Unable to connect the printer to LPR Port
I have 3 printers installed on a remote site and all are OKI C5650n, the printers are configured with a static IP on a router and I am using the IPP to print on a distance. Port 631 is open for this.
Problem: When attempting to print, I get an error "unable to connect the printer to LPR Port" When I put the printer in the DMZ in the router, it prints. I cannot leave it like that I have two other printers that works well even in a single IPP also I had opened ports and it works.
I tried everything including port scan by doing an impression of an internal IPP of the printer with the Wire shark I found a multitude of port when printing, and the worst part is that I can raise five impressions that never uses the same ports has been Apart from the 631 (Logic) In the configuration menu of the printer you cannot disable the LPR If anyone has an idea I'm really pleased.
Thank you all!