Random websites blocked

[hellothesmartb]

I have a dongle that I use at work and for some reason, very random websites ( definitely not spam websites) are blocked. I know it's the internet dongle blocking them because if I swap to my phone hotspot (not with EE), they work fine. 
I've followed the 'unblocking' guidance found on here but it's not led anywhere (I don't think they offer this service anymore) so where do I go for support - other than ringing EE? I have disability needs and ringing is a problem for me so isn't really an option. I've used the chat function before but I can't seem to find it now. 

[Northerner]

Hi @hellothesmartb 

What is the message on the blocked sites. This will give you an idea of the issue. 

Mostly this either your content lock or virus software. 

Thanks 

[hellothesmartb]

"ERR_ADDRESS_UNREACHABLE" 

It's reachable on all other internet though. I should have mentioned, I'm a web developer 🙂 

[Northerner]

Hi @hellothesmartb 

Have you tried a different browser and cleared your browser cache. 

That error is normally a DNS issue. Try restarting your router. 

Thanks 

[hellothesmartb]

Yes, I clear my cache several times a day and tried different browsers; all standard things for a web developer to try. My router is a dongle, it restarts daily. It's not a DNS issue on the website side, it's only not working via the dongle. And there's more than one site doing it. 

[Christopher_G]

Are you able to try the dongle in a different device, @hellothesmartb? Just to see if you have the same issues with the same sites?

Chris

[hellothesmartb]

That's a good idea, I'll try it when I get back home. 
Still doesn't help me at work though as I need it to work there. 

[hellothesmartb]

Tried it at a different location and the same issue so it's definitely the dongle causing the issue and the not the websites. 

[Christopher_G]

Did you try the dongle in a different device, @hellothesmartb?

Chris

[hellothesmartb]

I did - different device and location.