scanner suddenly wont work?

[essie-vivi]

my scanner suddenly wont work but displays a message The printer could not find the server, contact your admin...

Also i now cannot print from my phone but i can wireless from my laptop (im not sure if the above is connected to each others issue)

The printer works and our wi fi is ok and nothing has changed so i cant work out what has gone wrong?

The header is: DNS/Gateway problem

Thank you

[Jay_G24]

Hi @essie-vivi,

I'd like to help!

To assist better-

1. What device are you using the printer with, a Windows computer, Mac, Android or an iPhone? 
2. Is the printer connected to a home or public network?
3. Are you trying to scan to a computer or scan to email?
4. I would like to know, is your router set to work on 2.4 GHz network or 5 GHz network band?

 Keep me posted. 

And, Welcome to the HP Support Community. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping

[essie-vivi]

The scanner wont scan to anything, just gives the error message as advised.

[Jay_G24]

Could you please help me with the below information-

1. What device are you using the printer with, a Windows computer, Mac, Android or an iPhone? 
2. Is the printer connected to a home or public network?
3. Are you trying to scan to a computer or scan to email?
4. I would like to know, is your router set to work on 2.4 GHz network or 5 GHz network band?

Let me know!

[essie-vivi]

trying to scan to email.

also now my phone won’t AirPrint you the printer so I don’t know if connected  to the scan issue.

please help!!

[TVLVLT]

Yes. happened with my scanner option though printer works all fine. Tried to check some FAQ and looks like 3700 series has some software update due to vulnerabilities detected. I tried to download but does not allow me to. Still trying with different options. One option is to re-install HP smart (I tried in my phone only as of now) and use camera scan vs printer scan option and share the document through the preferred option. Worked for me atleast with some alternate..