When you upgrade the software of the HaLow Access Point, does it automatically distribute that upgrade to the Client HaLowLink1 devices? If not, does anyone know how to upgrade them?
No, the AP won’t upgrade Extenders on its network, I’m afraid.
You can go to their interface to initiate an upgrade by determining their IP from your dhcp server, or (if you’re using your HL1 as a DHCP server) you can probably go straight to their hostname (i.e. halowlink1-xxxx.lan). Then login as usual, and go to the Upgrade page.
Alternatively, you can reset them back into Router/AP mode (green) and connect to them independently to update (but they will require internet access over the WAN port!), then switch them back to Extender mode (aqua).
Thank you @james.haggerty That worked!