Repository timeout on different ISPs

Hello There.

My system is highly dependent on old kernel 4.18.0-425.3.1 due to the parallel filesystem.
The Basic Rocky Linux repository doesn’t provide this kernel anymore, so the automation system uses URLs to download.
Lately, processes are failing due to timeout, the 22MB package download takes 10 mins. Is this related to mirrors? Does anyone have any alternative approach other than creating a local repository?
One example link:
https://dl.rockylinux.org/vault/rocky/8.7/BaseOS/x86_64/os/Packages/k/kernel-devel-4.18.0-425.3.1.el8.x86_64.rpm

Best regards!

Something going on, because i’m having “issues” on installing packages as well.

You can try one of the vault mirrors listed in https://mirrors.rockylinux.org/mirrormanager/mirrors (I see 5 currently)

For example:
http://mirror.nju.edu.cn/rocky-vault/8.7/BaseOS/x86_64/os/Packages/k/kernel-devel-4.18.0-425.3.1.el8.x86_64.rpm

I have strict outbound FW rules, so I need to enable them individually. But that will do the job until the next URL fails
Thank you!