IPlayer no longer loading / playing

Question

Two weeks ago my iPlayer connection from the Goodmans set-top box suddenly decided not to 'play'. I went through the usual sequence of a power off/on reset of the TV, set-top box, HomePlug adapter, BT HomeHub router
All other connections in the house, both wired and wireless work OK
Connected to the set-top box and loaded the iPlayer option, chose a film to view, it went off to say loading but hung
Gave it a day or so and tried again no joy
(Couldn't have anything to do with the BT router could it? - everything else was working as before)
So process of elimination started ................
1. Replaced Goodmans set-top box (3 years old) with Humax 'Smart' Freesat box - extravagent but justified as it turns my TV into a 'Smart' TV. Connected up the new box, verified an IP address via DHCP, clicked on iPlayer, picked a programme to download, response - loading .........................................................................................
2. So not the set-top boxes giving problem
3. Swapped HomePlug unit with another on which I knew was working e.g. passing packets including a video stream from an IP camera - no joy
4. Plugged my laptop into the HomePlug adapter and ran iPlayer application from the BBC web site - chose a film to download to watch - perfect reception, no problem with it running over the network from the laptop
5. I decided to eliminate the HomePlug connection by plugging in a Cat5 cable directly from the 'new' set-top box directly into a lan port on the BT router - messy but last option of elimination process
6. Ran up iPlayer, via the TV and 'new' Smart set-top box, chose a film to watch, loading .................................
7. Must be the high performance, state-of-the-art, BT router. Ran diagnostic checks, all looked OK. The Humax set-top box was there along with a PC, laptop, IP camera and various mobile phones. I did notice that a couple of times the Humax set-top box disappeared off the network plan while the PC (both connected on the HomePlug network) stayed on consistently
8. Last resort (should have done it in the first place) - check the firewall
9. Guess what, the BT router's firewall has decided 'out of the blue' to block any packets relating to iPlayer or ITV player
"15:04:27, 26 Dec 
OUT: BLOCK [9] Packet invalid in connection (TCP 192.168.0.4:42854-​>83.222.237.181:443 on ppp1)"
10. It doesn't block packets from my laptop that I plug in to the HomePlug adapter port so why is it blocking the request packets from the set-top box?
11. So thats two set-top boxes from different manufacturers that it rejects

Answer 1

Same as me!
 Goodmans freesat box, bt Homehub 5.  
Thanks bt. No iplayer over Christmas, and still not working.
Not to mention the 2 hours of my valuable time trying to find the cause.
No replies apart from this one.......
WELL DONE BT!!!!!