Hi Rick
Here are my 2c worth. (I hope you have not been using any ethernet hub
between the workstation and the CCU/11 i.e. it is a direct connection i.e.
so-called 'eth1' connection). Other than that using a router or hub to
connect to the internet (so-called 'eth0' in old parlance) doesn't have
any bearing on the PC to CCU/11 connectivity.
- You can use 'wireshark', which is a open source packet sniffer, to
look at the TCP/IP communication packets between the two ends. This will
help to see till what stage the diskless download and bootup proceeds.
- If it was all working OK before, what changed now ? Was it a
software upgrade i.e. OS or other ? Can you fall back to the older version
and try ?
- I can speak mostly for Linux systems and can you check if 'bootparamd'
is running on your workstation when you try to boot up the CCU/11 ?
- Not that the following will change spontaneously, but, can you make
sure that the NFS v2 is active on your workstation ?
The wireshark dump will give a definitive foot print of how far you are
able to proceed.
Good Luck and Best Regards
Rajan
On Tue, Jun 10, 2025 at 9:02 AM Richard Fitch via groups.io wrote:
> Dear Spinlanders,
>
> We recently had our Avance II 400 lose communication with our
> workstation. On power up, we get a few LINK and STATUS LEDs on the CCU
> flashing but then nothing, leaving the first and second STATUS LEDs lit and
> the second LED on the LINK lit. Resetting the CCU gives no changes except
> on the STATUS which settles into the same first and second LEDs lit. The
> LEDs on the workstation ethernet port are green and amber/yellow and
> static, so we have power and connection but no communication.
>
> Does anyone know the normal sequence of LEDs that should light up for both
> the LINK and STATUS LEDs? Is there a reference for the indicators?
>
> We have so far swapped the CCU and PSM2 as well as bypassed the router
> plugged in directly to the workstation.
>
> Any assistance would be greatly appreciated.
>
> All the best,
>
> Rick
>
> Richard W. Fitch
> Professor, Department of Chemistry and Physics
>
> Councilor, Wabash Valley Section, American Chemical Society
> Indiana State University
> 600 Chestnut Street
> Science Building, Rm. S35E
> Terre Haute, IN 47809
> Phone: (812) 237-2244
> Fax: (812) 237-2232
>
> “Do an apparently simple experiment that gives you an important bit of
> information...”
> Julius Axelrod
>
> The love of money is the root of some evil. Fear and insecurity are the
> root of most of it.
>
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