Since last Saturday, various NET Virtua users (and other providers controlled peel NET) has faced problems to enter the site DealExtreme. The problem was not reported by any user other providers, Therefore it seems that the problem is in the same NET.
As I am not user Virtua'm not like trying to isolate the problem, but chances are it is a DNS problem, recommend that users use the Virtua DNS servers OpenDNS, are: 18.104.22.168 and 22.214.171.124. I've put them as alternative since Telefonica had similar problems with the Speedy, and whenever a problem occurs (something means frequent with Speedy) they are promoted to holders. No OpenDNS há detailed instructions on how to change the system and in many routers.
If the tip of the DNS does not work, Another option is to use a proxy, configuring the proxy option in the browser or with services like Anonymouse, But be aware that these cases, all traffic (including usernames and passwords) pass through the proxy, then make sure you're using a trusted service.
In the case of proxies that support the https protocol, DealExtreme na Aconselho enter using https://www.dealextreme.com, so that the data will be encrypted and unreadable for operators of any proxy or intermediary in connection.