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Some telnet connection halts

Antoniov.
Honored Contributor

Some telnet connection halts

I'm with my customer who had very slow trouble http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=799684

Now all emulators and VT work fine but two PC have some weird trouble: suddenly connection halts and after a few seconds restarts.
Both PC have windows xp (but also other PC in network have same OS). All PCs use PowerTerm emulator of pathwork32.

Any idea?

Antonio Vigliotti
Antonio Maria Vigliotti
6 REPLIES
Ian Miller.
Honored Contributor

Re: Some telnet connection halts

are the troubled pc on the same network switch port as the the others?

Time to get the lan analyzer out?
____________________
Purely Personal Opinion
Antoniov.
Honored Contributor

Re: Some telnet connection halts

Ian,
yes, theese PCs are on same hub-swith of server alpha. But also other PC are on same hub-switch (24 ports) and work fine!

Today is wrong day for my network :-(

Antonio Vigliotti
Antonio Maria Vigliotti
Garry Fruth
Trusted Contributor

Re: Some telnet connection halts

If you don't happen to have a LAN analyzer with you. Try using TCPTRACE on the VMS side. I don't recall the exact syntax.

Send the output to a file and and analyze it after the failure. Use /PORT=23 to limit the trace to telnet. Use /NUMBER=99999 and hit control-y after the restart. Type a string into the telnet session such as "XYZZYXYZZYXYZZY" so that you can identify connection during analysis.
Bojan Nemec
Honored Contributor

Re: Some telnet connection halts

Antonio,

Does this two PC have also problems when comunicate with other PCs? PCs have the same speed/mode problem with network cards. So you must check this. Maybe is time to get a managed switch, which has the ability to set the speed and mode for each port.

Bojan.
Antoniov.
Honored Contributor

Re: Some telnet connection halts

Move both PCs on hub 10Mbs and trouble seems solved :-|
I can't understand why. No change made neither on PCs or Alpha.

Antonio Vigliotti
Antonio Maria Vigliotti
Antoniov.
Honored Contributor

Re: Some telnet connection halts

Bojan,
the PCs had no trouble with other PCs. Now they work at 10Mbs obviously.
Theese PCs worked fine when access to internet moving files each other.

I'm perplexed :-?
Today I have to came back to my office and I believe I stop every change.

Antonio Vigliotti
Antonio Maria Vigliotti