The band announced the 2011 dates for the Progress tour earlier this week and fans were expected to rush for tickets as it is the first time the band has toured with Robbie Williams in 15 years.
According to MTV, a statement from the band said: 'Due to totally unprecedented demand all ticket agents have struggled to cope with the number of people logging on to try and buy Take That tickets.
'The technology available has not been able to keep up with demand however all ticket agents are confident they will be able to process all enquiries so are asking fans to keep trying.'