Project Home
Project Home
Wiki
Wiki
Discussion Forums
Discussions
Project Information
Project Info
BroadcastCommunity.qnx.com will be offline from May 31 6:00pm until June 2 12:00AM for upcoming system upgrades. For more information please go to https://community.qnx.com/sf/discussion/do/listPosts/projects.bazaar/discussion.bazaar.topc28418
Forum Topic - TCP No ACK being sent: (2 Items)
   
TCP No ACK being sent  
Hello.

I have 6.5.0SP1 installed on my system.
I have the io-pkt-v4-hc loaded 3 times with the appropriate prefix=/alt[x] statement.

One of the places that io-pkt-v4-hc lives is on the WIFI network.

It all works, gets IP Addresses etc.  But I'm seeing some performance issues and I'm trying to debug and I need some 
pointers on how to debug this from QNX land.


When I run wireshark on my WIFI router, I've noticed that when my app has issues that wireshark shows that my device had
 to retransmit a TCP ACK.  

I do not have any packet filtering of any sort.  

Any ideas on how to debug why these packets aren't being sent out?

Thanks in advance.
Re: TCP No ACK being sent  
It's fixed.  The issue was that the software was telling the WIFI chip to scan while it was trying to send tcp/ip comms 
out.