https://community.extremenetworks.com/t5/extremewireless-identifi/c5215-wireless-controller-upgrade/m-p/55631#M6536 Hi,<BR /><BR />we currently have two C5215 Wireless Controllers on <SPAN>Software: 10.41.13.0008.<BR /><BR />Looking to update to the latest version which is 10.51.17.0006 (already downloaded)<BR /><BR />Can I got direct to the latest software version or should I be upgrading in incremental steps.<BR /><BR />In particular we are having issues with AP3915i-ROW AP's, dropping off the system, and needing regular reboots.<BR /><BR />And are there&nbsp;any pitfalls to look out for whilst doing the upgrade.<BR /><BR />many Thanks.</SPAN> Wed, 16 Feb 2022 13:23:00 GMT EdwinM1 2022-02-16T13:23:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/c5215-wireless-controller-upgrade/m-p/55631#M6536 Hi,<BR /><BR />we currently have two C5215 Wireless Controllers on <SPAN>Software: 10.41.13.0008.<BR /><BR />Looking to update to the latest version which is 10.51.17.0006 (already downloaded)<BR /><BR />Can I got direct to the latest software version or should I be upgrading in incremental steps.<BR /><BR />In particular we are having issues with AP3915i-ROW AP's, dropping off the system, and needing regular reboots.<BR /><BR />And are there&nbsp;any pitfalls to look out for whilst doing the upgrade.<BR /><BR />many Thanks.</SPAN> Wed, 16 Feb 2022 13:23:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/c5215-wireless-controller-upgrade/m-p/55631#M6536 EdwinM1 2022-02-16T13:23:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/c5215-wireless-controller-upgrade/m-p/55632#M6537 We run 3825 3865 3912 3915 3935 on a pair of C5210 software 10.51.21.0002 without issues. Though, it was upgraded to 10.51 years ago.<BR /><BR />Did you look at the release notes? It says that <SPAN class="markedContent" id="page3R_mcid130"><SPAN style="left: 101.8px; top: 670.073px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(0.898949);" role="presentation" dir="ltr">C5215 supports </SPAN></SPAN>10.51.21.0002 <BR /><BR />https://documentation.extremenetworks.com/<BR />https://documentation.extremenetworks.com/release_notes/ExtremeWireless/9036078-20_ExtremeWireless_v10.51.21.0002_RelNotes.pdf<BR /><BR />Jan Thu, 17 Feb 2022 11:17:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/c5215-wireless-controller-upgrade/m-p/55632#M6537 Jan_Reister 2022-02-17T11:17:00Z