I have another thread on this issue but it seems no one is active on that thread so starting a new one.
Old thread and more details here: DBD::Sybase query execute hangs randomly for Sybase IQ 15.4

I enabled DBI Tracing in my script and here's the error message I got in the trace file. I was lucky enough that the issue occurred shortly after I added the tracing code in my code. From the error message I believe that this is related to the network configuration on my Unix machine (IBM AIX).

Any ideas on how to go about fixing this? 

-> FETCH for DBD::Sybase::db (DBI::db=HASH(0x30844064)~INNER 'Driver')
+ ERROR: 50 'OpenClient message: LAYER = (4) ORIGIN = (1) SEVERITY = (
+5) NUMBER = (28) 
Server bhedw_dev, database Message String: ct_results(): protocol spec
+ific layer: external error: There is a tds protocol error. An illegal
+ token was received. OpenClient message: 
LAYER = (1) ORIGIN = (1) SEVERITY = (1) NUMBER = (50) Server bhedw_dev
+, database Message String: ct_cmd_drop(): user api layer: external er
+ror: The connection has been marked dead.

[download]

In reply to OpenClient error with Perl DBI Sybase IQ by cmahajan

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.