Can't print (or ping)

[quest94]

Hi All,
Sounds like a common problem, but not so in my case, but here it goes.

1.  Configuration:  Epson WF-3640 plugged into router (previously wifi connected).

2.  Acer laptop, (upgraded to WIN-10) long time working with this printer now can't talk to the printer via wifi (only via USB cable).  Because other devices can still use the printer via the network, I know it must be a laptop problem.

3.  Additional info:  Acer-Lap doesn't get a response by pinging the printer, other devices do.  I changed the printer IP and the Acer still can't ping the new ip.  I turned off Windows firewall with no change.

Someone thought I should try to ARP the printer, but I haven't figured that out yet.  Suggestions appreciated.

Thanks

[Geek-9pm]

No, it won't work and you won't know why.
https://en.wikipedia.org/wiki/Address_Resolution_Protocol
Your laptop Wi-Fi device is failing.
To verify this, disable the on-board device and try a USB  device. You can get a cheap USB WI-Fi adapter almost anywhere. Try Walmart.
Cheap and Good WI-Fi stick from Walmart
Photo:

You should have one of these in your tool kit. 

EDIT: There is a another reason for the failure. A security update may have made the printer unreachable by the updated on-board device.  I will let somebody else try to help you resolve this. Otherwise, use a cheap adapter that doesn't care.

[quest94]

Problem resolved.

Restatement of problem.  Only 1 device of several unable to print to, or ping a long existing network printer.

Geek-9pm's suggestion to use a different wifi connection was a good troubleshooting suggestion.  (Goal is to break to chain somewhere to "half-step" the problem.)  I didn't think the internal wifi was bad because internet browsing was 100%.  Only unable to print.

1.  I tried a cable network connection.  (didn't work, turned into a long ordeal of unrelated problem).
2.  Tried to uninstall printer software. (not in program list).  Planned to re-install printer software.
3.  Remembered printer has had a static IP address for many years.  I changed it back to DHCP.
4.  Deleted and reinstalled printer.  JOY - after several weeks, I am printing again.

Thanks for reading.

r/Todd

[Geek-9pm]

Glad you got it. As you said:
..break to chain somewhere...
...is a proven method.