Visualforce redirect issue on forgot password link

I have a login page with username and password and forgot password link on salesforce community, when a user enters a wrong password it is throwing error. When the error is thrown and I click on the forgot password link the page is refreshing instead of redirecting to forgot password page. Can anyone help in resolving the issue?

public PageReference forgotpswd()
{
pageReference pg = new pageReference(/apex/pagename);
Page.setRedirect(true);
return pg;
}

Visualforce Page:

<apex:commandLink value="Forgot Password?" action="{!forgotpswd}" />