N66U: Problem with minDLNA

[cklm]

Hi,

I'm using the Asus DSL-N66U with the Asus-Firmware 1.0.7.0.

I attached a 1TB USB-HDD to the router, installed the Mediaserver and everything seems fine.
I can watch videos over DLNA, but not for long. The DLNA closes the connection (about every 30 minutes) - I can reconnect immediately but the Library is rebuilding and my folders appear slowly.
I read, that NTFS is a problem, so I formated the HDD to Ext3 and copied my data back.

The logfiles show the following - the disconnect happend around 16:02...

minidlna.log:

[2014/03/23 15:46:38] upnphttp.c:1424: warn: DSL-N66U
[2014/03/23 16:02:28] minidlna.c:1172: warn: Starting MiniDLNA version 1.1.0.
[2014/03/23 16:02:28] minidlna.c:386: warn: Creating new database at /tmp/mnt/sda1/asusware.big/var/minidlna/files.db
[2014/03/23 16:02:28] scanner.c:721: warn: Scanning /tmp/mnt/sda1/daten
[2014/03/23 16:02:28] minidlna.c:1216: warn: HTTP listening on port 8200
[2014/03/23 16:02:31] upnphttp.c:1424: warn: DSL-N66U

Systemlog:

2014-03-23 15:35:39 [Informational] login[647]: root login  on `pts/0' 
2014-03-23 16:02:23 [Informational] kernel: firewall_execute begin
2014-03-23 16:02:24 [Informational] kernel: firewall_execute end
2014-03-23 16:02:25 [Notice] ddns update: ez-ipupdate: starting... 
2014-03-23 16:02:26 [Debug] kernel: nas10: del 01:00:5e:00:00:fb mcast address from master interface
2014-03-23 16:02:26 [Notice] ddns update: connected to ns1.asuscomm.com (103.10.4.108) on port 80. 
2014-03-23 16:02:27 [Notice] ddns update: asusddns_update: 0 
2014-03-23 16:02:27 [Informational] ddns: ddns update ok
2014-03-23 16:02:27 [Debug] kernel: nas10: add 01:00:5e:00:00:fb mcast address to master interface
2014-03-23 16:03:28 [Informational] login[9790]: root login  on `pts/0'

So it seems, that "firewall_execute begin" (or something related to that) shuts down the miniDLNA (which restarts and rebuilds the library). What means "firewall_execute begin" and why appears it periodicaly?
What can I do to watch a movie longer that 30 minutes?

Thanks, Chris

// Edit:
Same problem with firmware 1.0.6.7...

 

[cklm]

Additional information:
We are using the same router in our office (Firmware 1.0.6.7) - there are no entries like this:

[Informational] kernel: firewall_execute begin
[Informational] kernel: firewall_execute end

The main difference between the routers is, that the one in the office is connected with DSL - the one at home with the problem is connect via the fast-wan-port to a cable-modem.

Any ideas?

 

[TeHashX]

Can you try this version please?
http://forums.smallnetbuilder.com/showthread.php?p=110071#post110071

 

[cklm]

@TeHashX: Thank you for the tipp - haven't tried it yet.

I found the cause of my problem. My internet provider (Kabel Deutschland, Germany) is using DHCP with a leasetime of 1800 seconds = 30 minutes. Every 30 minutes my IP is extended - my IP stays, but the N66U reloads the firewall (and restarts the miniDLNA). When I take my DHCP-IP and set this as a static-ip my problem is gone. But I'm sure, that will conflict in the net of the ISP.
I'm not sure what the solution could be - my ISP "Kabel Deutschland" won't raise the leasetime as I read in other forums...