Bump - I am using transmission on a Mac and have had issues with it unless I use a script that one of the members here kindly made to allow me to connect even though i still get the same error message as always "Illegal character found in IP address. IPv6 is not supported" - I was told to disable IPV6 but tried to google for it and got a few solutions but unfortunately when I tried to implement in Preferences on El Capitan there was no option to disable just the three dropdown choices of Automatically, Manaully and Local-link. Further googling brought up a terminal command for it but that
"
Disable IPv6 in Mac OS X through Terminal
Launch Terminal, found within the /Applications/Utilities/ directory, and use the following commands appropriate to your situation. Note that many modern Macs only have wi-fi cards, rendering the ethernet option unnecessary. If the Mac has both wi-fi and ethernet networking, you’ll probably want to disable IPv6 for both interfaces.
Turning off IPv6 support for ethernet:
networksetup -setv6off Ethernet
Disabling IPv6 for wireless:
networksetup -setv6off Wi-Fi
You can also combine both of those commands into a single string to disable both wireless and ethernet, just use the following syntax:
networksetup -setv6off Ethernet && networksetup -setv6off Wi-Fi
Be sure to enter that string onto a single line to issue the command properly."
Didn't work and gave me an error too of " Ethernet is not a recognized network service. ** Error: The parameters were not valid."
Any thoughts ?