Help & troubleshooting for network issues, including connecting your device to your home Wi-Fi network, connecting to public networks, troubleshooting wireless issues & ethernet connections, and optimizing streaming performance.
The Roku app can only be used for a Roku that is already connected to the local network, and to set that up that you'll need a remote. The 2500 is pretty old, having been released in 2012, but Roku has not changed its set of infrared control codes since then. Any inexpensive universal IR remote you find at the dollar store or Walmart will work, as long as it lists that it supports Roku.
Roku Streaming Stick +, 3810X, Ser YH0059427035, wifi - Samsung UN55ES6100
Roku Streaming Stick, 3600X, Ser 5S56D8240827, wifi - JVC EM37T