Hi! In a Windows domain I have about 60 MS Windows XP Pro. SP3 machines with ESET NOD32 AV Business Edition 4. All PCs have similar software configuration and the same NOD32 AV configuration. A few of the PCs have a problem with NOD32 AV web access protection. Mostly the web access protection works fine but occasionally the HTTP traffic gets totally blocked and no web browser is able to open web pages. At such occasions I notice the following: ESET NOD32 AV GUI (egui.exe) says that antivirus and antispyware protection is active. There is no errors or warnings in the Event Log. The network connectivity is in order and other network protocols work fine (e.g. DNS resolving, file sharing, connection to the MS Exchange Server). So, I'd say the problem must be caused by NOD32 AV web access protection which filters HTTP traffic. All PCs have both Internet Explorer 8 and Mozilla Firefox 3.6 installed. The problem occurs regardless of the user's preferred browser. The problem first appeared with NOD32 AV v. 4.0.474. The upgrade to NOD32 AV v. 4.2.40 didn't make any difference. In versions 4.0.314 and 3.0.* there was no such problem. If the PC is restarted, the NOD32 AV Web access protection works well again but the problem may reoccur the same day, which annoys the users. The NOD32 configuration and system info are attached. Has anyone seen such a problem? Any suggestions on fixing it? -- rpr.