https://business.forums.bt.com/t5/Archive/Problem-with-replacing-BT-Hub/m-p/82096#M26402 <P>I'm replacing a BT hub with a dedicated PC running OPNSense (a fork of pfsense). I've set up quite a few of these on non BT customers connections and had no problems.</P><P>&nbsp;</P><P>I get everything to connect, using an HG612 modem with a PPPoE connection set up on the OPNSense box. It gets internet and everything seemed to work correctly. However, when I opened Outlook, I received a message from the exchange email set up on it that is the similar to the one described here&nbsp;<A href="https://support.microsoft.com/en-gb/help/2772058/the-name-on-the-security-certificate-is-invalid-or-does-not-match-the" target="_self">https://support.microsoft.com/en-gb/help/2772058/the-name-on-the-security-certificate-is-invalid-or-does-not-match-the</A></P><P>&nbsp;</P><P>Except the last line of text says the problem lies with Cloudflare rejecting the certificate. The OPNSense box is not configured to use Cloudflare for DNS. I asked the provider of the exchange email and they said they could not help. I am wondering if I need any particular DNS setting applied at the PPPoE connection.</P><P>&nbsp;</P><P>I tried adding a new email address and the same message appeared rejecting the autodiscover info because of Cloudflare. It happens on every computer connected to the network when the OPNSense box is used.</P><P>&nbsp;</P><P>Can anyone shed any light on this?</P> Tue, 09 Jul 2019 07:30:22 GMT AngusStewart 2019-07-09T07:30:22Z https://business.forums.bt.com/t5/Archive/Problem-with-replacing-BT-Hub/m-p/82096#M26402 <P>I'm replacing a BT hub with a dedicated PC running OPNSense (a fork of pfsense). I've set up quite a few of these on non BT customers connections and had no problems.</P><P>&nbsp;</P><P>I get everything to connect, using an HG612 modem with a PPPoE connection set up on the OPNSense box. It gets internet and everything seemed to work correctly. However, when I opened Outlook, I received a message from the exchange email set up on it that is the similar to the one described here&nbsp;<A href="https://support.microsoft.com/en-gb/help/2772058/the-name-on-the-security-certificate-is-invalid-or-does-not-match-the" target="_self">https://support.microsoft.com/en-gb/help/2772058/the-name-on-the-security-certificate-is-invalid-or-does-not-match-the</A></P><P>&nbsp;</P><P>Except the last line of text says the problem lies with Cloudflare rejecting the certificate. The OPNSense box is not configured to use Cloudflare for DNS. I asked the provider of the exchange email and they said they could not help. I am wondering if I need any particular DNS setting applied at the PPPoE connection.</P><P>&nbsp;</P><P>I tried adding a new email address and the same message appeared rejecting the autodiscover info because of Cloudflare. It happens on every computer connected to the network when the OPNSense box is used.</P><P>&nbsp;</P><P>Can anyone shed any light on this?</P> Tue, 09 Jul 2019 07:30:22 GMT https://business.forums.bt.com/t5/Archive/Problem-with-replacing-BT-Hub/m-p/82096#M26402 AngusStewart 2019-07-09T07:30:22Z