After the recent update of M5s firmware to 1.25.42741.87953554 it does not disappear from the Google Home app and always appear "online" in that app. M5 still have the Chromecast version 1.28.102057 . In Google Home app has problems displaying what M5 is playing when you click on the speaker icon. If you click the media icon it shows whats playing but you cannot add other speakers (newer CC version required).

My A6 (that has no updated firmware) constantly disappear from the Google Home app. Only workaround is to power cycle but it A6 disappear after some time.

Hiort wrote:

After the recent update of M5s firmware to 1.25.42741.87953554 it does not disappear from the Google Home app and always appear "online" in that app. M5 still have the Chromecast version 1.28.102057 . In Google Home app has problems displaying what M5 is playing when you click on the speaker icon. If you click the media icon it shows whats playing but you cannot add other speakers (newer CC version required).

My A6 (that has no updated firmware) constantly disappear from the Google Home app. Only workaround is to power cycle but it A6 disappear after some time.

Ulrike wrote:

Just an idea to rule out other possible causes:
You could try to change the DNS servers in your router settings. Usually found under Network Settings =》DHCP
If you use the DNS servers of your internet service provider, it is possible that their DNS servers are overloaded at times, especially in the evenings during peak hours. Doesn't happen that rarely.
You could try
8.8.8.8 (Google DNS)
And as a second, substitute in case of overload
1.1.1.1 (Cloudflare DNS)
Maybe it helps?

Thx, that is indeed a good suggestion! Just changed it, and let's see what happens end of day here :)

BTW, does it need DNS continuously when playing already via GC? I would assume it needs to DNS it only once, and then caches the correct ip address of the GC server until the next reboot?

No expert here :) and as far as I found - if your DNS server has the domain name and IP address in its database, it resolves the name itself.
If it doesn't have the domain name and IP address in its database, it contacts another DNS server on the internet. It may have to do this multiple times.
If it has to contact another DNS server, it caches the lookup results for a limited time so it can quickly resolve subsequent requests to the same domain name.
If it has no luck finding the domain name after a reasonable search, it returns an error indicating that the name is invalid or doesn't exist.
The last one perhaps could be the cause also of the firmware problem, namely the way Google server accessibility has been implemented in the FW. But I am only a layman in this field.

But at least I know from experience that you have to reboot your router for any changes to take effect :))

Ok, yesterday it did work all day, but today at 18:04 (CET) it stopped working again (despite the new DNS servers in my router). At 19:30 it worked for a few minutes, but now (19:42) it stopped working again. 

Totally unpredictable behaviour.........I give up and enjoy my Harman Kardon (Citation Towers, great speakers by the way!).

Same experience this evening.

Looking at the log for Critical Events on my B&M M5  i can read several "Authentication server unreachable, stopping Google Cast". Seem slike a serer issue mor than a DNS-problem.

Same experience this evening.

Im surprised you managed to update your firmware for the M5. I dont know if its just me, but I seem to be stuck on 1.24.41628.167401182 according to beotool. It says it is up to date as well, so I cant manually further update it. Chromecast version is missing on the B&O app.

coachsharter wrote:

Im surprised you managed to update your firmware for the M5. I dont know if its just me, but I seem to be stuck on 1.24.41628.167401182 according to beotool. It says it is up to date as well, so I cant manually further update it. Chromecast version is missing on the B&O app.

Agree that a B&O own nl protocol should have been there on release,  but it is official that NL will be added in Q2 for beound level and beosound balance, tunein is being released by B&O radio, so you'll have All you need this year, if you can wait (ALL streaming devices from Any company has software issues and awaiting fixes)  

Regards 

Ol