After a little digging, I found this about his ISP… http://mobinnet.ir/en
In the “About US” section, they state that they are the “largest nationwide broadband (4G WiMAX) operator in Iran …upgrade… to TD-LTE in accordance with global trends in 3GPP LTE standards”…
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So, doesn’t this mean that they work with a 3G/4G WiFi connection…which was what you had asked before?
Your ISP is Mobinnet, and as the summary says, Mobinnet is a national wireless broadband (4G-WiMAX), which you confused it with ADSL.
BitTorrent ports cannot be forwarded on 3G/4G networks.
Next time, consider providing us positive information.
As I had clearly mentioned in my opening post I’m using bitcomet for about a year and I didn’t have any problems with port forwarding since 2 days ago so I don’t think it’s my ISP problem.
Your ISP is Mobinnet, and as the summary says, Mobinnet is a national wireless broadband (4G-WiMAX), which you confused it with ADSL.
BitTorrent ports cannot be forwarded on 3G/4G networks.
Next time, consider providing us positive information.
There is no other option left.
Besides that, ports can’t be forwarded on 4G networks. Or maybe your ISP allowed you at some point, and two days ago it changed its Policy.
Ok. Thank you so much . 
There is no other option left.
Besides that, ports can’t be forwarded on 4G networks. Or maybe your ISP allowed you at some point, and two days ago it changed its Policy.
You’re welcome, as usual