ARC Not Ready (ASUS Router)

Roon Core Machine

PC running Roon 2.0 (build 1128) production (64bit)

Networking Gear & Setup Details

I use an ASUS GT-AX11000 router running Asuswrt-Merlin firmware version 386.7_2. The PC is connected directly to the router with an ethernet cable. I live in an apartment, so there might be a multiple-NAT issue. (ethernet port on my wall might be coming from an apartment router instead of a simple switch)

Description of Issue

Roon ARC setting not ready. Been seeing the following error messages under the specified router settings:
*port forwarding profile used:
External Port 55002 (as shown on ROON)
Internal Port 55002
Protocol TCP
Internal IP Address as shown on ROON
**external IP masked

  1. Automatic IP, NAT Type Symmetric/Full cone, UPnP ON, Port Forwarding OFF/ON without profile/ON with profile*, DMZ ON/OFF, Firewall OFF.

{
“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“162.abc.de.f**”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“192.168.50.1”,“found_upnp”:true,“error”:“<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/\” s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/\“><s:Body><s:Fault>s:ClientUPnPError<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">718ConflictInMappingEntry</s:Fault></s:Body></s:Envelope>”}
}

  1. Static IP, NAT Type Symmetric/Full cone, UPnP OFF, Port Forwarding ON with profile, DMZ ON/OFF, Firewall OFF.

{
“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“162.abc.de.f”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“status”:“NotFound”}
}

I have also seen the following 2 error messages but wasn’t able to replicate the issue reliably.

{
“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“162.abc.de.f”,“router_external_ip”:“162.abc.de.f”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“192.168.50.1”,“found_upnp”:true}
}

{
“connectivity”: {“status”:“NetworkTimeout”,“status_code”:998,“error”:“”},
“external_ip”: {“actual_external_ip”:“73.abc.def.gh”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“status”:“NotFound”}
}

Hi @Frank_Huang,

On behalf of the team, please accept my sincere apologies that you’ve waited an unacceptable amount of time for assistance with your port forwarding issue. For context, we’ve been dealing with an uptick in support inquiries with the release of Roon 2.0, but there’s no excuse for having tried your patience for so long.

The diagnostics you’ve provided suggest two possibilities:

  1. There could be some enterprise-grade security interfering with the port forwarding. The 998 status code in the fourth diagnostic above indicates that certain requests between your Core and Roon’s servers (independent of ARC) aren’t making it through.

  2. There might be carrier-grade NAT here, or an upstream modem/router outside of your immediate apartment as you mentioned. We can try to pin down if it’s in the LAN or at the ISP level.

Would you mind clarifying the following?

  • Who is your fiber provider? Depending on their implementation and the geographic areas they cover, they may have implemented IPv6 on residential-tier accounts, or are otherwise dynamically reassigning public IPv4 addresses.
  • Also, try with UPnP enabled and a static IP; this is a slight variating on the settings you shared in item #2 above.

We’ll be watching closely for your response.

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