Mobility print not working due to Proxy

[TwistedHelixis]

Just testing out mobility print for onsite printing. We don't even need to enable the cloud printing option, just need to be able to print internally.

 

From a Windows client, when I run the installer it errors with, Failed to retrieve printer list

 

After playing about I just realized that if I disable the proxy settings on the Windows 11 device, the Mobility Print installer runs fine.

 

So then I thought, I could enter the IP and name of the print server into the proxy settings on the device as an exception, but that doesn't help.

 

This is similar to what I have entered into the proxy (user a proxy server, except for theses addresses....)

ip.ip.ip.*;nameofserver*

 

I also have 'Don't use proxy server for local addresses' ticked.

 

I would have thought that telling the client not to go through the proxy server for the print server, would be the same as disabling proxy completely, but apparently not.

 

Any ideas?

[Netwacky87]

Is the mobility print server using the same proxy as the Windows 11 client when its enabled?

[TwistedHelixis]

Quote

Is the mobility print server using the same proxy as the Windows 11 client when its enabled?

Yes

[Netwacky87]

This is from their website, are you using mDNS?

PaperCut Mobility Print and proxy support

At the moment proxy configurations are not supported with PaperCut Mobility Print. This is not a problem if you are using the mDNS or DNS-SD discovery methods, but is a problem if you are configuring the Known Host discovery method which requires an internet connection to get the latest installers and sign profiles for iOS clients. If this is a requirement for your organization, please reach out to the support team and mention “MOB-1752” which is the code we use to track demand for this feature.

[TwistedHelixis]

OK thanks. The thing is I am using mDNS, so should work, but also I am not trying to use the cloud option of Mobility print, which I have not enabled, which I am guessing would have issues with the Proxy, just the internal section of mobility print.

 

Currently, I am not trying to get it to work with a proxy, but now trying to workout what needs to be disabled in the proxy for it to work, if that makes sense.

 

[TwistedHelixis]

Just read the following....

Quote

Additionally, there's a known issue with the Windows on-network Mobility Print client (version 1.0.329) that will fail to discover printers in mDNS or DNS mode if there is a local proxy detected on the client, such as the Zscaler Client Connector. The workarounds for this issue are:

Temporarily disable the proxy to complete printer discovery
Use an older version (1.0.317 and below) of the on-network Windows client

Which I will look into next week.

[TwistedHelixis]

Does anyone has a copy of Mobility print 1.0.317

 

I cant find any past versions on the PaperCut website 😞