Old ZD1100 on firmware 220.127.116.11
I have been asked to look at our churches ZD1100 as we are experiencing some intermittent connection problems and it seems that only one device (Apple Mac) can actually access the ZD1100 under the admin account. The firmware is currently 18.104.22.168 and it seems that the first thing I should do is at least update the firmware. There are 4 APs currently in use. Slightly concerned that the upgrade may cause problems and reading the forum it seems there is an upgrade path that needs to be followed to get to the latest firmware version.
Are there any pre-requisites that I need to do before attempting an upgrade. I have no idea whether the church has a premium support package (doubt it).
Also, maybe I just leave it all as is as the problems we are experiencing are not massive issues...maybe apart from not being able to access the ZD1100 from only the one laptop!!
Thanks in advance for any advice and assistance.