I tried reducing the publishing frequency of my costmaps, still no luck. I have a working sim (using stage) running on the robot without these issues, so I will start replacing simulated robot parts with hardware ones and see where it breaks. Thanks for your help, -Zac -- View this message in context: http://ros-users.122217.n3.nabble.com/Costmap2DROS-timeouts-and-poor-amcl-performance-tp2112835p2120859.html Sent from the ROS-Users mailing list archive at Nabble.com.