Added a new keyword Launch Browser And Navigate To Network Page.

Changes :-
    - Added new keyword Launch Browser And Navigate To Network Page
    - Reason : As per new change after updating hostname,bmc gui gets logout.
               Above keyword will fix the issue to relogin and verify changes.

Tested :-
    - Successfully ran this from /gui/gui_test/settings_menu/test_network_sub_menu.robot

Change-Id: Ied934dadef16d0c4d83701d629cfcbbb834801a0
Signed-off-by: rramyasr-in <rramyasr@in.ibm.com>
diff --git a/gui/gui_test/settings_menu/test_network_sub_menu.robot b/gui/gui_test/settings_menu/test_network_sub_menu.robot
index 75751fe..71d49f3 100644
--- a/gui/gui_test/settings_menu/test_network_sub_menu.robot
+++ b/gui/gui_test/settings_menu/test_network_sub_menu.robot
@@ -211,6 +211,16 @@
     ${default_gateway}=  Get BMC Default Gateway
     Set Suite Variable  ${default_gateway}
 
+Launch Browser Login GUI And Navigate To Network Page
+    [Documentaion]  Launch browser Login GUI and navigate to network page.
+
+    Launch Browser And Login GUI
+    Wait Until Keyword Succeeds  1 min  15 sec
+    ...  Click Element  ${xpath_settings_menu}
+    Click Element  ${xpath_network_sub_menu}
+    Wait Until Keyword Succeeds  30 sec  10 sec  Location Should Contain  network
+    Wait Until Element Is Not Visible   ${xpath_page_loading_progress_bar}  timeout=30
+
 Configure the Hostname Back And Verify
     [Documentation]  Configure the hostname back.
 
@@ -272,4 +282,8 @@
     Wait Until Keyword Succeeds  30 sec  10 sec  Click Element  ${xpath_nw_settings}
     Input Text  ${xpath_nw_settings_input_field}  ${input_value}
     Click Button  ${xpath_save_button}
+
+    # Re-Login gui and navigate to network page.
+    Launch Browser Login GUI And Navigate To Network Page
+
     Wait Until Page Contains  ${input_value}  timeout=30sec