The time before the first characters on the screen are shown is 3 sec.
The statistics for www.google.com are: round-trip min/avg/max = 40.776/42.024/43.792 ms
The statistics for www.microsoft.com are: round-trip min/avg/max = 33.324/234.727/1035.533 ms
The statistics for www.apple.com are: round-trip min/avg/max = 33.457/36.274/39.054 ms
Further more I have looked if I could change the DNS address of the IP modem, that is not possible because my IP provider secures this. He is the owner of the modem and I rent it from him so certain area are forbidden for me.
Also I can’t change the DNS address by my router.
When I do the ping test on another RaspberryPi3 Wheezy with WLan connection then I get results below:
The statistics for www.google.com are: round-trip min/avg/max = 56.523/58.662/61.197 ms
The statistics for www.microsoft.com are: round-trip min/avg/max = 32.289/34.529/35.377 ms
The statistics for www.apple.com are: round-trip min/avg/max = 33.498/36.516/38.553 ms
I changed the primary DNS server in OSMC in 8.8.8.8 as you recommended.
The respons time over SSH, ping www.google.com, is now 5.43 seconds.
I changed the primary DNS server in OSMC back in 10.0.0.138 the IP modem
The respons time over SSH, ping www.google.com, is now 5.48 seconds.
Not really a great difference.
As mentioned before pinging to the same adres, www.google.com, on my Wheezy machine also with a WLan connection gives a respons time below 1 sec on the same network.
The times that I give in my last reply are in seconds, that is the time after I press the enter key and the first charachters are printed on the screen.
I made log files from my old configuration, RPi1 B+, Wlan over WiPi, OSMC 16.1 with a working synchronizing clock. For logfiles see, http://paste.osmc.io/yaluzixuki
When using my RPi3 Wlan configuration I type the command ‘sudo dpkg-reconfigure ntp’ over ssh. Then OSMC replays with an error message ‘update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults’. Is there another way for testing purposes to force OSMC to sync the clock and in that way investigate further more the problem.
Problems with syncing the clock is just a symptom your problem is your DNS response time. So I suggest to start with investigating that.
Install some dnsutils with sudo apt-get install dnsutils
Then run time dig www.google.com
FYI here are my results, as you can see such a request should only take 0m0.094s (9.4 milliseconds)
osmc@osmc:~$ time dig www.google.com
; <<>> DiG 9.9.5-9+deb8u6-Debian <<>> www.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61133
;; flags: qr rd ra; QUERY: 1, ANSWER: 16, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1280
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 186 IN A 58.176.217.103
www.google.com. 186 IN A 58.176.217.93
www.google.com. 186 IN A 58.176.217.99
www.google.com. 186 IN A 58.176.217.84
www.google.com. 186 IN A 58.176.217.94
www.google.com. 186 IN A 58.176.217.109
www.google.com. 186 IN A 58.176.217.98
www.google.com. 186 IN A 58.176.217.88
www.google.com. 186 IN A 58.176.217.89
www.google.com. 186 IN A 58.176.217.113
www.google.com. 186 IN A 58.176.217.114
www.google.com. 186 IN A 58.176.217.108
www.google.com. 186 IN A 58.176.217.119
www.google.com. 186 IN A 58.176.217.118
www.google.com. 186 IN A 58.176.217.104
www.google.com. 186 IN A 58.176.217.123
;; Query time: 2 msec
;; SERVER: 192.168.147.2#53(192.168.147.2)
;; WHEN: Sun Jul 10 16:21:08 HKT 2016
;; MSG SIZE rcvd: 299
real 0m0.094s
user 0m0.040s
sys 0m0.030s
Ok this are the results from my local DNS server, but even if using an external DNS server I am far below 1s
osmc@osmc:~$ time dig @8.8.8.8 www.google.com
; <<>> DiG 9.9.5-9+deb8u6-Debian <<>> @8.8.8.8 www.google.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15471
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 299 IN A 216.58.197.100
;; Query time: 23 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Jul 10 16:29:35 HKT 2016
;; MSG SIZE rcvd: 59
real 0m0.118s
user 0m0.030s
sys 0m0.040s
In my router and Modem I can’t see any QoS settings, so I think they aren’t used.
I bought a powersupple 5V 2.5A for the RP3 and used that but I get colored squire rectangle on the screen.
I replaced the powersupple for a 5V 2.0A and the colored squire rectangle disappeared.
So I think there is power problem.
Do you have sofware with which I could experiment at the place where you think it went wrong.
Maybe I can search for the correct time delay to wait for?
Are there more systems that use a build in WLan interface just as by the RPi3.
Maybe it is specificly bounded to the RPi3.
Have you tried using MyOSMC to set a static IP address and your other network particulars while also setting DNS servers to 8.8.8.8 and 8.8.4.4 then rebooting and testing for function?
All the IP addresses are given on MAC address. So they should be static.
I have tested all the combinations that are possible with my modem DNS address, router DNS address and 8.8.8.8 and 8.8.4.4.
The results are the table below.
My default DNS setup is position 9.
Would you be so kind and check the logfile’s if they still reporting some errors in conjunction with the sync problem.
I have some questions that could be answer if you can and will.
1). What can I do to prevent that my router give it’s DNS address to the Wifi adapter as second DNS address.
2). Can I remove the second DNS address from the DNS list.
3). When will the first DNS and when the second DNS address be used.
4). What settings position from the table above would you advice.
When I look at the table than I can see that when the secondary DNS server is 192.168.123.254 the synchronization of the clock does not work. The secondary DNS address should only be used if the primairy DNS server is not accessible. Or am I wrong?
