Jan 1 00:01:05.633: %DTLS_TRACE_MSG-3-WLC_DTLS_ERR: Chassis 1 R0/0: wncd: DTLS Error, session:x.x.x.x MAC: Certificate validation failed The certificate (SN: 0159BC17) has expired. Jan 1 00:01:05.630: %PKI-3-CERTIFICATE_INVALID_EXPIRED: Certificate chain validation has failed. Syslog messages that would appear when a problematic AP joins 9800 WLCs: Validity period ended on 14:39:18 UTC Peer certificate verification failed 001AĬisco IOS AP fails to join a C9800 WLC, as seen on C9800: *Aug 1 05:16:27.127: %PKI-3-CERTIFICATE_INVALID_EXPIRED: Certificate chain validation has failed. C=US/ST=California/L=San Jose/O=Cisco IOS AP fails to join an AireOS WLC whose MIC is expired, as seen on a Cisco IOS AP: Cert Verification FAILED with error 10 (certificate has expired) at 0 depth. *Aug 1 05:16:27.127: %CAPWAP-3-ERRORLOG: Certificate verification failed!ĪP-COS fails to join an AireOS WLC whose MIC is expired, as seen on AP-COS: On 14:39:18 UTC Peer certificate verification failed 001A *Aug 1 05:16:27.127: %PKI-3-CERTIFICATE_INVALID_EXPIRED: Certificate chain Jul 10 16:13:52.443 spam_lrad.c:6164 LWAPP-3-PAYLOAD_ERR: Join request does not contain valid certificate in certificate payload - AP 00:11:22:33:44:55Īn example of a WLC's MIC expiration case is shown here, as seen on a Cisco IOS ® AP: At the time of the join failure, the AireOS WLC msglog might show messages similar to this example: The wireless APs fail to connect to the AireOS WLCs. Here are some examples of the types of error message you might see when you experience this issue. Starting in 2019, all 9800 WLCs and 9100 APs were manufactured with SHA-2 ("SUDI99") certificates that expire in 2099. Starting in 2017, Cisco manufactured all wireless devices with additional SHA-2 MICs that expire in 2037 or later. Prior to July 18, 2005, Cisco APs were not manufactured with MICs.Īll Cisco wireless products that were manufactured after Jhave SHA-1 MICs that expire after 10 years. In order to help determine the potential future impact, a list of APs and WLCs and their release dates can be found in the Lightweight AP - Fail to create CAPWAP/LWAPP connection due to certificate expiration Cisco Community article. The likelihood that this issue will be encountered is 100% for wireless APs and WLCs that are more than 10 years old and were manufactured prior to 2017. When you configure mobility tunnels between controllers, they fail to establish a connection. When an AP attempts to establish a new connection, the AP fails to join. WLC-to-Mobility Services Engine (MSE) or Connected Mobile Experience (CMX) Network Mobility Services Protocol (NMSP) connections.WLC-to-WLC encrypted mobility connections (CAPWAP).AP-to-WLC Control and Provisioning of Wireless Access Points (CAPWAP) connections.IOS AP with SHA2 MIC certificate fails to join WLC with config ap cert-expiry-ignore mic enableĭue to the expiration of Manufacturer Installed Certificates (MICs) in Wireless LAN Controllers (WLCs) and/or Access Points (APs), connections of these types might fail to establish: LAP/WLC MIC lifetime expiration causes DTLS failureĬSCuq19142 workaround doesn't work on very old 4400s with Airespace MICĪP-COS: AP not joining after enabling MIC certificate expiry check All AP-COS APs are affected, all versions.
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