.Net Application - Post Back

ASP.NET Application does not work while submitting post action in form components like clear button, fetch dropdown data based on dynamic selection.

This behavior of application is noticed only on Internet wherein traffic is routed through F5 iRule. But, works on Intranet

wherein traffic is routed directly to IIS without F5.

We are using IIS version 7.5 and Big-IP F5 LTM 10.4.4

Observations from “Internet” with F5 LTM:

o Internet Explorer - Not Working - Timeout & Request Aborted.

o Mozilla Firefox - Working - Request & Response Success.

o Google Chrome - Not Working - Timeout & Request Aborted.

Observations from “Intranet” without F5 LTM:

o Internet Explorer - Working - Request & Response Success.

o Mozilla Firefox - Working - Request & Response Success.

o Google Chrome - Working - Request & Response Success.

As per above cases, we are suspecting the cause of issue on below F5 iRule that aborts application response through Internet.

when HTTP_REQUEST {

set uri [string tolower [HTTP::uri]]

if {$uri contains "departmentwebsite" || $uri contains "requestservice"} {

pool Pool_Department

} elseif {$uri contains "iisservices"} {

pool Pool_IIS

} elseif {$uri contains ".ida" || $uri contains ".exe" || $uri contains ".dll"} {

discard

} else {

pool Pool_http

}

}