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[tramvon]

 Hi!

 I try to write the UPNP Control Point software and I try to subscrive for events on DIR-655.
Subscription works fine, but subscription renewal fails with HTTP 412 code -  Precondition Failed, bad SID.
 My Control Point software work fine with any other UPNP devices in my network work, including D-Link DI-624.

The HTTP messages (captired by wireshark):

Subscription:

SUBSCRIBE /l3fw HTTP/1.0
Host: 192.168.0.1
CALLBACK: <http://192.168.0.100:7169/evt/43E47718-E7F6-D950-A503-71346C1D9944>
NT: upnp:event
TIMEOUT: Second-60

HTTP/1.1 200 OK
SID: uuid:5B68F900-2863-104D-8000-002401F35BC2
TIMEOUT: Second-60
SERVER: ipOS/7.6 UPnP/1.0 ipGENADevice/1.0


Renewal (50 seconds later):

SUBSCRIBE /l3fw HTTP/1.0
Host: 192.168.0.1
SID: uuid:5B68F900-2863-104D-8000-002401F35BC2
TIMEOUT: Second-60

HTTP/1.1 412 Precondition Failed, bad SID
SERVER: ipOS/7.6 UPnP/1.0 ipGENADevice/1.0

Also I tried to use HTTP/1.1 in subscription requests (and add "Connection:close" header), but there is no effect.

What I'm doing wrong?

[FurryNutz]

Link>Welcome!

• What Hardware version is your router? Look at sticker under router.
• Link>What Firmware version is currently loaded? Found on the routers web page under status.
• What region are you located?

[tramvon]

H/W: A4
F/W: 1.34WW / 1.37WW - problem still exist
Russia

[tramvon]

I've download DIR-655_GPL_code_revb.rar but at this moment I can't find the part of source code for UPNP/GENA when I investigate that source codes to find answers for errors (my or d-link errors).

[tramvon]

When I try to renew subscription immediately after subscribe, it works. Wait 750ms and renew - works. Wait 900ms and renew - fails with HTTP 412. It seems that there is a bugs in D-Link equipment (another D-Link router DI-624 works in the same manner). Intel device validator (https://software.intel.com/en-us/articles/intel-tools-for-upnp-technologies) validates DIR-655 and DI-624 eventing without errors, but, I think, there is no pause between subscribing and renewal steps. So, I think, UPNP eventing is not a reliable mechanism and it is better don't to use it.

Such device behavior compromises an upnp eventing mechanism idea.

[FurryNutz]

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. We find that phone contact has better immediate results over using email.
Let us know how it goes please.