Expression 2 or 3 Locking Up or Freezing Last updated Save as PDF Symptoms/Issue Console or LPC is locking up or freezing Applies to Insight 2, Insight 3, Expression 2, Expression 3, Insight 3 LPC, and Expression 3 LPC. Description/Explanation of Issue There can be many reasons why a console or LPC is locking up, very few of which can be tested in the field. Please contact ETC for options. Often this is an intermittent issue that might be difficult to troubleshoot.