Diggz Team

These may help you unblock RD & more servers. Try a mobile hotspot as well.
If your router or ISP app is not mentioned below, search your ISP site for blocking apps and router options, and disable them.

BT - TURN OFF SMARTSETUP
http://bt.custhelp.com/app/answers/detail/a_id/44328/~~/what-is-smart-setup-on-the-bt-hub%3F-how-can-i-turn-it-on-and-off%3F
If link doesn't work use search here:
https://community.bt.com/

To turn off Spectrum's Router Security:
Open MySpectrum app
Click the Services option at the bottom
Click the Security Shield button
At the bottom, under Settings, turn off Security.

Comcast/Xfinity routers got advanced security feature you need to turn OFF
https://www.xfinity.com/support/articles/using-xfinity-xfi-advanced-security

EE - TURN OFF CONTENT LOCK / ORANGE SAFEGUARD
http://ee.co.uk/help/help-new/safety-and-security/content-lock/switching-content-lock-on-or-off

Click here for EE wireless secutiry settings
http://ee.co.uk/help/phones-and-device/home-broadband/bright-box-wireless-router

PLUS NET SAFEGUARD - TURN OFF
https://www.plus.net/help/broadband/how-to-use-plusnet-safeguard/

SKY - TURN OFF SKYSHIELD
https://www.sky.com/help/articles/sky-broadband-shield-explained

TALKTALK - TURN OFF HOMESAFE
https://help2.talktalk.co.uk/how-use-talktalk-homesafe®

VIRGIN - TURN OFF WEBSAFE
https://help.virginmedia.com/system/templates/selfservice/vm/help/customer/locale/en-GB/portal/200300000001000/article/HELP-2244/How-to-use-Web-Safe

Virgin Media Router - Turn off IP Flood Detection
Access Router settings
Advanced Settings/Security/Firewall/untick IP Flood Detection
select Apply Changes

Hub Advanced Settings | Virgin Media
https://www.virginmedia.com/help/virgin-media-configure-advanced-settings-on-your-hub

Click here for VODAFONE CONTENT CONTROL
https://support.vodafone.co.uk/

Three UK Home Broadband - Call them to disable adult filter.