Speed decreases from 100k to 15k due to various factors. - What caused it?
Speed decreases from 100k to 15k due to various factors. - What caused it?
Hello, here are some thoughts you might find useful: Your setup seems to be functioning well at around 100 kbit/s, which is quite good for German standards. You ran multiple speed tests and confirmed the download speeds. However, after a few minutes of downloading at high speeds, the connection drops to 15–20 kbit/s and stays there. Could it be related to the outlet or the cables behind the wall? I’m not an expert, but any suggestion—even simple ones—would be appreciated. Also, you mentioned switching the outlet and it improved; that’s helpful information. Please keep updating the thread.
It isn't my residence, yet I can note it's quite old. I reside in a large metropolitan area. UPDATE: I changed the outlet and immediately returned to 80-100k. After the download and speed testing, it appears stable at that level. I'm worried about eventual drops, but I'll keep this discussion current. Edited April 13, 2019 by Alchibiades News on the matter. 
Have you introduced any fresh gadgets into your residence? Certain items may disrupt the electrical flow and interfere with data transmission for powerline adapters. Additionally, outdated wiring can also lead to similar complications.