Thanks Miyako,
This link:
https://serverfault.com/questions/648424/windows-server-2012-r2-runs-out-of-ephemeral-ports-though-it-shouldnt
... seems like it's leading me on the right path.
I'm having our IT guys follow up on that.
On 12/14/18, 8:26 PM, "4D_Tech on behalf of Keisuke Miyako via 4D_Tech"
<[email protected] on behalf of [email protected]> wrote:
quick Google results, so don't quote me on this
https://support.microsoft.com/en-us/help/832017/service-overview-and-network-port-requirements-for-windows
other pages (old, window server 2008-ish)
says the number socket ports is 65535-49152=16383
but the range can be expanded with "netsh"
e.g
netsh int ipv4 set dynamicport tcp start=1025 num=64511
https://support.microsoft.com/en-gb/help/929851/the-default-dynamic-port-range-for-tcp-ip-has-changed-in-windows-vista
see also
https://serverfault.com/questions/648424/windows-server-2012-r2-runs-out-of-ephemeral-ports-though-it-shouldnt
This feels like some kind of TCP overload to me.
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