Can't print via WiFi connected printer

[Bert_Plitt]

Hello All -- Can anyone tell me why I get an error when trying to print to a printer with a wireless connection but not with a USB or ethernet connection.  The attached sample project prints fine on my Epson ET-2700 via the USB connection, but produces "Error printing on Epson" via the wireless connection.  The demo uses the Printer.Canvas.TextOut function.  Is there a special setting needed somewhere to allow printing via WiFi connection?

I'm on Windows 10, Lazarus ver 2.2.0 RC1, FPC ver 3.2.2

[jamie]

What does the name of the Wifi printer look like in the windows tray ?

Are you reselecting the printer other than using the default printer ?

[Bert_Plitt]

Jamie -- Thanks for the reply.  I'm not sure what you're asking.  The attachment is two screen shots of the two printer selections (from a Lazarus dialog box).  One prints OK the other produces a 'Cannot print' error.  Neither is the default printer in my setup.  BTW - Both printer names are ones that I entered, so I would not think the names are significant to the problem.

[mica]

hmmm WSD connection .... try TCP connection

WSD always makes problems

[Bert_Plitt]

Mica -- I don't know how to change to TCP.  The current connection was magically done automatically by the router and printer.  And by-the-way, all other applications on my PC print just fine via the WiFi connection shown, which makes me think it's a Lazarus bug.

[jamie]

Jamie -- Thanks for the reply.  I'm not sure what you're asking.  The attachment is two screen shots of the two printer selections (from a Lazarus dialog box).  One prints OK the other produces a 'Cannot print' error.  Neither is the default printer in my setup.  BTW - Both printer names are ones that I entered, so I would not think the names are significant to the problem.

The path looks like a IPV6 which also looks like it's incomplete with maybe some corruption in play.