FlexNet Publisher: Solution for error "Cannot connect to license server system. (-15,570:115 'Operation now in progress')"

Yes

Symptoms:

When the lmstat or lmdiag utility attempts to access the license server, the connection fails with the error message "Cannot connect to license server system. (-15,570:115 'Operation now in progress')".

Diagnosis:

When a user attempts to run the lmdiag or lmstat utility against the license server, the following error can occur:

Support@Revenear1:~$ ./lmutil lmstat -a -c @10.10.10.X
lmutil - Copyright (c) 1989-2019 Flexera. All Rights Reserved.
Flexible License Manager status on Fri 6/24/2022 18:15

Error getting status: Cannot connect to license server system. (-15,570:115 "Operation now in progress")

Support@Revenear1:~$ ./lmutil lmdiag -n -c @10.10.10.X
lmutil - Copyright (c) 1989-2019 Flexera. All Rights Reserved.
FlexNet diagnostics on Fri 6/24/2022 18:16

Can't fetch the requested Information!!
Kindly re-check the license file path and server details.

Solution:

The following solution works only if the Palo Alto firewall is involved in the network.

The Palo Alto firewall uses the application profile to allow TCP traffic. In the case described in this article, rules exist that enable connections to be established for specified applications without a value defined for tcp/ports (such as ssh, HTTP, and HTTPS). Because Ncat does not traffic any data until data is sent, the open connection with these applications will succeed. However, if a user attempts to send data (for example, an SMTP test) to an application not included in such rules, the connection fails.

To ensure that a connection with the FlexNet Publisher license server is allowed, users must create an application rule for flexnet-publisher.