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[Brett Dunbar <1644512@xxxxxxxxxxxxxxxxxx>]

That is the first thing I considered, that there might be some problem
with the firewall rules. So I tried turning the windows firewall off
entirely so it couldn't be blocking DC++; it made no difference.


All I have done is change the version of DC++ I use. The problem is definitely with DC++. 0.851 can communicate with the uPnP on my router 0.863 can not. Whatever the problem is it was introduced with version 0.860.

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https://bugs.launchpad.net/bugs/1644512

Title:
  UPnP configuration no longer working

Status in DC++:
  New

Bug description:
  I have a BT Homehub 3 with an openreach fibre modem to connect to the
  BT infinity FTTC service. The previous version of DC++ (0.851) could
  talk to the mini MiniUPnP interface and set up an active connection.

  The system log in 0.851 is like this

  [21:23] Connectivity: Determining the best connectivity settings...
  [21:23] Connectivity: Local network with possible NAT detected, trying to map the ports...
  [21:23] Connectivity: Port mapping: Successfully created port mappings (Transfers: 15509, Encrypted transfers: 15510, Search: 51248) on the "WANDevice" device with the MiniUPnP interface
  [21:23] Connectivity: Port mapping: Failed to get external IP
  [21:25] File list <C:\Users\Brett\AppData\Roaming\DC++\files.xml.bz2> generated
  [21:26] Connectivity: Port mapping: Successfully removed port mappings from the "WANDevice" device with the MiniUPnP interface
  [21:26] Connectivity: Determining the best connectivity settings...
  [21:26] Connectivity: Local network with possible NAT detected, trying to map the ports...
  [21:26] Connectivity: Port mapping: Successfully created port mappings (Transfers: 15542, Encrypted transfers: 15543, Search: 50056) on the "WANDevice" device with the MiniUPnP interface
  [21:26] Connectivity: Port mapping: Failed to get external IP

  An active connection is successfully configured.

  The system log in 0.863 is like this

  [10:44] Connectivity (IPv4): Determining the best connectivity settings...
  [10:44] Connectivity (IPv4): Local network with possible NAT detected, trying to map the ports...
  [10:44] Connectivity (IPv6): Determining the best connectivity settings...
  [10:44] Connectivity (IPv6): All IPv6 addresses found are local; disabling connectivity
  [10:44] Connectivity (IPv4): Port mapping: Failed to initialize the MiniUPnP interface
  [10:44] Connectivity (IPv4): Port mapping: Failed to map the Transfer port (19386 TCP) with the NAT-PMP interface
  [10:44] Connectivity (IPv4): Port mapping: Failed to create port mappings
  [10:44] Connectivity (IPv4): Active mode could not be achieved; a manual configuration is recommended for better connectivity
  [10:45] File list <C:\Users\Brett\AppData\Roaming\DC++\files.xml.bz2> generated

  I get only a passive connection.

  I have been reverting to 0.851 due to this.

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