Solved

TMG "maximum connections rate for a single client host was exceeded"

Posted on 2013-02-07
8
2,628 Views
Last Modified: 2013-10-14
Hi Experts,

I got a user that have a random problem, sometimes his internet wirks fine, sometimes not..

Logging on TMG i got:

Denied Connection  2/7/2013 10:41:29 AM
Log type: Firewall service
Status: A connection was rejected because the maximum connections rate for a single client host was exceeded.  
Rule: None - see Result Code

Anyone can help me fix it?
0
Comment
Question by:DELAGIO
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 3
8 Comments
 
LVL 23

Expert Comment

by:Suliman Abu Kharroub
ID: 38864408
His/her machine could be infected, first of all scan it for malwares.

If it is clean, check this:

http://www.isaserver.org/tutorials/TMG-Firewall-Flood-Mitigation-Part1.html
0
 

Author Comment

by:DELAGIO
ID: 38864428
I already did that.

I increased max connections from 600 top 750 and this user stil have problems.
0
 
LVL 23

Accepted Solution

by:
Suliman Abu Kharroub earned 500 total points
ID: 38864461
Give it 1200 instead of 750.
0
Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

 

Author Comment

by:DELAGIO
ID: 38864467
but is it safe to set a high value like that?
0
 
LVL 23

Expert Comment

by:Suliman Abu Kharroub
ID: 38864497
Thats why I asked to scan the client mahcine first.
0
 

Author Comment

by:DELAGIO
ID: 38913537
Hi, sorry i took so long to respond.

Updated to 1200, scanned for pc virus and its all ok on the client pc, but tmg keeps rejecting its ip after some time.

What we do now?
0
 

Author Comment

by:DELAGIO
ID: 39571838
I ended putting the problematic IP address in the exclusions list.
0
 

Author Closing Comment

by:DELAGIO
ID: 39571840
ok
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A procedure for exporting installed hotfix details of remote computers using powershell
This article explains how to install and use the NTBackup utility that comes with Windows Server.
This tutorial will walk an individual through the steps necessary to configure their installation of BackupExec 2012 to use network shared disk space. Verify that the path to the shared storage is valid and that data can be written to that location:…
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…

687 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question