I have an Epson ET-2850 printer. When I try to scan I get this error message: Failed to open a connection to the device (-21345). Please advise.

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Level 1

5 points

I have an Epson ET-2850 printer. When I try to scan I get this error message: Failed to open a connection to the device (-21345). Please advise.

I have an Epson ET-2850 printer connected to my iMac (Monterey) via WIFI. I updated the firmware on my printer this morning, then uninstalled and reinstalled my printer. I can print fine, but when I try to scan a document, I get this error message: Failed to open a connection to the device (-21345). Please advise how I can scan.

iMac 27″, macOS 12.5

Posted on Aug 31, 2022 7:02 AM

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Answer 1

Top-ranking reply

PRP_53

Level 10

92,275 points

Sep 1, 2022 4:09 AM in response to trloughlin

Have a Epson ET 2750 which was used in Big Sur and again in Monterey in the latest stable version of Monterey 12.5.1

You may need the Epson ET-2850 Scanner Driver and Epson Scan 2 Utility v6.4.99.

https://epson.ca/Support/Printers/All-In-Ones/ET-Series/Epson-ET-2850/s/SPT_C11CJ63202

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Answer 2

Andy_J_G

Level 1

23 points

Sep 1, 2022 4:03 AM in response to trloughlin

Hi, there are a couple of things that you can try.

Disable the firewall on the Mac and try scanning again - if it works, you will need to add the scan / print application to the firewall exclusions.
Disable IPv6 if you are not using it.
If you are trying to scan whilst connected to a VPN - close down the VPN tunnel and try.

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