I'm facing an issue with bufferbloat during ping tests on my network. I'm running a command like `ping x.x.x.x -f -l ####`, and I'm getting bufferbloat readings at 1500, 1480, 1460, and 1440. I've adjusted the MTU on my TP-Link Deco XE25 router to 1440 using the app. However, when testing again, I'm still encountering bufferbloat and find that I can't avoid fragmented packets until I drop the MTU to 1400. I have a 1gb symmetrical fiber connection, and my speed tests show I'm getting over 900 Mbps in both directions, so the speed isn't the issue. I'm looking for advice on how others have dealt with similar situations.
2 Answers
It sounds more like an MTU/MSS problem than actual bufferbloat. If you keep adjusting the MTU, you should see improvements. You might want to try lowering it gradually to see at what point you stop experiencing the issue. Sometimes fine-tuning these settings can make all the difference!
Have you reached out to your ISP yet? They might have solutions or be able to help diagnose the situation. I found that many times, ISPs can offer some insight on these kinds of problems. Especially if it's causing latency issues with video calls for you.
I tried contacting them, but their support hours are limited, just weekdays from 8 to 5. I've detected the bufferbloat using online tools and just want to find options until I can talk to them.