The SIP invite coming from the CUCM and directed to the QME is rejected by the operating system; problems using network interface E1000/E1000e

Applies to

All Windows Server OS

Description

Symptoms:

QueueManager  > QME is running but is not managing any incoming calls.
The SIP invite coming from the CUCM and directed to the QME is rejected by the operating system.
In a wireshark trace you can see that the TCP/IP stack of the operating system is sending back to CUCM an ICMP message "port unreachable".
If the "ping option" is enabled in CUCM Trunk configuration you can see it "Not Service"
Event viewer:     > You can see some messages with event id “27” on "e1iexpress" errors
 

StoneFax  > Fatal Error in Incoming/Outgoing
Event viewer:     > You can see some messages with event id “27” on "e1iexpress" errors
 

Cause

Issue with E1000E: Link here

Network adapters: Link here

Solution

Change the network interface card from type E1000e/E1000 to VMXNET3