The original post: /r/pcmasterrace by /u/First_GL on 2025-03-31 13:26:21.

Good morning everyone,

I’m facing a rather strange situation that I don’t know how to solve, nor do I understand what the issue is (if there even is one). I recently changed my internet connection, switching to Iliad with FTTH 2.5G (which, fun fact, I can’t actually use at 2.5G since the modem only has one 2.5G port, which is occupied by the ONT).

So far, so good, as I received a significant upgrade (I was coming from an FTTC 30 Mbps connection), but I’ve noticed some rather strange inconsistencies between the two speed tests I use.

The first one is Google’s speed test, which gives me 45 Mbps download and 45 Mbps upload.

The second one is Ookla’s speed test, which shows completely different results: 906 Mbps download and 232 Mbps upload.

Why is there such a huge difference between the two speed tests? This got me wondering because on Steam, my download speed maxes out at 26 MB/s, whereas it should be around 120 MB/s. My motherboard is a B550 Tomahawk, and I’m connected via cable.