Regarding answer 1 above, The option to forget a network printer in the android default print service menu does not exist if there is only one printer. I can't find a way to get the android default print service to reset itself or reload the network printer connection if the connection was initially misconfigured and subsequently corrected. (This happened on a printer shared by MacOs Sequoia shared printer which was initially configured wrong and then corrected. The android default print service still tries to use the initial incorrect configuration)