Question / Help Massive frame drops

G

Genevensis

New Member
I am trying to start streaming, but I systematically get a LOT of dropped frames. My PC and my internet are pretty good, so I don't understand why.

I have tried everything in this post:

https://obsproject.com/forum/threads/dropped-frames-disconnecting-lag-read-this-first.8870/

except for hardware replacement, but I was hoping I could find another solution before I resort to this.

Here is a speed test for my internet, almost 19Mbps:

http://testmy.net/db/Nj8tbYOr9

Here is the twitch server speed test:

http://i.imgur.com/YCgJHCZ.png

I copied one of my latest log files at the end of this post.

I tried with hardware or software encoding, it makes no difference.

I tried lowering the bitrate to 800, it makes a very small difference.

When I upload files to youtube, I get the advertised upload rate. I only have problems with streaming.

I tried streaming to hitbox instead of twitch, it makes a big difference, just about halving the number of dropped frames, however the stream is still unwatchable.

Any help would be appreciated. Thanks in advance!
 

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B

Beardedbob

Member
Hi,

The logs showing bandwidth issues on multiple bitrates, this is one

12:15:49.075: Output 'simple_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 661 (12.2%)

Can you confirm your upload? the twitch bandwidth is showing decent quality and your not over wifi, this leave three possibilities

1. You don't have enough upload for the bitrates.
2. You ISP has issues currently given you have the issues to multiple ingress servers.
3. Network ether a NIC issues like the driver or Switch / router / cable
 
G

Genevensis

New Member
Hi, thanks for taking the time to help.

I just tested my upload:
I uploaded a 545MB file to youtube in 214 seconds, which makes 2.54MB/s which is 20.37Mbps, so it looks good.
I was under the impression that this speed is enough for 2000 bitrate.

I don't understand what a NIC issue is, but if you tell me I can look.
 
B

Beardedbob

Member
Hi,

Np, the upload needed for 2000 bitrate is a min of 2.6mb so if you have 20mb up then you have plenty of headroom.

NIC = Network Interface Controller (RJ45 network port on the pc), check the drivers you have installed aren't causing any network packet drops.
 
Excelsior

Excelsior

New Member
I think the very first question to be asked now should be:

What is your ISP?

I do know that Spectrum is having major issues with their services since the merger.
 
G

Genevensis

New Member
My ISP is Bluewin (from Swisscom). It's in switzerland.
I checked and there doesn't seem to be any packet loss between my pc and my router.
I tried streaming again just now and I'm up to 27% frames dropped :(
 
B

Beardedbob

Member
Try further say to google in the same region as the ingress you are looking to steam to, this will give a basic test for the net side.

I suspect its the ISP, they wont tell you and you wont notice on general surfing only for streaming as it requires a constant connection hence twitch needs CBR set.
 
B

Beardedbob

Member
depends, if you said you can ping your router / modem without any drops then your side is fine, its the net hop in the network or somewhere along there that's dropping packets. No OBS setting will fix this.
 
G

Genevensis

New Member
So, apparently it's a problem with OBS Studio.
I switched to OBS classic and the problem vanished. I can stream at 2500 bitrate from my wifi with 0 dropped frames on a 45 minute session.
 
Last edited:
Excelsior

Excelsior

New Member
grab a free trial copy of pingplotter and screenshot to yahoo.com or google.com for us so we can see jitter, etc.
 
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