Have you read the ZD1100 9.10 Release Notes? https://support.ruckuswireless.com/documents/668-zoneflex-9-10-ga-release-notes
You can disconnect your ZD from APs during the ZD upgrade process, and at the end, APs will
download whatever version the ZD is running when ZD/APs are reconnected to the network.
You will need support entitlement to get to version 9.10.
Always save a backup at the starting ZD version when you do an upgrade, and add the version
digits to the filename to remind you, like ruckus_debug_v952015_081215_10_43.dbg
I'm posting ZD 220.127.116.11.59 (MR1) to Support this morning, so you may wish to go to this release.https://support.ruckuswireless.com/software/803-zd1100-9-10-1-0-59-mr-software-release