Issue with downloading E.coli Nanopore data

[Bessyyi]

Hi,
I downloaded E.coli nanopore data from the European Nucleotide Archive (ENA) under accession PRJEB13021 (ERR1676719 for negative control and ERR1676720 for positive control) using Xunlei. The files were fully downloaded .
But while decompressing the downloaded files using tar, it is showing error like 'gzip: stdin: invalid compressed data--format violated' and tar: Skipping to next header and tar: Exiting with failure status due to previous errors.
tar commands :
tar -xvzf ecoli_er2925.pcr.r9.timp.061716.tar.gz
tar -xvzf ecoli_er2925.pcr_MSssI.r9.timp.061716.tar.gz

This happened with both the files negative as well as positive control.

Is there any better way to download these files?Or can you give me some suggestions to solve it ?