Re: Oracle SQLNET through DSL connection

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As you know, debugging network problems can be a hit-or-miss thing. Since you have sort of narrowed it down to a client issue, here are a few more things to check (not to say any of them will help):

1. Open an MS-DOS window and type 'set' to see the environment variables defined on each laptop. Look for differences in the PATH or DOMAIN. You didn't specify the O/S on your laptops, but on my Win2k PC, I have a USERDOMAIN and a USERDNSDOMAIN. If you have these, are they what you expect?
2. Are you configured to use a different DNS on your DSL connection? If so, point to the DNS that works.
3. Check the 'hosts' file on both laptops. Under Win2k, you find it at c:\winnt\system32\drivers\etc. While there, compare the other network config files (eg, lmhosts). Sometimes people alter these to satisfy another network problem and forget they've done it (for example, my office was on a different subnet for a while and I had to change my hosts file ... since they didn't want to change the company DNS just for me).

Like I said, none of these may help ... but they're some of the things I've had to track down.

One last note: I don't think the 'unable to open transport' is the error. I think your errors started a few lines earlier in your trace file ... at the 'ntt2err: soc 284 error' line, since that's where you got the first TNS-00505 timeout (ntresnt[0]=505). But I don't claim to be an expert reader of trace files! Received on Mon Nov 04 2002 - 11:35:10 CST