On May 2021, our RPM repository has been suspended because it was hosted on Bintray which is no longer available.
All packages are now available on Github Releases page only.
https://github.com/multipath-tcp/mptcp/releases
Please download them and install them manually.
Feel free to click on the "Watch" button the repository to get notifications when new versions are available.
Note: only x86_64 packages are available.