Cannot ping or print from one Win 10 workstation

7 PCs in an office here all running Windows 10

Network = workgroup

New router installed with IP address of 192.168.1.254

Canon photocopier / printer with IP address of 192.168.1.50

All PCs can print perfectly  bar 1 PC which cannot. When initially set up - worked great for 1 week.

When you ping printer (ping 192.168.1.50)  it responds " response from 192.168.1.254 destination unreachable"

What could the problem be?
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furunoAsked:
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JohnConnect With a Mentor Business Consultant (Owner)Commented:
On this problem computer, run TCP/IP Reset, DNS Fluah

Open cmd.exe with Run as Administrator
Then  netsh int ip reset c:\resetlog.txt
Also, ipconfig /flushdns followed by net stop dnscache followed by net start dnscache
Then restart the computer
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Joshua HopkinsPresidentCommented:
Check the cable/wifi connection.  What is the ip address of that machine?  Can it ping the gateway 192.168.1.254?
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furunoAuthor Commented:
yes it can ping the gateway 192.168.1.254
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Joshua HopkinsPresidentCommented:
Are all the ip address static or DHCP?  Can it ping other computers on the network?
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furunoAuthor Commented:
All are DHCP. It can ping other computers on network.
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Joshua HopkinsConnect With a Mentor PresidentCommented:
You can try to reset the adapter as John stated and if that does not work then you can try deleting the network interface from the device manager and rebooting.  It will repair anything that might be causing a hangup with drivers or address-mapping.
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furunoAuthor Commented:
ok thanks guys I will try these solutions when on-site again and will report back
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furunoAuthor Commented:
solved!

The reason it could ping is because the printer had changed IP address.

when users were asked if the printer was working. They all reported "yes". They were infact using a 2nd printer - a printer they were not meant to be using!

Two lessons here. Printers must be statically assigned in the router and the IT admin should never ever trust end-user reports. Observe them instead and always test the problem for yourself (even if it does mean asking a user to relinquish their seat for 15mins in a busy work environment).  

Printer's IP address was statically assigned and port number changed in client devices. All works perfect now.

Thanks for the great advice dispenced  by all the JH's!
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JohnBusiness Consultant (Owner)Commented:
Author acknowledged that our solutions helped here.
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