Policy
Change the maximum number of connections per host (HTTP 1.1)
This policy setting allows you to change the default connection limit for HTTP 1.1 from 6 connections per host to a limit of your choice (from 2 through 128). If you enable this policy setting, Internet Explorer uses the connection limit of your choice for HTTP 1.1. If you disable or do not configure this policy setting, Internet Explorer uses the default connection limit for HTTP 1.1 (6 connections per host). In versions of Internet Explorer before Internet Explorer 8, the default connection limit for HTTP 1.1 was 2.
644e75c23ac6 IESF_MaxConnectionPerServer Registry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MAXCONNECTIONSPERSERVER\iexplore.exeHKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MAXCONNECTIONSPERSERVER\iexplore.exePolicy notes
This policy setting allows you to change the default connection limit for HTTP 1.1 from 6 connections per host to a limit of your choice (from 2 through 128). If you enable this policy setting, Internet Explorer uses the connection limit of your choice for HTTP 1.1. If you disable or do not configure this policy setting, Internet Explorer uses the default connection limit for HTTP 1.1 (6 connections per host). In versions of Internet Explorer before Internet Explorer 8, the default connection limit for HTTP 1.1 was 2.