Descriptive Problem Summary:
Using 1185 causes games to not show up on the hub, either reporting not reachable (even though you can login to the game) or freezing trying to connect back to DreamDaemon.

Numbered Steps to Reproduce Problem:
Install BYOND globally on a linux (Ubuntu 12.04 in my case) my client was trying to run - www.byond.com/games/DarkerEmerald/TLC

And I chose a random game

http://www.byond.com/games/Nielz/Chattie

Open the port via iptables (if needed)
Run DreamDaemon world.dmb port
Watch it either say the hub isn't reachable or just sit there doing nothing.

Thu Jun 13 01:51:28 2013
Auto-safety mode: safe (working directory access)
World opened on network port 1158.
Welcome BYOND! (4.0 Public Version 499.1185)
The BYOND hub reports that port 1158 is not reachable.

Test2
root@TWG:~# DreamDaemon Chattie.dmb 1158
Thu Jun 13 01:56:25 2013
Auto-safety mode: safe (working directory access)
World opened on network port 1158.
Welcome BYOND! (4.0 Public Version 499.1185)
(Freezes here is still responding and you can join the game)

Netstat on the port
netstat -a | egrep 'Proto|LISTEN'
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:1158 *:* LISTEN
tcp 0 0 localhost:mysql *:* LISTEN
tcp 0 0 *:www *:* LISTEN
tcp 0 0 *:ssh *:* LISTEN
tcp6 0 0 [::]:ssh [::]:* LISTEN

Expected Results:
Game reachable by hub

Actual Results:
Game not reachable by hub and not showing on hub

Does the problem occur:
Every time? Or how often?Everytime
In other games?Yes
In other user accounts?N/A
On other computers?Yes

When does the problem NOT occur?
When I install 498.1158

Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? 498.1158

Workarounds:
Install 498.1158 and it works perfect..

Confirmed broken on three boxes, fresh install of 1185 over 1158, try to run game either not reachable or freezes. revert back to 1158 and it works fine with these two games at least.

Could it be the latest hub issues? or backward compatability with these games?

If someone could point me to a game that's been compiled by the latest BYOND or at least 1185 so I can test that?