Ring: cacheableLookup ENOTFOUND localhost error after installing plugin

[dskaggs]

Bug Report

Describe the Bug

I am unable to get the homebridge-ring plugin to function with Homebridge due to the error message below.

To Reproduce

Steps to reproduce the behavior:

• Start HomeBridge
• Search for plugin on Plugins page
• Install plugin from search results
• Restart HomeBridge from UI
• See Failed to reach Ring server at https://oauth.ring.com/oauth/token. cacheableLookup ENOTFOUND localhost. Trying again in 5 seconds... in log output on Status page every 5 seconds
• Observe no camera listed in Home app on iOS

Expected behavior

Ring doorbell camera appears in the Home app on iOS

Screenshots/Logs

If applicable, add screenshots and log output to help explain your problem.

Additional context

I first tried this plugin on version 9.12.5 a few weeks ago and was not able to get it to work for the same error as above. I tried reverting to 9.12.4 but got the "enhance your calm" error. I tried 9.12.6 as well but the cacheableLookup error remained. I loaded 9.12.8 this morning and observed the same error.

I checked my /etc/hosts file as noted in this comment on #497 and didn't see anything out of the ordinary there:

root@homebridge:~# cat /etc/hosts
127.0.0.1       localhost
::1             localhost ip6-localhost ip6-loopback

ff02::1         ip6-allnodes
ff02::2         ip6-allrouters

127.0.1.1       homebridge

I even went so far as to disable IPv6 using instructions I found here.

root@homebridge:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 123.45.678.90  netmask 255.255.255.0  broadcast 123.45.678.255
        ether xx:xx:xx:xx:xx:xx  txqueuelen 1000  (Ethernet)
        RX packets 5284  bytes 1171778 (1.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4613  bytes 790281 (771.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

I can ping the URL from a shell and see the IPv4 address returned:

root@homebridge:~# ping oauth.ring.com
PING oauth.ring.com.cdn.cloudflare.net (104.17.128.1) 56(84) bytes of data.
64 bytes from 104.17.128.1 (104.17.128.1): icmp_seq=1 ttl=54 time=13.3 ms
64 bytes from 104.17.128.1 (104.17.128.1): icmp_seq=2 ttl=54 time=14.3 ms
64 bytes from 104.17.128.1 (104.17.128.1): icmp_seq=3 ttl=54 time=12.8 ms
64 bytes from 104.17.128.1 (104.17.128.1): icmp_seq=4 ttl=54 time=12.7 ms
64 bytes from 104.17.128.1 (104.17.128.1): icmp_seq=5 ttl=54 time=13.4 ms
64 bytes from 104.17.128.1 (104.17.128.1): icmp_seq=6 ttl=54 time=12.8 ms

Homebridge Ring Config

Post homebridge-ring platform config _without sensitive information_

{
     "refreshToken": "<redacted>",
     "platform": "Ring"
}

Environment

• OS: Raspbian GNU/Linux 10 (buster)
• Node.js: 12.19.1
• NPM: 6.14.8
• homebridge-ring: 9.12.8 (also seen in 9.12.5 and 9.12.6)
• homebridge: 1.1.6
• hoobs: N/A

Installed Plugins

• Homebridge UI (homebridge-config-ui-x v4.34.0)
• Homebridge Vivint Latest (@michaelmade/homebridge-vivint-latest v0.0.7)
• Homebridge Sonos (homebridge-sonos v0.4.0)
• Homebridge Vivint Latest (@michaelmade/homebridge-vivint-latest v0.0.7)
• Homebridge Ring (homebridge-ring v9.12.8)
• Homebridge Weather (homebridge-weather v1.12.4)

[dgreif]

Can you try version 9.12.2?

