Wiki Outage

[VirusZero]

Both browsers doesn't necessarily mean it's your computer at all. There could be something on this host's end.
They have firewalls and sometimes innocent people's IPs get caught up in them. So your IP may have been caught by their firewall and is blocking you. Which if this is the case no computer you use from your home IP would be able to connect at all (since they all would be connecting with that one IP).

So to rule out whether it's your IP blocked from their end or it's your computer itself, do you have another computer (on the same network) you can try it on? If so could you do that and let me know how it goes. If you still can't connect, I'll open a support ticket and get them to look into this situation.