: ISP issue browsing "sonos.com" - need to diagnose and prove I am unable to browse to a website "sonos.com" with my ISP (virgin). I have ruled out browsers, PCs, macs, routers, wifi, etc. Other

@Angela700

Posted in: #Dns

I am unable to browse to a website "sonos.com" with my ISP (virgin). I have ruled out browsers, PCs, macs, routers, wifi, etc. Other ISPs (even other virgin connections in different areas!) supply this site no problem.

I am 99% convinced there is a DNS issue lurking here. There is something fishy about the DNS for the site : What I notice is that online DNS sites tell me the right IP address for "sonos.com", but not for "www.sonos.com".

Anyway when I type "sonos.com" (or "www.sonos.com") the browser (any/all of the 4 I tried) fails to display the page. Firefox gives a "connection was reset" error. If I browse to sonos.com using its correct IP address it works OK. Browsing to sonos.com or sonos.com works fine with other ISPs of course.

Questions:
1 Does anyone have any idea what might be going on here?
2 Any suggestions as to tools/monitors to help investigate/prove what is going on

I can then take this up with virgin and/or sonos.

Thanks

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