---
title: Other runtime issues
description: Possible runtime issues and their solutions related to unexpected certificate expiration and CrossModule and Network error messages.
component: pingfederate
version: 13.1
page_id: pingfederate:administrators_reference_guide:pf_other_runtime_issues
canonical_url: https://docs.pingidentity.com/pingfederate/13.1/administrators_reference_guide/pf_other_runtime_issues.html
llms_txt: https://docs.pingidentity.com/pingfederate/llms.txt
docs_for_agents: https://developer.pingidentity.com/build-with-ai/docs-for-agents.md
revdate: July 5, 2022
---

# Other runtime issues

Possible runtime issues and their solutions related to unexpected certificate expiration and `CrossModule` and `Network` error messages.

**Runtime issues and solutions**

| Problem                                                                                                                          | Solution                                                                                                                                                                                                                                                                                                  |
| -------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Certificates unexpectedly expire.                                                                                                | Verify that the server clocks are synchronized on both sides of the federation. You can configure PingFederate to notify administrators in advance of impending certificate expiration. For more information, see [Runtime notifications](help_notificationoptionstasklet_notificationoptionsstate.html). |
| Receive `CrossModule` or `Network` error messages when PingFederate is deployed with a supported hardware security module (HSM). | Verify network connections to the HSMs are active and running. Also ensure the HSMs have not been unintentionally shut down.                                                                                                                                                                              |