Domain controller not authenticatin at certain locations

we have a PDC located at site 1. We have 4 additional sites all
connected site 1 and authenticating to the domain and exchange
server. We are getting random sites that for some reason cannot
authenticate to the domain from one location but it will work from
another location. for example site 2 cannot attach to the domain but
site 4 can attach to the domain with the same login. Also we have the
same issue with the webmail not working. any ideas. thanks

Hello (E-Mail Removed),

Please give some more infos. How is DNS setup in your environment, how many
servers on each site and what kind of (DC, member)?

Best regards

Meinolf Weber
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> we have a PDC located at site 1. We have 4 additional sites all
> connected site 1 and authenticating to the domain and exchange
> server. We are getting random sites that for some reason cannot
> authenticate to the domain from one location but it will work from
> another location. for example site 2 cannot attach to the domain but
> site 4 can attach to the domain with the same login. Also we have the
> same issue with the webmail not working. any ideas. thanks