ANSWERED dreamsopedia.com and dreamsdirectory.com block most AirVPN servers.

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According to https://airvpn.org/routes/, only Andromeda, Chara, and Metallah can connect to dreamsopedia.com and dreamsdirectory.com.

On my computer, I could not resolve those domains from other AirVPN servers. mullvad servers can resolve and connect to them.

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It seems they are accessible now.