MobileRead Forums - View Single Post - Error: "Failed to connect to port 9090. Try a different value."

Mob201503 · 02-14-2026, 01:29 PM

Thanks for replying Kovid.

But both "the main calibre program" and "calibre worker process" are set to be Allowed in Norton365's Smart Firewall Program Controls, but I still encounter the issue. Also completely disabled Norton Auto-Protect & Smart Firewall but to no avail.

I haven't recently changed settings in Norton so I really don't know what's up.

02-14-2026, 01:29 PM	#3
Mob201503 Enthusiast Posts: 29 Karma: 1234 Join Date: Mar 2015 Device: Bigme B751 (BW version), Kindle PW3 (7th Gen)	Thanks for replying Kovid. But both "the main calibre program" and "calibre worker process" are set to be Allowed in Norton365's Smart Firewall Program Controls, but I still encounter the issue. Also completely disabled Norton Auto-Protect & Smart Firewall but to no avail. I haven't recently changed settings in Norton so I really don't know what's up.