Wireless printer error with airport extreme
I have an HP8620 printer connected to my wireless network (using an airport extreme). It works fine until I connect an airport express to the network as a range extender. I get an error message on my printer "multiple SSID's" and it appears that the printer gets confused with which device to connect to. I use a static IP address.
Is there a solution to this ? Or do I need to connect the printer to the airport extreme using an ethernet cable ? If I do thIs, will the printer still be accessible as a wireless printer from the multiple laptops that need to print ?
It has taken me a very frustrating 3 hours to isolate the cause of the problem and I dont have enough spare hair to pull out !
OS X Yosemite (10.10.5)