Центр справки Mullvad

If you have set it to maximum security, "which will block most applications except web browsing, email, iTunes and VPN." , try reducing it to typical to see if you then can connect. Or use port 53 for WireGuard / OpenVPN to connect.

Certain routers block Mullvad's website and API, and calls it "malware". Some routers from Asus and TP-Link include a DNS filter from Trend Micro which blocks Mullvad because using Mullvad will prevent their filter from working. To turn it off follow these instructions. ASUS: Go to AiProtection > Network Protection > turn off "Malicious Sites Blocking". TP-Link: Go to HomeCare or Security > Antivirus > turn off "Malicious Content Filter". Some Verizon Fios routers contain McAfee Home Network Protection which can also block Mullvad. In that case turn off Parental controls.

Open the .ovpn file in a text editor and remove the line "tun-ipv6" before you import it.

Try this when callers can't hear you. Fritz!Box > Telephony -> Own numbers -> Connection settings Activate x Use a random port for the FRITZ!Box's SIP service to the SIP registrar.