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Mitel Forums => Mitel Software Applications => Topic started by: brogerson on March 11, 2015, 10:33:35 AM

Title: Teleworker Set losing Connection to PBX
Post by: brogerson on March 11, 2015, 10:33:35 AM

I am building an MBG in the DMZ for teleworkers, the customer tells me all the proper ports are opened up but the Set I have registered keeps losing its connection.
In the event viewer I see a SS read failed error.

Can anyone give me more info on an SS read failed error,  I can't seem find anything in Mitels documentation.

Title: Re: Teleworker Set losing Connection to PBX
Post by: dilkie on March 11, 2015, 10:37:08 AM

the details of the log will tell you which end had a connection failure. Setside, SS, socket connected to set... or Icpside, IS, socket connected to the icp. The tcp reason code may give you more hints.

as well, look at tug.log, grep for "heartbeat" and see if you are experiencing connection issues.

Title: Re: Teleworker Set losing Connection to PBX
Post by: brogerson on March 11, 2015, 10:50:39 AM

This is the error,  is (104) the TCP reason code


active-connections:0, Ip:70.48.219.47:6985, Reason:SS read failed - Connection reset.(104), Icp:10.15.30.10, ID:08:00:0F:2F:7D:46, Acceptor:SSL

Title: Re: Teleworker Set losing Connection to PBX
Post by: dilkie on March 11, 2015, 10:54:24 AM

'connection reset' means that a "bad" tcp disconnect occurred, not a graceful close.

SS read, this is the connection to the set and the failure occurred when we tried to read data from the connection.

so, either a problem between mbg and the isp, a problem between the set and their isp or a problem with the internet.

Since you're in a DMZ, with a separate f/w in front, maybe grab tcp captures on the inside and outside interfaces for mbg's ip, port 6801 and see if it's a 'real' problem of if your f/w is mucking things up (it happens, checkpoint is famous for it).