Radical preacher Anjem Choudary has been remanded in custody after having his bail revoked.
Choudary, 48, appeared at Westminster Magistrates' Court, which heard he met an individual he was ordered not to under the conditions of his bail.
Choudary, of Hampton Road in Ilford, east London, and his co-accused Mohammed Rahman, 32, of Sidney Street in Whitechapel, east London, are due at the Old Bailey on December 11 with a provisional trial date set for next year.
They are both charged with inviting support for the banned terror group Isil, also known as Isis or Islamic State, between June 29 2014 and March 6 2015, by posting on social media.
Choudary was released from the top security Belmarsh prison in September after being granted bail by Mr Justice Saunders, who laid down 10 strict conditions including not using electronic devices, having a surety provided of £15,000 and non association with co-defendants or others arrested in September 2014 or linked arrest in December 2014.
In his ruling, he said his main concern was to avoid "anything being disseminated publicly by either of them or on their behalf which would encourage others to go to live in Syria as part of their religious duty".