Proxy issues - many pages not available (caching issue?)

[Guest]

[emitojleyes]

Good morning all. We're having an issue when navigating in many pages.
The most oportunities we try to access some page, it shows me "Page not available"; but after pressing many times F5, it begins to show, firstly only with text, and in the next F5s the content finishes to show.

Is it a caching issue?

I can see in the log, many TCP_MISS entries...

I'll appreciate somebody to help me diagnose this issue, and solve it as well.

Best regards,

[emitojleyes]

Another thing. This mostly happens when in a PC, the Ip of the gateway is the Endian Server, and the IP of Primary DNS is my Windows 2000 Domain Server.