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Author Topic: Random Connection Dropouts  (Read 10153 times)
maximus007
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« on: Thursday 06 May 2010, 07:13:28 pm »

Thanks in advance for looking at this.

I am running Endian Community 2.3 with a basic red and green interface setup. I have the following setup:
- HTTP Proxy OFF
- SMTP Proxy ON
- POP3 Proxy ON
- Intrusion Detection ON
- DHCP OFF
- FTP and HTTP antivirus OFF
- VPN OFF
- a few port forwarding rules etc.

Client is Windows 7.

I have a problem with random connection interruptions or drop outs every 4-6 minutes or so, e.g.:
- On the web, all works fine and fast, then suddenly the connection dies and nothing is accessible for a few minutes.
- Skype works for a few minutes, then suddenly drops the connection and I can't reconnect for a few minutes.
- Youtube will stream part of a video, then stop.
- uTorrent picks up speed for a while then kills the connection for a few minutes
etc.

This is obviously quite frustrating. Does anyone have any ideas how to fix this?
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mrkroket
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« Reply #1 on: Friday 07 May 2010, 05:28:54 am »

What kind of machine is your Endian Firewall?
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maximus007
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« Reply #2 on: Friday 07 May 2010, 06:55:47 am »

An old Pentium 4 2.4Ghz with 512MB RAM, 2 NICS and 20GB HDD. CPU Usage is not high.
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mrkroket
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« Reply #3 on: Saturday 08 May 2010, 07:03:39 am »

Do some ping test to check connectivity on all steps:

a) From your Computer to Endian: On your windows, execute ping <<YourFirewallIP>> -t. Also execute ping www.google.com -t
b) Connect a monitor to the firewall and from the console execute ping www.google.com.
Let it running.
If you see any strange in console, this could lead you to a possible solution.

Then, when you have a connection problem check the console output to see if Endian Firewall also loses ping replies.
Do some other tests too. From endian console, use the top to see if something is eating up too much CPU time at random intervals.

Another problem could be some hardware problem, related to incorrect NIC drivers.


How your HTTP proxy is configured?
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