Errors over token-ring.

We provide AS/400 services to a large company.  This is the only area that
we provide service in, they take care of other areas (e.g. their network)
in-house, so I do not know how they have their network configured.  On
November 3 we replaced their old B70 running token-ring with a new 270 using
an Ethernet card and running OS/400 V4R5.  Everything seemed fine.  However,
the next Monday at about 3:00 p.m. everyone in one area started having
horrible response and then dropping.  This cleared up after about 1.5 hours.
Again, things seem to run fine, until Thursday & Friday, November 15 & 16,
when they started to have the same intermittent problems.  Here is the
interesting part: the PC's having problems with communications are using
token-ring.  A PC on an Ethernet network does not experience the problems.
When we reset TCP/IP it seems to help a little bit sometimes and doesn't
have any affect other times.  This makes me think that the problem is with
the bridging between the token-ring and Ethernet networks.  But the network
guys can't find anything wrong with the network (althought they do see
errors) and are pointing at the AS/400.

Does anyone have any ideas on this?

Chuck Morehead
Nokuse Consulting - Providing high value Information Technology Services.
Native Bear Software - Providing affordable Industry Specific Software.
http://www.nokuse.com