Only One user on the Internet at a time

[Ben]

Hi All,

Our network let users connect with Internet via a DSL Netopia Router and its
NAT feature. It was working find. Just since yesterday, only one user
allowed to access to Internet at a time.

Do you have any ideal. Could it be a virus? How could it be?

Thank you,

Ben

 

[myself]

Hi .. just a thought: did you change the default admin password on the DSL
router?

 

[Lanwench [MVP - Exchange]]

What happens when they try?