[PlanetCCRMA] connection issues

[Be]

I tried to update to the new 4.4.9 RT kernel with DNF, but DNF did not 
find any updates. It shows the progress bar indicating that it is 
downloading updated repo data from planetccrma, but the progress bar 
stalls at 100% then exits with:

Failed to synchronize cache for repo 'planetccrma', disabling.
Failed to synchronize cache for repo 'planetcore', disabling.

I have tried running 'dnf clean metadata' but that didn't help. I 
manually downloaded the kernel-rt, kernel-rt-core, and kernel-rt-modules 
RPMs with wget. The connections didn't start downloading and timed out 
several times, but when the connection did go through, the packages 
downloaded quickly. I successfully installed the new packages with 'rpm 
-i'. Is anyone else having trouble connecting to the repo?