Which are you using (Inline 6, 7, Nexiq USB-Link 2, etc.)? What version of INSITE are you currently running?
If you are staring at this error on your laptop instead of diagnosing a diesel engine, you are not alone. This article breaks down exactly what the Cummins Insite Error 50005 Link means, why it happens, and a step-by-step methodology to fix it. cummins insite error 50005 link
Before diving into software settings, it is helpful to understand why this happens: Which are you using (Inline 6, 7, Nexiq USB-Link 2, etc
Confirm the adapter is receiving continuous battery power. If power is lost (e.g., from a cigarette lighter adapter when the key is turned), it can cause abrupt software crashes. Reference: Related Connection Errors Which are you using (Inline 6