HELP!! Freshfields.org.uk website now live but is being blocked by end users routers?

HI,

Pls help... have you ever heard of a situation where a wordpress site gets blocked by end users firewalls? I am seeing the site fine but many users of the site are not able to even view the site and are getting error messages (see attached) What about the site could be triggering this?

Its BT and Sky routers as far as we know

I really have no idea where to turn as to working out why this is happening?

Pls Pls help :slight_smile:

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