how to factory reset factory HP Laserjet Pro 200 color MFP M276 nw

[natha1ie]

My printer worked fine for years and a few times I registered to new networks after some moves. Now a while back my internet provider changed the modem for a newer one. When I trid to get on the network with this printer I received the error message "invalid WPA passphrase" I tried everything I could think of to solve it. Earlier today I phoned the provider and they tried some things incl. taking the security of the network for a bit but it still would not connect. The only thing what has changed is now when I try to access the network and I choose our network it does no longer ask for a password and now it tells me it can't access the network (all other laptops, phones etc have no problem accessing the network). I have already done a reset through setup/service/restore default but that did not do it for me either. So hopefully it might help to do a factory reset. Can you please email me the steps to follow?

ps on diagnostics summary the troubleshooting does tell me the WPA authentication method on the printer has been changed from the default setting (maybe this happened in me trying to find the solution)  Below it states the HP printer settings do not match your wireless router settings.

Hope you can help!

[east2100]

Perform a NVRAM to see if it helps.

https://www.youtube.com/watch?v=UcNm9qyVdHc

https://www.youtube.com/watch?v=ICHIxpgf02E

[natha1ie]

Thank you for your help. I was indeed able to do the factory reset as I asked for. Unfortunately this did not resolve the problem. It seems the change of modem (done by provider) did something else to mess up the printer connection. I will continue to use the printer through my phone until I cancel my service with them to another provider. Hopefully that will solve the problem once and for all!