Good news everyone !

One more time, FOG was not faulty but the NETWORK …
After checking again Forums on multicasting and similar problems, I’ve found the solution :

The querier switch must have an IP adress on the subnet …

Once I’ve made the change, I tested a 4 client multicast session : total success !
So I tried with a classroom of 19 clients : in 30 min ( 1.5Gbps/min, max speed with 100Mbits connections ), all images were downloaded !

So, maybe it would be interesting for others to include these advices in the wiki or the troubleshooting Multicast page :

1. enable IGMP snooping on VLAN concerned in all switches

Choose 1 "master switch ( for me the all gigabit one under fogserver ) and make the following only for this one :

2. assign an IP adress to the VLAN in the switch configuration in the subnet range
3. enable IGMP query on the VLAN
4. verify the switch has Active Group Addresses
5. Enjoy !!!

Thanks again at all the FOG team

@Sebastian-Roth You’re welcome …
For info, my switches are HP Procurve and I used these links to configure them !

https://community.spiceworks.com/how_to/26481-enable-igmp-on-hp-procurve

http://whp-hou9.cold.extweb.hp.com/pub/networking/software/AdvTraff-Oct2005-59908853-Chap04-IGMP.pdf

Now, Multicast is working properly : I imaged 3 clients at 1.4 Gb/min, next I will try 10 or more !

FOG 1.2.0 on Debian
Lycée Guillaume Apollinaire, Thiais, Paris Area, France
~500 Desktops PC Windows 7
Discovered and installed FOG in 2014
We’re teachers in a public college grade organization, and in charge of the local network for teachers and students. FOG really saves a lot of time for us for deploying and maintaining computers. At this time, we have a single master W7 image made on VirtualBox with all the software needed. As we have a lot of different hardware, we include in the image all the drivers and then sysprep.
We use FOG’s ability to rename PCs and join to our domain and run a script with DPinst to install drivers and activate Windows’s MAK.
The amazing point is that all we have to do is click on download from any web browser, and when we come to see the machines, they’re ready to use !!!
So, thanks a lot to the founders and developers.

Hi, feedback on my issue : it was ( as usual ) a network cause.
IGMP was enable on switches but no switch was querier and no multicast group has been set.

Now , the 1 client test is ok, I can go further and make it works !
Thanks for support.

Good news everyone !

One more time, FOG was not faulty but the NETWORK …
After checking again Forums on multicasting and similar problems, I’ve found the solution :

The querier switch must have an IP adress on the subnet …

Once I’ve made the change, I tested a 4 client multicast session : total success !
So I tried with a classroom of 19 clients : in 30 min ( 1.5Gbps/min, max speed with 100Mbits connections ), all images were downloaded !

So, maybe it would be interesting for others to include these advices in the wiki or the troubleshooting Multicast page :

1. enable IGMP snooping on VLAN concerned in all switches

Choose 1 "master switch ( for me the all gigabit one under fogserver ) and make the following only for this one :

2. assign an IP adress to the VLAN in the switch configuration in the subnet range
3. enable IGMP query on the VLAN
4. verify the switch has Active Group Addresses
5. Enjoy !!!

Thanks again at all the FOG team

Thank you Tom, where can I find the other multicast log ?

Server

• FOG Version: 1.4.1
• OS: Debian 8

Client

• Service Version:
• OS:

Description

So, after make my network works, I face a new problem …
I create a Multicast task, it starts on all clients, but after a few minutes, the imaging process stops !
As you see in the multicast.log, the task ends itself :

[05-31-17 10:39:10 pm] * No tasks found!
[05-31-17 10:39:00 pm] * No tasks found!
[05-31-17 10:38:50 pm] * No tasks found!
[05-31-17 10:38:40 pm] * No tasks found!
[05-31-17 10:38:30 pm] | Task (2) Multi-Cast Task has been completed.
[05-31-17 10:38:30 pm] | Task (2) Multi-Cast Task is no longer running.
[05-31-17 10:38:20 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:38:10 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:38:00 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:37:50 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:37:40 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:37:30 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:37:20 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:37:10 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:37:00 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
............
[05-31-17 10:30:20 pm] | Task (2) Multi-Cast Task is already running with pid: 21947.
[05-31-17 10:30:10 pm] | Task (2) Multi-Cast Task has started!
[05-31-17 10:30:10 pm] | Command: /usr/local/sbin/udp-sender --interface eth0 --min-receivers 1 --max-wait 240 --portbase 53350 --full-duplex --ttl 32 --nokbd --nopointopoint --file /images/W7/d1p1.img;/usr/local/sbin/udp-sender --interface eth0 --min-receivers 1 --max-wait 10 --portbase 53350 --full-duplex --ttl 32 --nokbd --nopointopoint --file /images/W7/d1p2.img;
[05-31-17 10:30:10 pm] | Task (2) Multi-Cast Task sending on base port: 53350.
[05-31-17 10:30:10 pm] | Task (2) Multi-Cast Task 1 client found.
[05-31-17 10:30:10 pm] | Task (2) /images/W7 image file found.
[05-31-17 10:30:10 pm] | Task (2) Multi-Cast Task is new!

And clients hang in imaging process …

This issue appears at each time, with 3 or just one client …

Well, after upgrading tonight to 1.4.1, I can now save the changes in FOG settings …
I think this topic can be marked “solved” …

@Sebastian-Roth You’re welcome …
For info, my switches are HP Procurve and I used these links to configure them !

https://community.spiceworks.com/how_to/26481-enable-igmp-on-hp-procurve

http://whp-hou9.cold.extweb.hp.com/pub/networking/software/AdvTraff-Oct2005-59908853-Chap04-IGMP.pdf

Now, Multicast is working properly : I imaged 3 clients at 1.4 Gb/min, next I will try 10 or more !

I tried to change directly in DB : for example :

update globalSettings set settingValue='1' where settingKey='FOG_INACTIVITY_TIMEOUT';
exit;

and it works !

But still not with the webGUI

@Sebastian-Roth No, they’re exactly the same…

Indeed, the apache logs weren’t displayed in my fog web gui til these days …

Sadly, no error related to FOG in apache error.log …
I also checked the mysql DB with

mysqlcheck -r fog

Everything is OK …

Server

• FOG Version: 1.4
• OS: Debian 8

Client

• Service Version:
• OS:

Description

Hi, I’ve got a very annoying issue. As I tried to make multicast works, I’ve changed some parameters in FOG settings. But now, I can’t save any of the changes in fields, in any section. The page takes time to actualize, the pop up “Settings Successfully stored!” appears but no change is saved !
In other sections, like host editing, changes are OK.
I don’t think there’s a “lock” function, so it maybe an apache problem ?
I’ve run again the 1.4.0 installer and rebooted, no success …
.
I guess it’s an apache problem

Hi, feedback on my issue : it was ( as usual ) a network cause.
IGMP was enable on switches but no switch was querier and no multicast group has been set.

Now , the 1 client test is ok, I can go further and make it works !
Thanks for support.