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<TITLE>unbound_1.16.0rc1 fails to start</TITLE>
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<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">Installing</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"> <FONT FACE="Calibri">unbound_1.16.0rc1</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"><FONT FACE="Calibri"> over the top of the current install</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"> <FONT FACE="Calibri">(</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"><FONT FACE="Calibri">unbound_1.</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"><FONT FACE="Calibri">15</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"><FONT FACE="Calibri">.0</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"><FONT FACE="Calibri">) it</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"><FONT FACE="Calibri"> fails when started</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:32:12 C:\Program Files\Unbound\unbound.exe[12244:0] error: setsockopt(..., IPV6_MTU, ...) failed: Bad protocol option.</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:38:02 C:\Program Files\Unbound\unbound.exe[1192:0] error: setsockopt(..., IPV6_MTU, ...) failed: Bad protocol option.</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:40:01 C:\Program Files\Unbound\unbound.exe[9700:0] error: setsockopt(..., IPV6_MTU, ...) failed: Bad protocol option.</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">With verbosity 4:</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">[1653835814] C:\Program Files\Unbound\unbound.exe[12340:0] debug: winservice - apply cfg</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: setup SSL certificates</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: Adding Windows certificates from system root store to CA store</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: Completed adding Windows certificates to CA store successfully</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: winservice - open ports</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: creating udp6 socket ::1 53</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] error: setsockopt(..., IPV6_MTU, ...) failed: Bad protocol option.</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">Edition Windows 10 Pro</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">Version 21H2</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri (Hebrew)">Installed on    ý04/ý04/ý2022</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">OS build        19044.1708</FONT></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">Experience      Windows Feature Experience Pack 120.2212.4170.0</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN></P>

<P DIR=LTR><SPAN LANG="en-gb"><FONT FACE="Calibri">RayG</FONT></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN><SPAN LANG="en-gb"></SPAN></P>

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