fasterq-dump only downloads certain runs?

Hey all,
I wrote a script in python that gets the SRR ids from a SRP id and then downloads all FASTQ files for every SRR.
How can it only work on some SRRs?

For example, SRP000124 provides these:

SRR954969
SRR001030

and downloads the FASTQ files as it should.
But, SRP234963 which provides much more SRRs:

SRR10600874
SRR10600875
.
.
.
SRR10600943
SRR10600944

gets stuck in the first SRR (SRR10600874) download.

Nothing crashes, it just gets stuck after executing the fasterq-dump command and waits forever.

The actual command is "fasterq-dump " + srr_id + ' --split-3' + ' -O /output/'

Any information you can provide for me will be much appreciated,
as you can tell this is my first project in this subject.

Thanks!