Failed to connect, retrying in 5.0s

[czar]

Trying to run mkchromecast on Linux Mint 20, but this is what happens. I run, i open pavucontrol, and pipe the music to the mkchromecast sink, but no sound comes out... Here is what it says in the terminal.

$ mkchromecast
Mkchromecast v0.3.8.1
Creating Pulseaudio Sink...
Open Pavucontrol and Select the Mkchromecast Sink.
Starting Local Streaming Server
[Done]
Selected backend: parec
Selected audio codec: mp3
Default bitrate used: 192k
Default sample rate used: 44100Hz.
 * Serving Flask app "mkchromecast.audio" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
PID of main process: 50584
PID of streaming process: 50592
 
List of Devices Available in Network:
-------------------------------------

Index   Types   Friendly Name 
=====   =====   ============= 
0 	Gcast 	Living Room speaker
1 	Gcast 	Kitchen speaker
2 	Gcast 	all
 
Casting to first device shown above!
Select devices by using the -s flag.
 
Living Room speaker
 
[record[a,in-unique,a0b45b27-a863-8010-f953-b48393b9763a.local.]=120/119,192.168.1.11:8009] Failed to connect, retrying in 5.0s

*Edit: After searching and finding others w/ the same issue. I did this:
apt install python3-pip
then
pip3 install zeroconf==0.24.3

now it works.

[WhiteHusky]

Can affirm. I initially thought it was a firewall issue (this laptop has a strict set of ports) and opened them with no dice. After installing zeroconf==0.24.3 it was able to cast correctly.

[n6bhu]

Outa sight man -- worked for me too -- THANX for the dope on this!

[Gunstick]

So what is the difference between zeroconf 0.24.3 (works) and 0.24.4 (does not work) and what would need to be changed to mkchromecast to work with the newest version?

[WhiteHusky]

So what is the difference between zeroconf 0.24.3 (works) and 0.24.4 (does not work) and what would need to be changed to mkchromecast to work with the newest version?

diff --git a/README.rst b/README.rst
index aae1124..432d3c4 100644
--- a/README.rst
+++ b/README.rst
@@ -134,6 +134,12 @@ See examples directory for more.
 Changelog
 =========
 
+0.24.4
+------
+
+* Fixed resetting TTL in DNSRecord.reset_ttl(), thanks to Matt Saxon
+* Improved various DNS class' string representations, thanks to Jay Hogg
+
 0.24.3
 ------
 
diff --git a/zeroconf/__init__.py b/zeroconf/__init__.py
index 6c9d55d..35fac80 100644
--- a/zeroconf/__init__.py
+++ b/zeroconf/__init__.py
@@ -42,7 +42,7 @@ import ifaddr
 
 __author__ = 'Paul Scott-Murphy, William McBrine'
 __maintainer__ = 'Jakub Stasiak <jakub@stasiak.at>'
-__version__ = '0.24.3'
+__version__ = '0.24.4'
 __license__ = 'LGPL'
 
 
@@ -420,7 +420,7 @@ class DNSEntry:
             result += ","
         result += self.name
         if other is not None:
-            result += ",%s]" % cast(Any, other)
+            result += "]=%s" % cast(Any, other)
         else:
             result += "]"
         return result
@@ -502,6 +502,8 @@ class DNSRecord(DNSEntry):
         another record."""
         self.created = other.created
         self.ttl = other.ttl
+        self._expiration_time = self.get_expiration_time(100)
+        self._stale_time = self.get_expiration_time(50)
 
     def write(self, out: 'DNSOutgoing') -> None:
         """Abstract method"""
@@ -509,7 +511,7 @@ class DNSRecord(DNSEntry):
 
     def to_string(self, other: Union[bytes, str]) -> str:
         """String representation with additional information"""
-        arg = "%s/%s,%s" % (self.ttl, self.get_remaining_ttl(current_time_millis()), cast(Any, other))
+        arg = "%s/%s,%s" % (self.ttl, int(self.get_remaining_ttl(current_time_millis())), cast(Any, other))
         return DNSEntry.entry_to_string(self, "record", arg)
 
 
@@ -538,9 +540,9 @@ class DNSAddress(DNSRecord):
     def __repr__(self) -> str:
         """String representation"""
         try:
-            return str(socket.inet_ntoa(self.address))
+            return self.to_string(str(socket.inet_ntoa(self.address)))
         except Exception:  # TODO stop catching all Exceptions
-            return str(self.address)
+            return self.to_string(str(self.address))
 
 
 class DNSHinfo(DNSRecord):
@@ -580,7 +582,7 @@ class DNSHinfo(DNSRecord):
 
     def __repr__(self) -> str:
         """String representation"""
-        return self.cpu + " " + self.os
+        return self.to_string(self.cpu + " " + self.os)
 
 
 class DNSPointer(DNSRecord):
diff --git a/zeroconf/test.py b/zeroconf/test.py
index f0d5ad4..5a89c9f 100644
--- a/zeroconf/test.py
+++ b/zeroconf/test.py
@@ -79,6 +79,21 @@ class TestDunder(unittest.TestCase):
         self.assertRaises(r.AbstractMethodException, record.__eq__, record)
         self.assertRaises(r.AbstractMethodException, record.write, None)
 
+    def test_dns_record_reset_ttl(self):
+        record = r.DNSRecord('irrelevant', r._TYPE_SRV, r._CLASS_IN, r._DNS_HOST_TTL)
+        time.sleep(1)
+        record2 = r.DNSRecord('irrelevant', r._TYPE_SRV, r._CLASS_IN, r._DNS_HOST_TTL)
+        now = r.current_time_millis()
+
+        assert record.created != record2.created
+        assert record.get_remaining_ttl(now) != record2.get_remaining_ttl(now)
+
+        record.reset_ttl(record2)
+
+        assert record.ttl == record2.ttl
+        assert record.created == record2.created
+        assert record.get_remaining_ttl(now) == record2.get_remaining_ttl(now)
+
     def test_service_info_dunder(self):
         type_ = "_test-srvc-type._tcp.local."
         name = "xxxyyy"

[perj]

Affects Ubuntu 20.04 mkchromecast installed via apt, it seems.

[j2l]

Affects Ubuntu 20.04 mkchromecast installed via apt, it seems.

Yes, I arrived here because of this error on ubuntu 20.04.
Unfortunately, downgrading zeroconf didn't do the trick for me.
I can cast using vlc or chromium but not mkchromecast and I'd like to cast the desktop screen, not just video.

[dawonn]

FWIW, this fix worked for me. I had 0.24.4 installed by default on Ubuntu 20.04; rolling back to 0.24.3 and it's working perfectly. :)

[shawndooley]

@WhiteHusky

-            result += ",%s]" % cast(Any, other)
+            result += "]=%s" % cast(Any, other)

I think this is the change in that diff that caused the issue. I haven't taken the time yet to figure out exactly what this does, but if I change only that line in my local zeroconf/__init__.py I am able to cast without issue.

[martinzoller]

@WhiteHusky

-            result += ",%s]" % cast(Any, other)
+            result += "]=%s" % cast(Any, other)

I think this is the change in that diff that caused the issue. I haven't taken the time yet to figure out exactly what this does, but if I change only that line in my local zeroconf/__init__.py I am able to cast without issue.

This also did the trick for me on Ubuntu 20.04.3.