Network Slow - FG100D

[karthik]

Hi,

We are using fortigate firewall 100D, currently we are facing network slowness complain by our users. we dont know where can we check and what is the issue. all our policy has been set as any and all.

when i check the ISP speed is fine. this using internal swtich panel. public ip then private for internal users.

can any one guide me how to check and change the speed,?

[GusTech]

What is going slow? DNS lookup? download/upload speed? What is the traffic and how big is the connection ?

To check the FGT preformance, write in Cli: get system performance status

[karthik]

Hi,

We found we have only around 150 users.

example each time when i go to a bak website it appears as below screenshot. but if i refresh it few times im able to view the web. this is happening suddenly. how to do i check and where can i check the how big is the traffic and network.

[GusTech]

Cannot see the image. 

Are you using any UTM services?

[karthik]

Hi,

I have attached it.

[karthik]

Hi,

There no any UTM services, even in policy also dont have.

[karthik]

Hi,

i found this under config features.

attached is the screenshot

[GusTech]

In CLI, type: show firewall policy

[karthik]

Hi,

Please find the attached policy screenshot

[GusTech]

If you do not have any bandwith monitoring, you can add a widget (interface history) in the Dashboard-Status tab. Then you get a feeling.

1) What FortiOS are you running??

Dashboard-Status, you find a CLI console. Would recommend Putty for console.

2) And reply output of the commands i posted.

3) Try set your DNS to 8.8.8.8 and 8.8.4.4 (in your computer)

If you do not use UTM, I then guess that it can be something with DNS.

4) Try anyway ping 8.8.8.8 from FW and a client maching

FW: CLI: execute ping 8.8.8.8

Windows: cmd.exe, ping 8.8.8.8 -t (-t adds )

5) Can you plugg a computer directly in to the Fortigate, and see if the network still have these problems?

Tips policy tab:

You can put all the services in a group, it looks better.