Ping times

[Kris]

Hi all,

I've noticed this before, but never could figure it out:
When the computer which runs HostMonitor is just rebooted the average PING time to other computers is about 5ms.
In time this will increase up to about 50ms in about 4 weeks time.
I can see it happen in every history chart from any PING test.
Not shure if it will increase any further because the machine has never been un-rebooted (if that's even a word LOL) for more than 4 weeks.

Is this known behaviour? Could there be something filling up that needs to be cleared every once in a while?

Config server:
2x Dual Core Xeon @ 3.2Ghz
10GB mem
2x 1GB lan (teamed)
W2K8 R2
HostMonitor 8.86 / 460 tests

Other software running on it:
BackupExec 2010 R3
Symantec SEP Manager

[KS-Soft Europe]

We had similar problem. It was connected with Windows Server 2008R2 TCP/IP Window Auto-Tuning feature.
Could you try to disable it ?
You may use Command Prompt started with Administartor privileges and command like the following:
netsh interface tcp set global autotuninglevel=disabled

[Kris]

Done.

I'll get back to you in a couple of weeks to let you know how it went

Thanks!
Kris

[Kris]

Problem solved indeed

Thanks!
Kris

[xcentric]

I had noticed the same symptoms. Ping times would ramp up for 3-4 weeks then suddenly drop off. I am happy to see this figured out.

[Kris]

I know this is an oldie, but today I noticed the aforementioned problem is back.

autotuninglevel is still disabled.

Any new knowledge on this one?

[Kris]

Guess not then eh...

[KS-Soft]

Sorry, we did not find other possible reasons for such problem.
May be some Symantec sideeffect?

If you cannot disable/uninstall Symantec, probably you can use RMA installed on different (clean) system to perform Ping tests? This is not very good idea for production monitoring because HostMonitor<->RMA traffic is more resource consuming than simple ping/ICMP packets but just for testing...

Regards
Alex