RTN66U Merlin and portforwarding

[pumo]

Is there a bug or limitations with port forwardings?
I have Zyxel LTE3301 mode bridged and asus RTN66U with newest amerlin rom (380.58).
I configured dyndns which works, I configured couple tcp ports to my server 80 for web server, 222 for ssh, 143 for imap server and 12346 some application.
80 and 222 worked but not 143 and 12346. I tested and changed 143 to 1430 from imap software and then it worked from outside.
I couldnt be limitation frm my ISP because I changed Zyxel as router (without bridged mode) and opened same four ports and all worked (80, 143, 222 & 12346)

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[RMerlin]

Post a capture of your forwarded ports under System Log, this will confirm whether your ports are correctly forwarded or not.

 

[pumo]

I will take tomorrow. Those where exactly same 80 vs 143, server is also same for those ports.

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