Re: [lwip-users] Wireless Errors

[Kieran Mansley]

On 18 Sep 2010, at 15:33, Zahir Lalani wrote:

> Hi All
>  
> Wondering if you can point me in the right direction.
>  
> I have written a custom protocol to send data between a desktop app and our 
> embedded system which uses lwIP. In recent weeks I have played around with 
> the opts settings based on what I have read-up and have got the throughput 
> working much better. When I am on a wired network – I don’t see any errors 
> and the system works great.
>  
> Using the same code with my laptop on a wireless connection, it is expectedly 
> slower, but I also get more errors where the desktop app never gets an ack 
> (from the server application) and has to retry. Sometimes the errors cause 
> the server end to completely lock up, and pings don’t even respond. I know 
> it’s a really open question, but I am no expert on tcp and need to know where 
> to look for issues.

A packet capture would be a good place to start so we can see exactly what's 
happening.

Kieran