[dskaggs]

Installed 9.12.2 and restarted HomeBridge from the UI. Below is the initial log output:

[12/5/2020, 11:56:33 AM] [Ring] 404 from endpoint https://api.ring.com/clients_api/ring_devices
[12/5/2020, 11:56:33 AM] [Ring] Session hardware_id not found.  Creating a new session and trying again.
[12/5/2020, 11:56:34 AM] [Ring] Configuring 1 cameras and 2 devices for location "<City Redacted>" - locationId: <redacted>
[12/5/2020, 11:56:34 AM] [Ring] Adding new accessory <UUID redacted> lpd_v2 Front Door
[12/5/2020, 11:56:34 AM] [Ring] Adding new accessory <UUID redacted> location.mode <City redacted> Mode
[12/5/2020, 11:56:48 AM] [Insteon Local Platform] Error getting power state of Master Bedroom Keypad
[12/5/2020, 11:56:58 AM] [Temperature] Fetched temperature value 11.49deg of type 'current' for accessory Temperature
[12/5/2020, 11:56:58 AM] [Temperature] Fetched humidity value 50% of type 'current' for accessory Temperature
[12/5/2020, 11:57:01 AM] [Ring] Failed to reach Ring server at https://api.ring.com/clients_api/dings/active.  Stream closed with error code NGHTTP2_ENHANCE_YOUR_CALM.  Trying again in 5 seconds...

The error code on the last line is repeating every 5 seconds.

EDIT:
The iOS Home app now shows "Front Door" under "Favorite Cameras" but with no video and a red icon in the top right of the image header. When I open the camera, it says "No Response"

[gallarda]

I get the same cacheableLookup ENOTFOUND localhost error with v9.12.5 and newer. If I revert to v9.12.4 the problem goes away. I am running homebridge on Windows 10 with nodejs v14.15.1. I have localhost in my Windows hosts table as well as in DNS for my default domain.

[clipse2004]

my error looks like:
Failed to reach Ring server at https://app.ring.com/api/v1/mode/location/xxxxxxxxxxxxxxxxxxxxxxxxxxx. queryA ESERVFAIL app.ring.com. Trying again in 5 seconds...

[dskaggs]

FYI - Upgrading to NodeJS v12.20.0 and installing v9.12.8 still produced the cacheableLookup ENOTFOUND localhost error

[dgreif]

@dskaggs what type of router do you have? If it's an Eero, check out https://github.com/homebridge/homebridge-raspbian-image/wiki/How-To-Fix-Eero-Router-Internet-and-DNS-Connectivity-Issues

[dskaggs]

I use a Ubiquti Networks EdgeRouter X. I've updated the firmware to be current. The RPi that runs HomeBridge is on a VLAN that bypasses all my ad blocking configurations and uses Google DNS for name resolution.

I am able to ping oauth.ring.com from the RPi in question:

pi@homebridge:~ $ ping oauth.ring.com
PING oauth.ring.com.cdn.cloudflare.net (104.17.127.1) 56(84) bytes of data.
64 bytes from 104.17.127.1 (104.17.127.1): icmp_seq=1 ttl=54 time=11.4 ms
64 bytes from 104.17.127.1 (104.17.127.1): icmp_seq=2 ttl=54 time=11.4 ms
64 bytes from 104.17.127.1 (104.17.127.1): icmp_seq=3 ttl=54 time=11.2 ms
64 bytes from 104.17.127.1 (104.17.127.1): icmp_seq=4 ttl=54 time=11.3 ms
64 bytes from 104.17.127.1 (104.17.127.1): icmp_seq=5 ttl=54 time=11.3 ms

[dgreif]

@dskaggs can you try 9.14.1? I removed all DNS caching, which should hopefully get rid of your issue.

[dskaggs]

@dgreif So far so good. I am able to to access the camera from the Home app. I get no errors in the logs and am seeing log entries for motion detection. I'll continue to monitor it today and report back if I see anything. If not, I'll close the ticket tomorrow.

Thanks so much!

[gallarda]

9.14.1 is working well for me too. Thanks for the fix!

[dskaggs]

Looking good. No errors in the log and no issues with operation in the last 24 hours. Thanks again!