Lync MAPI Connectivity Into Exchange (UcMAPI.exe)

This appears to be a net new issue for some reason.

In our case, we are using the APM iRule to add persistence, and I have buried this iRule within a Universal Persistence Profile so we can enable persistence mirroring across our HA Pairs.

Now when we fire up a new client, an ADDITIONAL persistence record is created to Pool Member 127.20.2.254:10001 which I can only guess is some kind of internal proprietary system IP. After this, that particular record immediately goes idle and expires at our pre-determined interval.

Here's our persistence iRule (modified from the Deployment Guide since we use multiple Virtual Servers):

when ACCESS_ACL_ALLOWED {
    set sessionid [ACCESS::session data get "session.user.sessionid"]
    switch -glob -- [string tolower [HTTP::path]] {
        "/microsoft-server-activesync*" -
        "/owa*" -
        "/ews*" -
        "/ecp*" -
        "/oab*" -
        "/rpc/rpcproxy.dll*" {
            persist uie $sessionid 1800
            return
        }
        "/autodiscover*" {
            persist none
            return
        }
    }
}

when HTTP_RESPONSE {
    if { [string tolower [HTTP::header values "WWW-Authenticate"]] contains "negotiate"} {
        ONECONNECT::reuse disable
        ONECONNECT::detach disable
        NTLM::disable
    }
    if {[HTTP::header exists "Transfer-Encoding"]} {
        HTTP::payload rechunk
    }
}

Any ideas?

-Cory