This was mine. I collect linux ISO’s and realized speeds were slower than normal in Qbittorrent. It would always reach near 100mbps and nothing more.
- I tried multiple different ports and making sure they’re port forwarded.
- I tried different settings to see if I screwed something up.
- My synology nas warned me I had now 20% free space left and I wondered if the warning caused it, so I changed it to warn me at 5% instead.
- I finally gave up and deleted Qbittorrent and config folders but still the issue persisted even with very well seeded torrents.
- Still with me? I realized my cable collection is old, I swapped out the Ethernet cable for another and now my whole download speed gets used! Like 800mbps
It seems the old Ethernet cable could only do so much speed.