Chromecast With Google TV behaving funky... [SOLVED]

[motamedn]

Chromecast with Google TV (GCTV) is acting up. It says connected to wifi but no internet available. Netflix says there is no internet. Yet, all other apps can stream. And the Smart TV's Netflix app can stream. Things were working just fine last week. I have three GCTV and they all have the same issue. If I connect it to a mobile hotspot the errors go away.

Network is setup as DHCP on GCTV. On OPNSense, static reservations are set for each GCTV and DNS is specified for them as 8.8.8.8 and 8.8.4.4.

Any idea how to troubleshoot this? Google support says I need to enable UPNP but that did not help.

I am running Ubiquiti Unifi Access Points. WiFi Optimization is off and Multicast Enhancement is on (IGMPv3) and Multicast/broadcast filtering is OFF.

**EDIT SOLVED**
OK this is fixed. I had followed instructions to port-forward traffic to port 53 on opnsense to run mimugmail's adguard home. My instructions follow to help anyone else out of a similar jam. I disabled the port forward and instead put on two firewall rule for LAN as follows:

Rule 1:
ALLOW
Source: [Google_devices] -- this is an alias set up with all IP for my google devices
Source Port: *
Destination: !Lan address
Destination Port: 53 (DNS)

Rule 2:
REJECT
Source: *
Source Port: *
Destination: !Lan address
Destination Port: 53 (DNS)

[motamedn]

OK this is fixed. I had followed instructions to port-forward traffic to port 53 on opnsense to run mimugmail's adguard home. My instructions follow to help anyone else out of a similar jam. I disabled the port forward and instead put on two firewall rule for LAN as follows:

Rule 1:
ALLOW
Source: [Google_devices] -- this is an alias set up with all IP for my google devices
Source Port: *
Destination: !Lan address
Destination Port: 53 (DNS)

Rule 2:
REJECT
Source: *
Source Port: *
Destination: !Lan address
Destination Port: 53 (DNS)

[thogru]

Hi motamedn,

Thanks for posting your solution.

Marking a thread as solved should be done in the first post of the thread. So your mark is displayed in the overview  :)

Kind Regards,
Thomas

[motamedn]

Thanks Thomas. Does that look better?

[thogru]

Well done  :)

[ChrisChros]

OK this is fixed. I had followed instructions to port-forward traffic to port 53 on opnsense to run mimugmail's adguard home. My instructions follow to help anyone else out of a similar jam. I disabled the port forward and instead put on two firewall rule for LAN as follows:

Rule 1:
ALLOW
Source: [Google_devices] -- this is an alias set up with all IP for my google devices
Source Port: *
Destination: !Lan address
Destination Port: 53 (DNS)

Rule 2:
REJECT
Source: *
Source Port: *
Destination: !Lan address
Destination Port: 53 (DNS)

I was also able to observe a similar behavior. I force every DNS traffic to AdGuard and then further to unbound. Therefor I use portforwarding and NAT outbound rules.

My 2 Chromecast's and 1 google home mini were still working as normal. Only with my google nest mini device was not able to connect to the inet. At the end I sold my Nest device and bought a used old google home mini.