n-link VS Nspire-Library

Is this for the TI-84 Plus CE or TI Nspire CX? You can try ticalc.link or N-link https://lights0123.com/n-link/

Try using N-Link

Or even this should work https://lights0123.com/n-link/

That doesn't work all too well with Nspire series. Using TI's own online program or my N-Link are generally much more reliable.

If you actually have a Nspire CX II CAS then you can use the open source alternative N-Link: https://github.com/lights0123/n-link

I believe you only have to pay TI if you buy your Nspire used. New calculators come with a key in the box so you can activate the student software without a subscription. Even if you get a used one, there's an open source, free alternative called N-Link: https://github.com/lights0123/n-link It's what I use since I got my Nspire used and TI refused to provide a replacement student software key to me.

The Nspire CX II (CAS) will still work with any student software on any machine, it's not locked to a specific system. The issue is that TI will refuse to provide a student software key for used calculators unless you have the original receipt. I already went though this and my advice is, don't waste your time contacting them. There's an open source, free alternative called N-Link which works wayyyy better for transferring files and updating the calculator. I've personally been using it without issue: https://github.com/lights0123/n-link

For the CX-II this website works, although buggy at times: https://lights0123.com/n-link/