I can able to activate the drop down and able to select the value from it sometimes but sometimes i can't able to select the option for the drop down and i am facing an timeout error.
Code:
driver.findElement(By.xpath("//*[@id='tabstrip-2']/div[1]/span/span/span[2]/span")).click();
Thread.sleep(15000);
driver.findElement(By.xpath("//*[@id='ddlschedule_listbox']/li[2]")).click();
Error: Exception in thread "main" org.openqa.selenium.ElementNotVisibleException: Element is not currently visible and so may not be interacted with Command duration or timeout: 35 milliseconds