Why HttpRequest Timeout does not work?

[riko]

Hello,

i have a strange issue with my app when i am uploading big amount (400KB, photo data from camera) of data with HttpUtils library to my https server.

I am doing the following in a service-module:

Dim hc As HttpClient
Dim req As HttpRequest
...
hc.InitializeAcceptAll("hc")
... prepare my PostBytes ...
req.InitializePost2(url, PostBytes)
req.Timeout = 10000
hc.Execute(req, 1)

But my ResponseSuccess and ResponseError Sub's are not called within the 10 seconds of the timeout.
It takes sometimes several minutes (you can easily go for a cup of coffee) to get the ResponseSuccess-Sub to be triggered, and also to get this request on my web-server. There are few times where it is sent immediately...

But in the meantime other requests from this app receives into my web-server without any time delay!

Any idea why this can happen or the timeout does not work?
Are there any restrictions in concurrent HttpClients working (i have 2 services and one for "on demand" requests. One service is "pinging" all 2 seconds to my server to keep the line, the other service is the photo uploader)?

Glad for any help with this?

Thanks Richard.

 

[riko]

here is my service code...

 

[Erel]

The timeout will only be fired if data is not being sent or received. If the upload is very slow then it will not fire.

 

[riko]

Ok, so far i have figured out what most likely caused the problem.
The device does frequently switching between Netmode (3G <-> H+)...

So i switched from auto-selecting the transponder of the mobil-net to fixed GSM.
After that i had no such problems (or only very very less) anymore...

richard.