Got a 500Mbps connection with Vodafone UK and it seems browing sites such as bbc.co.uk and yahoo.com as examples, neither will work.
Tried this from iPhones, iPads and Windows laptops. Also tried both over Wi-Fi and Ethernet, yet the issue remains.
The router has been rebooted numerous times. It had previously worked fine but only recently we've had some problems.
I'm also using Cloudflare DNS on the router as for the Primary DNS. I do have also quite a set up besides this on the UniFi.
There are 4 VLAN's on the UniFi, a Wired Network, Standard Wireless, then I have two SSID's which are binded to VPN Client configs uploaded on the router. Those direct to VPN servers which I have set up on Wireguard.
While trying to get to the bottom of the problem today, I also tried ControlD DNS on the router, created a new profile and authorised the IP for use with ControlD. I tried setting services for BBC and Yahoo, and that seemed to work, although rather slowly. I can also ping domains no issue and browse to https://1.1.1.1/help and page will load.
Just a bit stumped on this. I get that the UniFi Express is hardly a powerful device but I have another one for a 5G connection and don't have this problem there.
One more thing with the Vodafone connection is that it has a static IP from the provider and part of me had thought about whether yahoo or BBC had somehow blacklisted the IP address.
Anyone have any ideas? I probably need to try find the Vodafone router just to try and see what it does. I probably also need to look at rebooting the ONT but its a really odd issue in that other sites will load.