Trouble replaying Oracle NCA script (button press takes a long time and expires during replay)

Hi,

We are evaluating LoadRunner (11.52 Patch1) for performance testing here at Croatia osiguranje d.d. and are having trouble replaying button presses that take a long time in Oracle NCA.

After some time, we get "Error: Error: ifError expired (n)". Here is a detailed log excerpt:

Action.c(12): t=8344ms: 251-byte response headers for "http://server.crosig.group:7779/forms/lservlet;jsessionid=xxxxxx" (RelFrameId=1, Internal ID=19)
Action.c(12):     HTTP/1.1 200 OK\r\n
Action.c(12):     Date: Wed, 05 Feb 2014 08:22:01 GMT\r\n
Action.c(12):     Server: Oracle-Application-Server-10g/10.1.2.2.0 Oracle-HTTP-Server\r\n
Action.c(12):     Content-Length: 15\r\n
Action.c(12):     Cache-Control: private\r\n
Action.c(12):     Keep-Alive: timeout=15, max=82\r\n
Action.c(12):     Connection: Keep-Alive\r\n
Action.c(12):     Content-Type: text/plain\r\n
Action.c(12):     \r\n
Action.c(12): t=8344ms: 15-byte response body for "http://server.crosig.group:7779/forms/lservlet;jsessionid=xxxxxx" (RelFrameId=1, Internal ID=19)
Action.c(12):     ifError:11/3200
Action.c(12): Error: Error: ifError expired (5)

 If we set larger values for Oracle NCA Client Emulation Pragma Mode (e.g., Max retries or Retry interval) VuGen usually freezes during replay. Then we have to kill all HP processes (or restart the machine) in order to run the script again.

Any ideas how to overcome this?