No Mutants Allowed

Meanwhile the other mods got downloaded in a flash. WTF is wrong with YUP?!

Sometimes cancelling a download and restarting it after rebooting the modem can help. I know because the internet is terrible when I’m at my parents’.

You could try using this script, see if it helps:
https://github.com/randomtdev/nexusmods_downloadfix

@Risewild thanks. Unfortunately, something really fucking weird is happening; my own laptops could access the Nexus Mods just fine. However, my brother's PC where I'm trying to mod New Vegas is unbearably slow at accessing the site. It's been getting Network Error for both YUP and UP+ modpage. Do you happen to know any fix for this?