A data router (110, 410) serves User Equipment (UEs) (101-103, 401-403) over network connections to network slices (131-132, 441-444). The router (110, 410) executes an operating system (116, 611), and in response, executes router applications (117-119, 612-617) in containers (113-115, 1001-1006). The router applications (117-119, 612-617) receive a container configuration, a connection configuration, and a slice configuration from the wireless communication network (100, 400). The router applications (117-119, 612-617) transfer the container configuration to the operating system (116, 611). The operating system (116, 611) controls processing qualities of the containers (113-115, 1001-1006) based on the container configuration. The router applications (117-119, 612-617) generate and transfer the performance information for the network connections to the wireless communication network (100, 400). The router applications (117-119, 612-617) prioritize the network connections to the network slices (131-132, 441-444) based on the slice configuration. The router applications (117-119, 612-617) exchange user data with the UEs (101-103, 401-403) and exchange the user data with the network slices (131-132, 441-444) over the network connections using service qualities based on the connection configuration.