In most situations where you can’t access one specific site, it could be that the actual website you’re trying to get to is down. Simply try to access the site from another connection (e.g. another broadband or mobile data); if it doesn’t load, you know the problem is with their end. If it does, then there’s one more thing to try.
We all know that there are bad programs floating around and there is always a chance something might infect your PC. Whilst most viruses are obvious and prevent you doing even the most basic of work, some others are more nefarious in purpose and are not easy to identify.
We always suggest running a full virus scan in the event something like this happens; if it’s been fine up until now, it will most likely be something on your device stopping it.
One of the best free software available is Malware Bytes which can be downloade here. Install the software that downloads and run the scan; it can take up to an hour (depending on how much is on your device), but you should still be able to work on it in the meantime. Once the scan has completed, remove/clean any threats that it finds and reboot your machine.
If the issue persists after this, please contact Vadtel Support on 01903 256 555.