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Is your HP DeskJet 3830 series scanner not working? Here is the solution Click here to view the instructions!
Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan
We would like to share some of the most frequently asked questions about HP Solution Center not working : Adobe Flash Player Error and Unable to Scan.
HP Recommended
Officejet 6500 E710N
Microsoft Windows 10 (64-bit)

I keep getting an error message on my PC that "Scan to computer is no longer activated The network connection has been lost".  The printer is printing fine and scanning is fine as well.  How do I get rid of the error msg.  I don't even use this feature (I don't think)?, 

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

Not sure this will help but hope the information might help.

Configure your firewall to work with HP devices

A personal firewall, which is security software running on your computer, can block

network communication between your HP device and your computer.

If you are having problems such as:

  • Printer not found when installing HP software
  • Unable to print, print job stuck in queue or printer goes offline
  • Scan communication errors or scanner busy messages
  • Unable to see printer status on your computer

The firewall might be preventing your HP device from notifying computers on your network

where it can be found. If the HP software cannot find the HP device during installation

(and you know the HP device is on the network), or you have already successfully

installed HP software and experience problems, try the following:

  1. If you are using a computer running Windows, in the firewall configuration utility, look

for an option to trust computers on the local subnet (sometimes called the “scope“ or

“zone“). By trusting all computers on the local subnet, computers and devices in your

home or office can communicate with each other while still being protected from the

internet. This is the easiest approach to use.

  1. If you do not have the option to trust computers on the local subnet, add incoming

UDP port 427 to your firewall’s list of allowed ports.

NOTE: Not all firewalls require you to differentiate between incoming and

outgoing ports, but some do.

Configure your firewall to work with HP devices 119

Another common problem is that HP software is not set as a trusted software by your

firewall to access the network. This can happen if you answered “block“ to any firewall

dialog boxes that appeared when you installed the HP software.

If this occurs, and if you are using a computer running Windows, check that the following

programs are in your firewall’s list of trusted applications; add any that are missing.

  • hpqkygrp.exe, located in C:\program files\HP\digital imaging\bin
  • hpqscnvw.exe, located in C:\program files\HP\digital imaging\bin

- or -

hpiscnapp.exe, located in C:\program files\HP\digital imaging\bin

  • hpqste08.exe, located in C:\program files\HP\digital imaging\bin
  • hpqtra08.exe, located in C:\program files\HP\digital imaging\bin
  • hpqthb08.exe, located in C:\program files\HP\digital imaging\bin

NOTE: Refer to your firewall documentation on how to configure the firewall port

settings and how to add HP files to the “trusted“ list.

Some firewalls continue to cause interference even after you disable them. If you

continue to have problems after configuring the firewall as described above and if you

are using a computer running Windows, you might need to uninstall the firewall

software in order to use the HP device over the network.

Advanced firewall information

The following ports are also used by your HP device and might need to be opened on

your firewall configuration. Incoming ports (UDP) are destination ports on the computer

while outgoing ports (TCP) are destination ports on the HP device.

  • Incoming (UDP) ports: 137, 138, 161, 427
  • Outgoing (TCP) ports: 137, 139, 427, 9100, 9220, 9500

The ports are used for the following functions:

Printing

  • UDP ports: 427, 137, 161
  • TCP port: 9100

Photo card upload

  • UDP ports: 137, 138, 427
  • TCP port: 139

Scanning

  • UDP port: 427
  • TCP ports: 9220, 9500

HP device status

UDP port: 161

Chapter 7

120 Solve a problem

Faxing

  • UDP port: 427
  • TCP port: 9220

HP device installation

UDP port: 427

I am A certified Copier Technician.
It is so nice to give some help where possible and the forum is a great idea Thank You.Sometimes a picture speaks louder than words to find a solution.Should you find my help use full just give some credit for my effort please.
.Thank You.Copier-Pro
If you found this post helpful, you can let others know and also show your appreciation by clicking the “Accept as Solution”button, “Thumbs up" button!

