[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now


Procomm Plus 4.8 Serial Direct Connect

Posted on 2004-11-29
Medium Priority
Last Modified: 2008-02-01
I have client using Procomm Plus, emulating wyse50, Does not communicate with Server. Have identical pc right next to this one which connects no problem. Checked all settings, both identical. Used same Cable. Connecting thru com 1 direct connect.
OS - XP with SP2. Not sure if problem is with application or OS.
Question by:joerock1
  • 2
LVL 14

Expert Comment

ID: 12705635
First, make sure the serial port is enabled in the BIOS of the machine in question and if possible, set it to 3F8 and irq 4, rather than auto.  Second, SP2 enables the firewall on all connections by default.  See if you can turn it off for the serial connection.

Accepted Solution

NashvilleGuitarPicker earned 2000 total points
ID: 12709572
Also, make sure that COM1 isn't mapped to a network device, such as an old serial printer.  Although this is unlikely, it would prevent communication.  To see if COM1 is being redirected by Windows networking, you can start a command prompt and type "net use" to see a list of redirected ports and drive letters.

If you have followed JuhnnyCanuck's instructions and still can't connect, I find that it is sometimes useful to delete the COM1 port from Device Manager (Control Panel --> System --> Hardware --> Device Manager) and then force Windows to scan for hardware changes (or reboot).

Author Comment

ID: 12712973
JohnnyCanuck - I have tried both your suggestions, but it still didn't work. Thank You for your input.

NashvilleGuitarPicker - Tried your suggestions also. After deleting com1, re-detecting, and reboot I was able to connect.  Maybe Corrupt Registry Settings?
Thank You Also for your input.


Expert Comment

ID: 12716457
You're welcome.  Windows is sometimes flaky on COM port handling.  It may have been using the wrong driver, or had one of the resource settings slightly off.  It also could have been that JohnnyCanuck's suggestion fixed half of the problem. and that you needed to redetect the port after changing the address.

By the way, this trick works for many other devices as well.  It usually comes down to corrupt or incomplete registry settings, or an old version of a driver.  I have also run in to this problem when upgrading a driver.  The old version had some registry settings which choked the new version.  Deleting and redetecting flushes out the old settings before adding the new ones.

- Will

- Will

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When you discover the power of the R programming language, you are going to wonder how you ever lived without it! Learn why the language merits a place in your programming arsenal.
Web hosting control panels were first developed to make it faster and easier for most users to set up and operate websites. The graphical user interface (GUI) allows users to perform tasks by pointing and clicking rather than typing highly specific…
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

834 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question