Skip to content
Skip to search
Skip to footer
Cisco.com Worldwide
Products and Services
Solutions
Support
Learn
Explore Cisco
How to Buy
Partners Home
Partner Program
Support
Tools
Find a Cisco Partner
Meet our Partners
Become a Cisco Partner
Support
Product Support
Routers
Cisco Network Convergence System 5500 Series
Field Notices
Some links below may open a new browser window to display the document you selected.
View Documents by Topic
Choose a Topic
Cisco Network Convergence System 5516
Cisco Network Convergence System 5508
Cisco Network Convergence System 5504
Cisco Network Convergence System 5502
Cisco Network Convergence System 5502-SE
Cisco Network Convergence System 5501
Cisco Network Convergence System 5501-SE
Cisco Network Convergence System 55A2-MOD-HD-S
Cisco Network Convergence System 55A2-MOD-S
Cisco Network Convergence System 55A2-MOD-SE-S
Cisco Network Convergence System 55A1-48Q6H
Cisco Network Convergence System 55A1-36H
Cisco Network Convergence System 55A1-36H-SE
Cisco Network Convergence System 55A1-24H
Cisco Network Convergence System 55A1-24Q6H-S
Cisco Network Convergence System 55A1-24Q6H-SS
Cisco Network Convergence System 5516
Field Notice: FN - 72571 - NC55-PWR-3KW-AC Displays Error Message during Install Upgrade or OIR Process - Software Upgrade Recommended
06/Jun/2023
Field Notice: FN - 72246 - NCS5500: Some Units Might Become Unresponsive Due to an SSD Firmware Limitation - BIOS/Firmware Upgrade Recommended
06/May/2022
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 72086 - NCS 5500 - Certain Line Card Versions Are Only Supported With a Minimum Software Release or the Required SMU - Software Upgrade Recommended
11/Aug/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Cisco Network Convergence System 5508
Field Notice: FN - 72571 - NC55-PWR-3KW-AC Displays Error Message during Install Upgrade or OIR Process - Software Upgrade Recommended
06/Jun/2023
Field Notice: FN - 72370 - Some NCS-57C3-MOD-SYS Routers Might Not Read Power Supply Details of NC57-1600W-DCFW - Software Upgrade Recommended
21/Sep/2022
Field Notice: FN - 72246 - NCS5500: Some Units Might Become Unresponsive Due to an SSD Firmware Limitation - BIOS/Firmware Upgrade Recommended
06/May/2022
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 72086 - NCS 5500 - Certain Line Card Versions Are Only Supported With a Minimum Software Release or the Required SMU - Software Upgrade Recommended
11/Aug/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Field Notice: FN - 64231 - NCS5500 Line Cards Might Fail After 18 Months or Longer Due to Clock Signal Component Failure - Replace on Failure
17/Oct/2019
Cisco Network Convergence System 5504
Field Notice: FN - 72571 - NC55-PWR-3KW-AC Displays Error Message during Install Upgrade or OIR Process - Software Upgrade Recommended
06/Jun/2023
Field Notice: FN - 72246 - NCS5500: Some Units Might Become Unresponsive Due to an SSD Firmware Limitation - BIOS/Firmware Upgrade Recommended
06/May/2022
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 72086 - NCS 5500 - Certain Line Card Versions Are Only Supported With a Minimum Software Release or the Required SMU - Software Upgrade Recommended
11/Aug/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Cisco Network Convergence System 5502
Field Notice: FN - 72571 - NC55-PWR-3KW-AC Displays Error Message during Install Upgrade or OIR Process - Software Upgrade Recommended
06/Jun/2023
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Cisco Network Convergence System 5502-SE
Field Notice: FN - 72571 - NC55-PWR-3KW-AC Displays Error Message during Install Upgrade or OIR Process - Software Upgrade Recommended
06/Jun/2023
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Cisco Network Convergence System 5501
Field Notice: FN - 72571 - NC55-PWR-3KW-AC Displays Error Message during Install Upgrade or OIR Process - Software Upgrade Recommended
06/Jun/2023
Field Notice: FN - 72370 - Some NCS-57C3-MOD-SYS Routers Might Not Read Power Supply Details of NC57-1600W-DCFW - Software Upgrade Recommended
21/Sep/2022
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Cisco Network Convergence System 5501-SE
Field Notice: FN - 72571 - NC55-PWR-3KW-AC Displays Error Message during Install Upgrade or OIR Process - Software Upgrade Recommended
06/Jun/2023
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Cisco Network Convergence System 55A2-MOD-HD-S
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Cisco Network Convergence System 55A2-MOD-S
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Cisco Network Convergence System 55A2-MOD-SE-S
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Cisco Network Convergence System 55A1-48Q6H
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Cisco Network Convergence System 55A1-36H
Field Notice: FN74058 - Some NCS-55A1 Units May Be Affected during FPD Upgrade - Replace on Failure
16/Feb/2024
Field Notice: FN - 72246 - NCS5500: Some Units Might Become Unresponsive Due to an SSD Firmware Limitation - BIOS/Firmware Upgrade Recommended
06/May/2022
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Cisco Network Convergence System 55A1-36H-SE
Field Notice: FN74058 - Some NCS-55A1 Units May Be Affected during FPD Upgrade - Replace on Failure
16/Feb/2024
Field Notice: FN - 72246 - NCS5500: Some Units Might Become Unresponsive Due to an SSD Firmware Limitation - BIOS/Firmware Upgrade Recommended
06/May/2022
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Field Notice: FN - 70458 - Certain NCS 5500 Products Are Not Supported With Software Releases Earlier Than Cisco IOS XR 6.5.2/6.6.1 or Without the Mandatory SMU - Software Upgrade Recommended
19/Dec/2019
Cisco Network Convergence System 55A1-24H
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Field Notice: FN - 72108 - NCS-5500 Will Fail with SSD Read-Only Filesystem after 3.2 Years of Operation - Power Cycle Required - BIOS/Firmware Upgrade Recommended
23/Dec/2021
Cisco Network Convergence System 55A1-24Q6H-S
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Cisco Network Convergence System 55A1-24Q6H-SS
Field Notice: FN - 72290 - Cisco IOS XR: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing and Smart Call Home Functionality - Workaround Provided
22/Mar/2022
Support Documentation
All Support Documentation for this Series
Security Notices
Security Advisories, Responses and Notices
Customers Also Viewed