as React from 'react'
+import { IconButton } from '@material-ui/core'
+import Clear from '@material-ui/icons/Clear'
+
+interface Props {
+  value?: string
+  action: any
+  style?: React.CSSProperties
+}
+
+class ClearAdornment extends React.Component<Props, {}> {
+  public render() {
+    if (this.props.value) {
+      return (
+        <IconButton style={{ ...this.props.style, padding: '1px' }} onClick={this.props.action}>
+          <Clear style={{ fontSize: '16px' }} />
+        </IconButton>
+      )
+    }
+
+    return null
+  }
+}
+
+export default ClearAdornment
diff --git a/app/src/reducers/Connection.ts b/app/src/reducers/Connection.ts
index 87cfb0a..561abb4 100644
--- a/app/src/reducers/Connection.ts
+++ b/app/src/reducers/Connection.ts
@@ -4,6 +4,7 @@ import * as q from '../../../backend/src/Model'
 import { MqttOptions } from '../../../backend/src/DataSource'
 
 export interface ConnectionState {
+  host?: string
   tree?: q.Tree
   connectionOptions?: MqttOptions
   connectionId?: string
@@ -28,6 +29,7 @@ export interface SetConnecting {
 
 export interface SetConnected {
   type: ActionTypes.CONNECTION_SET_CONNECTED
+  host: string
   tree: q.Tree
 }
 
@@ -52,7 +54,7 @@ export const connectionReducer = createReducer(initialState, {
   CONNECTION_SET_SHOW_ERROR: showError,
 })
 
-function setConnecting(state: ConnectionState, action: SetConnecting) {
+function setConnecting(state: ConnectionState, action: SetConnecting): ConnectionState {
   return {
     ...state,
     connecting: true,
@@ -61,18 +63,20 @@ function setConnecting(state: ConnectionState, action: SetConnecting) {
   }
 }
 
-function setConnected(state: ConnectionState, action: SetConnected) {
+function setConnected(state: ConnectionState, action: SetConnected): ConnectionState {
   return {
     ...state,
+    host: action.host,
     connecting: false,
     connected: true,
     tree: action.tree,
   }
 }
 
-function setDisconnected(state: ConnectionState, action: SetDisconnected) {
+function setDisconnected(state: ConnectionState, action: SetDisconnected): ConnectionState {
   return {
     ...state,
+    host: undefined,
     connecting: false,
     connected: false,
     connectionId: undefined,