# Troubleshooting Guide for [[OpenAFS]] for Windows
## What is this [[MrxSmb]] event 3019 that pops up in my System Log? The [[MrxSmb]] event 3019 is due to the use of the Loop Back device. It can be safely ignored. [JSI FAQ, 3136](http://www.jsiinc.com/SUBG/TIP3100/rh3136.htm)