We provide an experience report of the deployment and maintenance of urban computing infrastructure called UBI-hotspot. It is effectively a large interactive public display embedded with other computing resources such as access points of different wireless networks. We have installed a network of 12 UBI-hotspots in key indoor and outdoor locations around downtown Oulu, Finland. We describe the remote monitoring and management tools we have adopted for the maintenance of the UBI-hotspots. We conclude with a discussion on our lessons learned which should be valuable for other researchers planning similar deployments in public urban spaces.