https://business.forums.bt.com/t5/Archive/DNS-Issues/m-p/82758#M26550 <P>I have a problem with DNS at one particular site.</P><P>My BT Business broadbands installed elsewhere (including on the same exchange) don't have a problem.</P><P>At this site 3-4 times a week DNS lookups start to fail, there's no apparent pattern to the failure times or network activity.</P><P>&nbsp;</P><P>During the outage I can ping extenal DNSs but not BT's DNSs and nslookups to <U>all</U> DNS timeout.</P><P>&nbsp;</P><P>The problem is rectified by rebooting the router (I'm using Draytek devices) but this is a business site so having to have the customer reboot the router several times a week is not acceptable.</P><P>&nbsp;</P><P>Having the router configured to use BTs DNS or an extenall DNS (e.g. 8.8.8.8 or 1.1.1.1) makes no difference.</P><P>&nbsp;</P><P>Anyone have any suggestions as to the problem?</P><P>&nbsp;</P><P>MikeW</P> Tue, 11 Feb 2020 16:01:27 GMT Reklaw-UK 2020-02-11T16:01:27Z https://business.forums.bt.com/t5/Archive/DNS-Issues/m-p/82758#M26550 <P>I have a problem with DNS at one particular site.</P><P>My BT Business broadbands installed elsewhere (including on the same exchange) don't have a problem.</P><P>At this site 3-4 times a week DNS lookups start to fail, there's no apparent pattern to the failure times or network activity.</P><P>&nbsp;</P><P>During the outage I can ping extenal DNSs but not BT's DNSs and nslookups to <U>all</U> DNS timeout.</P><P>&nbsp;</P><P>The problem is rectified by rebooting the router (I'm using Draytek devices) but this is a business site so having to have the customer reboot the router several times a week is not acceptable.</P><P>&nbsp;</P><P>Having the router configured to use BTs DNS or an extenall DNS (e.g. 8.8.8.8 or 1.1.1.1) makes no difference.</P><P>&nbsp;</P><P>Anyone have any suggestions as to the problem?</P><P>&nbsp;</P><P>MikeW</P> Tue, 11 Feb 2020 16:01:27 GMT https://business.forums.bt.com/t5/Archive/DNS-Issues/m-p/82758#M26550 Reklaw-UK 2020-02-11T16:01:27Z