Hash Sum Mismatch

I already have two servers using the z-push repos. I just created a third and I’m using the exact same apt file but I get an error:

E: Failed to fetch http://repo.z-hub.io/z-push:/final/Ubuntu_16.04/Packages.gz  Hash Sum mismatch
E: Some index files failed to download. They have been ignored, or old ones used instead.

I have tried running:

rm -rf /var/lib/apt/lists/*
apt clean
apt update

But I keep getting the same error?? Any ideas?

Thanks
Bob

Are you behind a proxy or something similar?

Good man! That was it exactly. One of the 3 proxies we have was misconfigured and it was dumb chance it worked in the first place.

Thanks
Bob