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+---- Thread: SOLVED: Remote connection extremely slow (/t-solved-remote-connection-extremely-slow)
Remote connection extremely slow - flo f - 2024-08-29
I noticed today that the connection over the internet (mobile network) is extremely slow. Streaming, downloading and just the UI, even the thumbnails of the media load extremely slow. I tried different devices both ios and android, and apps/browsers. I have jellyfin installed directly on debian stable, v10.9.10. The speedtest on the server and on the mobile devices is all fine, above 20 mbit/s, while the actual rate of loading jellyfin is more like in hundreds of kb/s. I usually use caddy with reverse proxy but I even set up a direct port forwarding to rule this out, same problem. No problems at all in LAN. I'm using a fritzbox as the main router. Please help, it's unusable.
RE: Remote connection extremely slow - TheDreadPirate - 2024-08-29
When you say "direct port forwarding" I'm assuming you mean you opened port 8096 on your router.
Do you know how to use Docker? Librespeed has a self-hosted speed test you could setup to make sure that the mobile<-->server speed is actually good. Each individual connection can be fast enough, but the route they take to each other can be problematic.
RE: Remote connection extremely slow - flo f - 2024-08-30
(2024-08-29, 10:00 PM)TheDreadPirate Wrote: When you say "direct port forwarding" I'm assuming you mean you opened port 8096 on your router.
Do you know how to use Docker? Librespeed has a self-hosted speed test you could setup to make sure that the mobile<-->server speed is actually good. Each individual connection can be fast enough, but the route they take to each other can be problematic.
Yes opened a port that jellyfin runs on, to bypass caddy, which runs on 80 and 443.
Thank you for the reply, you're right about the route. I ran iperf tcp test from different locations and it seems that the mobile network is the problem. Test #1 is LAN (wifi), #2 is mobile and #3 is from my work. Still, I would never have thought that it makes that much of a difference - when I run ookla speedtest or fast.com I'm getting much higher results on mobile (around 50 Mbps).
-----------------------------------------------------------
Server listening on 8097 (test #1)
-----------------------------------------------------------
Accepted connection from 192.168.178.68, port 54717
[ 5] local 192.168.178.84 port 8097 connected to 192.168.178.68 port 54718
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 55.6 MBytes 467 Mbits/sec
[ 5] 1.00-2.00 sec 58.9 MBytes 494 Mbits/sec
[ 5] 2.00-3.00 sec 62.6 MBytes 525 Mbits/sec
[ 5] 3.00-4.00 sec 63.3 MBytes 531 Mbits/sec
[ 5] 4.00-5.00 sec 63.6 MBytes 534 Mbits/sec
[ 5] 5.00-6.00 sec 63.6 MBytes 534 Mbits/sec
[ 5] 6.00-7.00 sec 62.4 MBytes 524 Mbits/sec
[ 5] 7.00-8.00 sec 63.3 MBytes 531 Mbits/sec
[ 5] 8.00-9.00 sec 62.6 MBytes 525 Mbits/sec
[ 5] 9.00-10.00 sec 63.6 MBytes 534 Mbits/sec
[ 5] 10.00-10.02 sec 1.31 MBytes 543 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.02 sec 621 MBytes 520 Mbits/sec receiver
-----------------------------------------------------------
Server listening on 8097 (test #2)
-----------------------------------------------------------
Accepted connection from <mobile_network>, port 15824
[ 5] local 192.168.178.84 port 8097 connected to <redacted> port 15831
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 1.28 MBytes 10.8 Mbits/sec
[ 5] 1.00-2.00 sec 231 KBytes 1.90 Mbits/sec
[ 5] 2.00-3.00 sec 1.97 MBytes 16.6 Mbits/sec
[ 5] 3.00-4.00 sec 55.2 KBytes 452 Kbits/sec
[ 5] 4.00-5.00 sec 455 KBytes 3.72 Mbits/sec
[ 5] 5.00-6.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 6.00-7.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 7.00-8.00 sec 26.7 KBytes 219 Kbits/sec
[ 5] 8.00-9.00 sec 249 KBytes 2.04 Mbits/sec
[ 5] 9.00-10.00 sec 0.00 Bytes 0.00 bits/sec
[ 5] 10.00-11.00 sec 764 KBytes 6.26 Mbits/sec
[ 5] 11.00-11.22 sec 26.8 KBytes 981 Kbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-11.22 sec 5.02 MBytes 3.75 Mbits/sec receiver
-----------------------------------------------------------
Server listening on 8097 (test #3)
-----------------------------------------------------------
Accepted connection from <work>, port 23632
[ 5] local 192.168.178.84 port 8097 connected to <redacted> port 28887
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 38.2 MBytes 321 Mbits/sec
[ 5] 1.00-2.00 sec 39.4 MBytes 331 Mbits/sec
[ 5] 2.00-3.00 sec 35.8 MBytes 300 Mbits/sec
[ 5] 3.00-4.00 sec 33.7 MBytes 283 Mbits/sec
[ 5] 4.00-5.00 sec 35.0 MBytes 294 Mbits/sec
[ 5] 5.00-6.00 sec 35.3 MBytes 296 Mbits/sec
[ 5] 6.00-7.00 sec 35.1 MBytes 294 Mbits/sec
[ 5] 7.00-8.00 sec 29.9 MBytes 251 Mbits/sec
[ 5] 8.00-9.00 sec 37.8 MBytes 317 Mbits/sec
[ 5] 9.00-10.00 sec 31.2 MBytes 262 Mbits/sec
[ 5] 10.00-10.01 sec 222 KBytes 225 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.01 sec 352 MBytes 295 Mbits/sec receiver
RE: Remote connection extremely slow - flo f - 2024-09-02
I thought I'll add what I found out in case someone else has a similar problem. It seems that the mobile network provider is artificially limiting the data rate depending on the destination. I set up a VPN to my home network and it had the same low data rate as without VPN which seems to indicate that it's not based on the type of traffic. Then I tried a a VPN of a commercial VPN provider which meant that for my mobile network provider the destination was one of the commercial VPN servers, and from there the traffic was sent to my home network. This resulted in a data rate much more like the speedtest I'd done. So with home VPN or without any VPN it was around 1-4 Mbps, while with commercial VPN it was over 30 Mbps.