Why it's take a while to get a TCP Connection

[ats3788]

I Guys

I open VISA Interactive Control

and I see my USB Connection just in time,

but the TCP/IP Connection takes at least 5 min to be recognized.

What is the reason for this and can I force the auto detection?

I Develop an Application in Delphi

[Christian-P]

Hi,

Can you give us a few more details about your hardware setup please?

- which device are you using?

- is the device directly connected to your computer or part of a bigger network?

And do you only see this behavior in the VISA Interactive Control or also in your application?

Best regards

Christian

[ats3788]

Sorry

It's a direct TCPIP connection via a switch

192.168.1.200 - 255.255.255.0

If my Rigol DS1074Z is on and I start my PC

I don't have a delay, but if I power on My DS1074Z

it takes a while.

The USB Connection is just in time available.

In Pascal

viOpenDefaultRM(defrm);

Error := viFindRsrc(defrm, '?*?', list, nmatches, matches);  // Open the device
if Error <> VI_SUCCESS then begin
....

end;

[ats3788]

Anyway what I figured out.

If I first start the DS1074Z then the PC

all the other VISA32 function work well so far.

Sometimes I had VI_ERROR_TMO,

when I first started the PC.