Same problem here. Was working just fine earlier.
Also, just finished with small GB run and had no problems.
And it shows I have 0/1 available for use, yet still get the message others are getting.
UPDATE >> Rebooting, masterbating to animal porn, rebooting again, cleaning off monitor so I can see again, reboot yet again, steal 16 IP addresses, one last masterbation for good measure and....
...other than a little sore, it still doesn't work.