#################################################################
I'M NOT AN HP EMPLOYEE AND DO ANSWER THESE QUESTION ON MY OWN BEHALF.
#################################################################

View solution in original post

3 REPLIES 3
HP Recommended

Not sure this will help but hope the information might help.

Configure your firewall to work with HP devices

A personal firewall, which is security software running on your computer, can block

network communication between your HP device and your computer.

If you are having problems such as:

  • Printer not found when installing HP software
  • Unable to print, print job stuck in queue or printer goes offline
  • Scan communication errors or scanner busy messages
  • Unable to see printer status on your computer

The firewall might be preventing your HP device from notifying computers on your network

where it can be found. If the HP software cannot find the HP device during installation

(and you know the HP device is on the network), or you have already successfully

installed HP software and experience problems, try the following:

  1. If you are using a computer running Windows, in the firewall configuration utility, look

for an option to trust computers on the local subnet (sometimes called the “scope“ or

“zone“). By trusting all computers on the local subnet, computers and devices in your

home or office can communicate with each other while still being protected from the

internet. This is the easiest approach to use.

  1. If you do not have the option to trust computers on the local subnet, add incoming

UDP port 427 to your firewall’s list of allowed ports.

NOTE: Not all firewalls require you to differentiate between incoming and

outgoing ports, but some do.

Configure your firewall to work with HP devices 119

Another common problem is that HP software is not set as a trusted software by your

firewall to access the network. This can happen if you answered “block“ to any firewall

dialog boxes that appeared when you installed the HP software.

If this occurs, and if you are using a computer running Windows, check that the following

programs are in your firewall’s list of trusted applications; add any that are missing.

  • hpqkygrp.exe, located in C:\program files\HP\digital imaging\bin
  • hpqscnvw.exe, located in C:\program files\HP\digital imaging\bin

- or -

hpiscnapp.exe, located in C:\program files\HP\digital imaging\bin

  • hpqste08.exe, located in C:\program files\HP\digital imaging\bin
  • hpqtra08.exe, located in C:\program files\HP\digital imaging\bin
  • hpqthb08.exe, located in C:\program files\HP\digital imaging\bin

NOTE: Refer to your firewall documentation on how to configure the firewall port

settings and how to add HP files to the “trusted“ list.

Some firewalls continue to cause interference even after you disable them. If you

continue to have problems after configuring the firewall as described above and if you

are using a computer running Windows, you might need to uninstall the firewall

software in order to use the HP device over the network.

Advanced firewall information

The following ports are also used by your HP device and might need to be opened on

your firewall configuration. Incoming ports (UDP) are destination ports on the computer

while outgoing ports (TCP) are destination ports on the HP device.

  • Incoming (UDP) ports: 137, 138, 161, 427
  • Outgoing (TCP) ports: 137, 139, 427, 9100, 9220, 9500

The ports are used for the following functions:

Printing

  • UDP ports: 427, 137, 161
  • TCP port: 9100

Photo card upload

  • UDP ports: 137, 138, 427
  • TCP port: 139

Scanning

  • UDP port: 427
  • TCP ports: 9220, 9500

HP device status

UDP port: 161

Chapter 7

120 Solve a problem

Faxing

  • UDP port: 427
  • TCP port: 9220

HP device installation

UDP port: 427

I am A certified Copier Technician.
It is so nice to give some help where possible and the forum is a great idea Thank You.Sometimes a picture speaks louder than words to find a solution.Should you find my help use full just give some credit for my effort please.
.Thank You.Copier-Pro
If you found this post helpful, you can let others know and also show your appreciation by clicking the “Accept as Solution”button, “Thumbs up" button!

#################################################################
I'M NOT AN HP EMPLOYEE AND DO ANSWER THESE QUESTION ON MY OWN BEHALF.
#################################################################
HP Recommended

I will keeep a copy of tour information.  Many thanks.  This is info I did not have, and it will surely be useful in the future.

HP Recommended

Extremely thorough and valuable info. Thanks.  I completely blew away the printer, reinstalled with what I hope is the latest drivers and accessories.  I no longer have the irritating error message every few minutes.   Thanks again for your response.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.