Launch App server configuration error

Hi,

has anyone got error like this on app lauch?
image

This has started yesterday after the lunch with 4-5 users after the night it cause about 70% users.

when reinstalling app it completes with an error which says:

ERRORS:
Headers Error


   at Epicor.ISV.ClientInstaller.Services.SevenZipCaller.ReportInvocationFailure(String error)
   at Epicor.ISV.ClientInstaller.Services.SevenZipCaller.RunCommand(String arguments)
   at Epicor.ISV.ClientInstaller.Services.SevenZipCaller.ExtractArchiveToDirectory(String directoryPath, String archivePath, String tempDirectory)
   at Epicor.ISV.ClientInstaller.Services.ExtractReleaseClientFiles.ExtractReleaseClientToTempDirectory(String targetLocation, String tempDirectory)
   at Epicor.ISV.ClientInstaller.Services.ExtractReleaseClientFiles.ExtractReleaseClientZip()
   at Epicor.ISV.ClientInstaller.Services.InstallerController.DownloadClientFiles()
   at Epicor.ISV.ClientInstaller.Services.InstallerController.InstallClient()
   at Epicor.ISV.ClientInstaller.Services.InstallWindowController.ExecuteInstallation()

Firewall does not do any strange things. Wourk arround as copying client path from working machine to failed one, does lead to the same error.

So, found an issue, seems antivirus in some machines decided that epicor web link contains a virus. Adjusted security setting, problems gone