[squid-users] 502 Bad Gateway ??

[Phibee Network operation Center <noc@xxxxxxxxxx>]

Hi

when my users want going on www.pagesjaunes.fr, he have a "502 Bad 
Gateway" and when he connect directly
without proxy that's work ...

anyone have a idea of the 502 bad gateway problems ?

all of my user are authentified by ntlm

thanks for your help

bye