Website is down, not accessible or buggy?
What to do if the site MTD.OPTIDEV.SE is unavailable?
If MTD.OPTIDEV.SE works, but you cannot access the site or its individual page, try one of the possible solutions:
To delete the cache and get the current version of the page, refresh the page in the browser using the key combination Ctrl + F5.
Access to the site is blocked.
Clear your browser cookies and change the IP address of the computer.
Antivirus and firewall.
Check that anti-virus programs (McAfee, Kaspersky Antivirus or an analogue) or a firewall installed on your computer do not block access to MTD.OPTIDEV.SE.
Clear the DNS cache on your computer and try to access the site again.
Watch how-to video ↓
VPN and alternative DNS services.
VPN: for example, NordVPN;
Alternative DNS: OpenDNS or Google Public DNS.
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