Can't reach RB2011 via dyndns - other two are reachable

Hello

So after I bought first RB2011 - I bought another one and another one :wink:

First RB2011 is in my home - reachable from outside via “https://a.dyndns.org:port”

Second RB2011 is @ 1st work - reachable from home via “https://b.dyndns.org:port”

Third RB2011 is @ 2nd work - NOT reachable from home via “https://c.dyndns.org:port” but reachable from any other network (3G, hotspots, friends house etc) via “https://c.dyndns.org:port”.

When I want to reach third RB2011 from home - I get only security prompt from Firefox about SSL certificate (which is normal) - but after I hit OK - site is not loading but "but reachable from any other network (3G, hotspots, friends house etc) via “https://c.dyndns.org:port”.

All three RBs 2011 have the same firewall configuration, all three has the same DNS’s. All three are on 6.17 software and 3.18 firmware.

Can you help me t troubleshoot this issue?

you not provide any relevant data than not function by home.

One more thing - I can normally connect from home to third RB2011 via L2TP/IPSec.

rextended - what information do you need?

Assuming you do not have any firewall or antivirus activated on wanted device.

Check the DNS on pc @home, or the file “hosts” or if you put any static dns entry on home board.

The “/export compact” of the boards.

EDIT: PROBLEM IS SOLVED

I reinstalled Eset Smart Security. Everything is working normal now.

I swear to God, I was trying to access the website dozen time from my laptop, wife laptop, smartphone etc - no luck.

Meh - thank you for tips dear friend.

=============================

In attachment you can find files you’ve requested. I edited some vital info like passwords and IPs (last octets).

I forgot to mention one thing.

On third RB2011 - the one from the 2nd workplace I can’t reach via web - I restored backup file from second RB2011 - the one from 1st workplace. After restore I started to adjust the configuration to meet requirements from 2nd workplace. It was quicker than setting up everything from scratch. I know now It was not a good idea - I restored also interfaces MAC’s for example.

Like I said, weird thing is, when I’m at home - I can’t reach third RB2011 from my laptop, friends laptop, phone etc - all connected to my home RB2011 router.

But I can normally login to third RB2011 via web from any other network.

EDIT:

I do have one static entry in hosts:

192.168.1.1 SERWER

I do use software firewall (Eset Smart Security) - but even I disable it - I still can’t connect.