logo

Live Production Software Forums


Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Options
Go to last post Go to first unread
anson  
#1 Posted : Tuesday, January 14, 2020 8:55:35 PM(UTC)
anson

Rank: Member

Groups: Registered
Joined: 5/17/2018(UTC)
Posts: 13

Hi,

I have 2 PCs running vMix, One output NDI video, another one received it. They are both connected to the same cisco 3750E switch. The problem is in the receiving end, source dropped value keeps increased and the NDI video is a bit lagged. Both PC's CPU, memory and network usage are low. Do you have any idea where should I look for to find the root cause? what is the minimum requirement for NDI?

Thanks
anson  
#2 Posted : Wednesday, January 15, 2020 6:10:38 PM(UTC)
anson

Rank: Member

Groups: Registered
Joined: 5/17/2018(UTC)
Posts: 13

my network guy confirm that there is no packet drop in the switch. The PC config is : CPU i7-7700, 16GB ram, windows 10 64-bit, NVIDIA geForce GTX 1060 3GB. Still can't find out what went wrong.
doggy  
#3 Posted : Wednesday, January 15, 2020 6:37:22 PM(UTC)
doggy

Rank: Advanced Member

Groups: Registered
Joined: 12/27/2012(UTC)
Posts: 5,057
Belgium
Location: Belgium

Thanks: 283 times
Was thanked: 916 time(s) in 755 post(s)
any file transfers happening at times by any chance ?
admin  
#4 Posted : Wednesday, January 15, 2020 8:43:48 PM(UTC)
admin

Rank: Administration

Groups: Administrators
Joined: 1/13/2010(UTC)
Posts: 5,137
Man
Location: Gold Coast, Australia

Was thanked: 4135 time(s) in 1487 post(s)
Any switch is unlikely to drop packets. At first glance it sounds like one or both of the ends are only connected at 100mbit, due to cabling or connection issues.
This is actually surprisingly common so it is worth double checking even if you are sure both are gigabit.

The easiest way is to run PowerShell in Windows and run this command:

Get-NetAdapter | where Status -eq "Up" | select InterfaceDescription, LinkSpeed
anson  
#5 Posted : Wednesday, January 15, 2020 8:49:38 PM(UTC)
anson

Rank: Member

Groups: Registered
Joined: 5/17/2018(UTC)
Posts: 13

Originally Posted by: doggy Go to Quoted Post
any file transfers happening at times by any chance ?


No, that switch is dedicated for NDI.
anson  
#6 Posted : Wednesday, January 15, 2020 8:53:18 PM(UTC)
anson

Rank: Member

Groups: Registered
Joined: 5/17/2018(UTC)
Posts: 13

Originally Posted by: admin Go to Quoted Post
Any switch is unlikely to drop packets. At first glance it sounds like one or both of the ends are only connected at 100mbit, due to cabling or connection issues.
This is actually surprisingly common so it is worth double checking even if you are sure both are gigabit.

The easiest way is to run PowerShell in Windows and run this command:

Get-NetAdapter | where Status -eq "Up" | select InterfaceDescription, LinkSpeed


Both ends are 1Gb connection.

I have reviewed NewTek website for the requirement of NDI. Those PCs fulfill all requirements. Still wondering what goes wrong.
admin  
#7 Posted : Wednesday, January 15, 2020 10:34:39 PM(UTC)
admin

Rank: Administration

Groups: Administrators
Joined: 1/13/2010(UTC)
Posts: 5,137
Man
Location: Gold Coast, Australia

Was thanked: 4135 time(s) in 1487 post(s)
Did you run the powershell to double check? While the cable, network cards and switches
can appear to be gigabit, sometimes issues will cause them to connect at 100mbps, so you will need to double check to be sure.
anson  
#8 Posted : Thursday, January 16, 2020 2:47:31 AM(UTC)
anson

Rank: Member

Groups: Registered
Joined: 5/17/2018(UTC)
Posts: 13

Originally Posted by: admin Go to Quoted Post
Did you run the powershell to double check? While the cable, network cards and switches
can appear to be gigabit, sometimes issues will cause them to connect at 100mbps, so you will need to double check to be sure.


Below is output of the both ends

Get-NetAdapter | where Status -eq "Up" | select InterfaceDescription, LinkSpeed

InterfaceDescription LinkSpeed
-------------------- ---------
Intel(R) Ethernet Connection (5) I219-LM 1 Gbps


Get-NetAdapter | where Status -eq "Up" | select InterfaceDescription, LinkSpeed

InterfaceDescription LinkSpeed
-------------------- ---------
Broadcom NetXtreme Gigabit Ethernet 1 Gbps

I have updated vMix to version 23. But still no luck.
admin  
#9 Posted : Thursday, January 16, 2020 4:54:21 AM(UTC)
admin

Rank: Administration

Groups: Administrators
Joined: 1/13/2010(UTC)
Posts: 5,137
Man
Location: Gold Coast, Australia

Was thanked: 4135 time(s) in 1487 post(s)
I would suggest dropping us an email and send us a support report in vMix while the issue occurs:
https://www.vmix.com/contact-us.aspx
Users browsing this topic
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.