My HP Laser Jet Pro MFP M125nw no longer connects to the router.

[Ganne_49]

My printer no longer recognizes the router. I have tried all the solutions recommended in these forums. I got a new router, but renamed it to match the old one and same password. This printer will not reset, the blue light keeps blinking. I've tried every option on the printer screen. I deleted it from my computer and tried to add it, but nothing shows up. So I know it is not attached to the Internet. 

[Valsimot]

The most often it happens that new routers have 5G wi-fi, but older printer models support only 2,4G wireless and can't connect to new 5G wi-fi. So first step would be checking if the new router is working on 5G or 2,4G wi-fi.