OfficeJet 9120e says its on network but often is unavailable, requires frequent resets

[tk12345678]

My OfficeJet 9120e is constantly showing up as unavailable, offline, even though the printer shows good connectivity on the network. After turning printer off/on (sometimes two or three resets are needed) it will print for a while and then eventually drop off again. My network is Google Nest Pro, and I have found it stable and not had this issue with any other device. I wonder if the 6E capability of the Nest Pro is confusing things? Is this a static IP issue like printers used to have?

[BeemerBiker]

Flex systems (WiFi boosters or repeaters) must be allocated a fixed IP address otherwise the printer can get a different IP address depending on which repeater it connects to.  It could also get a different IP address every time it wakes up from sleeping

Google has a forum for help here and the can provide instructions for configuring a fixed or reserved IP address. 

Some resources are below

Reset and WiFi setup
https://www.youtube.com/watch?v=H9ryGwiH2bg

9120e factory reset

full feature software 9120
https://ftp.hp.com/pub/softlib/software13/printers/OJP9120/HPEasyStart-16.2.4-OJP9120_58_2_1857_Webp...

If you have any problem let me know as there are a few other options.