[BioC] ensembl connection

[TM]

Hi
I used to create an object by this command :
martMm <- useMart(biomart = "ensembl", dataset="hsapiens_gene_ensembl")
But now it dosen't work anymore and i get this error message :
unable to open connection
unable to resolve 'web50-node4.ebi.ac.uk'
Could you explain why it doesn't work ?
Thanks




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MOUROT Tabaré
Stagiaire Master Pro BioInfo
Plateforme transcriptome
Institut de Génomique Fonctionnelle
141, rue de la Cardonille
34094 Montpellier Cedex 5

Tel : +33 (0)4 67 14 29 64
E-mail : tabare.mourot at igf.cnrs.fr

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