RE: Only one network interface of three NF CA5351 Current Amplifiers is accessible

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

Can you give some more information:

-          Have you configured these for static IP addresses or DHCP?

-          When you say “accessible” how are you defining this?  Have you tried pinging all 3 devices when only 1 is “accessible”?

-          You can get it into a state where “everything is fine”.  What do you need to do to get back to the bad state?

 

Mark

 

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Chiang, Liang-Chih [???] via Tech-talk
Sent: Monday, March 21, 2022 10:53 PM
To: tech-talk at aps.anl.gov
Subject: Only one network interface of three NF CA5351 Current Amplifiers is accessible

 

Hello,

 

I have three NF CA5351 Current Amplifiers and use Ethernet/LAN to access them remotely.

(product webpage: https://www.nfcorp.co.jp/english/pro/mi/loc/pre/ca5351/index.html  )

 

For some reason which I don't know, they would behave erroneously.

Only one of them is accessible remotely, and after several seconds, the accessible one will change.

That is,

only no. 1 is accessible,

 several seconds passed,

only no. 2 is accessible,

several seconds passed,

only no. 3 is accessible,

several seconds passed,

...repeat the above sequence...

 

I try rebooting the devices, doesn't work.

 

The solution I found is:

Unplug the network cable,

change the IP address of the device,

change the IP address back to the original setting,

plug the network cable.

 

Then everything is fine.

 

Does anyone have any idea about this bizarre behavior?

 

 

Best regards.

 

 

LiangChih Chiang

NSRRC Beamline group

email: chiang.lc at nsrrc.org.tw