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        Help Center/Virtual Private Cloud/FAQs/Connectivity
        Updated on 2026-03-26 GMT+08:00
        View PDF

        Connectivity

        • Does a VPN Allow Communication Between Two VPCs?
        • Why Cannot I Access Public Websites Through Domain Names or Access Internal Domain Names on the Cloud When My ECS Has Multiple Network Interfaces?
        • What Are the Priorities of the Custom Route and EIP If Both Are Configured for an ECS to Enable the ECS to Access the Internet?
        • Why Are There Intermittent Interruptions When a Local Host Accesses a Website Built on an ECS?
        • Why Do ECSs Using Private IP Addresses in the Same Subnet Only Support One-Way Communication?
        • Why Does Communication Fail Between Two ECSs in the Same VPC or Packet Loss Occur When They Communicate?
        • Why Can't My ECS Use Cloud-init?
        • Why Can't My ECS Access the Internet Even After an EIP Is Bound?
        • Why Is My ECS Unable to Communicate at a Layer 2 or Layer 3 Network?
        • How Do I Handle a BMS Network Failure?
        • Why Does My ECS Fail to Obtain an IP Address?
        • How Do I Handle a VPN or Direct Connect Connection Network Failure?
        • Why Can My Server Be Accessed from the Internet But Cannot Access the Internet?
        • Why Can't I Access Websites Using IPv6 Addresses After IPv4/IPv6 Dual Stack Is Configured?
        • Why Does My ECS Fail to Communicate with Others After It Has Firewall Installed?

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