Management interfaces "out of order"

[danilo]

Hello,

I have a quite strange problem ... in my company we have a NS 25 in our main ced and 3 NS 5GT in other small company locations. All the location are connected via VPN and this is working fine.

The problem is that: starting from 3 days ago every night at different times all the 5GT devices "looses" the WebUI and the ssh daemon ... so we cannot connect to them. The TCP ports 22, 80 and 443 are inexplicably "closed". The VPN and the internet access handled by the 5 GT devices continue to work fine...

Obviously: in the external syslog server there are no strange events, the monitoring machine that use SNMP is still able to read the device informations (memory, cpu, bandwidth and so on), in the external SNMP trap manager there are no strange events ...

All the stuff has the firmware version 5.2.0r3.0 (Firewall+VPN).

Some one has any idea?

Thank in advance

Danilo

[Fahad_khan]

Does how you get the UI back? on the restart?????

well, 

Follow these steps,

1- Check you FW must not be running short of memory.

2- You must have the OS version recommended on juniper portal 

best regards,

[Naeem]

@ fahad

abay dhakan lagta hai zayda shook hai type karna ka .........

[Naeem]

danilo

There is no particular symptoms showing ur snmp your all vpn and devies are running smothly reboot devices may be your problem resolve

Regards

Naeem

[Arkus]

Hi Danilo,

 There are some known issues that could match what you describe. The best option is to upgrade the software to the latest releases. You're running quite old software. Migrating to the latest 'r' release of 5.4 is your best option.

If the problem persists, you will need to run some debugs on the 5gt, but with the assistance of JTAC.

Regards,

A.

[danilo]

Thank for your suggestion, the memory used by the device is about the 50% of the available one, and after a restart (plugging out the poower cord) the device work fine ... at least until the next night ...

I will check if I can update the firmware.

Regards

Danilo

[Fahad_khan]

Dear Naeem,

Nice to meet you, well who are you...??

regards,