A friend recently got BB+ and bought a wired/wireless router/modem from PN - SpeedTouch 725 I think.
I helped him get it set up and working but he started having problems whereby OE couldn't find the mail servers and IE couldn't find any websites - DNS lookup failure basically. The only solution seemed to be to reboot the PC. Going into the router's settings showed the correct IPs for the DNS servers.
I checked and double checked his Network settings and everything was fine. As a test I entered the IPs of the PN DNS servers in Network Settings rather than obtain them automatically and that fixed the problem.
Thing is, I don't have such a problem but I've got Premier and am using XP Pro whereas he's got XP Home and BB+. Could this be due to Idle Disconnects on BB+?