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Not Reproducible

Votes

0

Found in

Issue ID

764500

Regression

No

Change IPv6 to IPv4 causes DNS issue

Mono

-

repro:
1) set the environment IPv6
2) download a content via HttpWebRequest
3) change the environment IPv4
4) download a content with the same URL via HttpWebRequest
5) fail to resolve the url.

seemingly, DNS cache remains.
ServicePointManager.DnsRefreshTimeout is not implemented.
assign HttpWebRequest.ServicePoint.MaxIdleTime zero can be workaround.

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