I recently had to reinstall Comodo Firewall on my Windows XP SP2 machine. Since then I have discovered that I cannot check the ink levels of the cartridges in my USB printer because the computer says it is unable to establish a two-way communication with the printer.
I am wondering if my new installation of CFP might be the cause but don’t know how to find out. Could someone help me please?
For the record, two-way communication existed when I first installed the printer software when I got the printer and before I reinstalled CFP. Since then I have uninstalled the printer software and reinstalled it but it has made no difference. Apart from this and the reinstallation of CFP, nothing has changed in my computer