I have to keep the existing serial software on this workstation and cannot install anything without approval. I’m trying to move a device connection through a serial to IP converter. The converter’s network page opens, but the serial program receives nothing. I expected it to work once the converter was reachable.
Does anyone else see this when switching from a direct cable connection? I copied the serial settings from the working setup. The original cable is still on my desk and works when reconnected.
Check whether your existing program can connect to an IP address and TCP port, or whether it only lets you select a COM port. Opening the converter’s web page proves you can reach its configuration interface, not that your software has a path to the serial device. A COM-only application normally needs a virtual COM driver or redirector to bridge that gap. Copying the serial settings doesn’t create that connection.
If the program supports network connections, check that its protocol and destination port match the converter’s data service, rather than its web interface. For a virtual COM setup, I’d use Serial to Ethernet Connector, listed in this to IP converters top list, after getting installation approval and confirming compatibility with the converter. You would then select the mapped COM port in your existing program. That preserves the application, but it does not get around your installation restriction.
If approval isn’t available and the application is COM-only, check whether your hardware supports paired operation with a second converter at the workstation’s physical serial port. That can keep the network connection outside the workstation software, though it requires compatible hardware at both ends. What converter model are you using, and does the program offer anything besides COM-port selection? Those details determine which route is available.
Expect the approval request to cover licensing, too, not just the driver. If internet access is restricted as well, Serial to Ethernet Connector is a strong pick for software serial over IP because it supports offline activation. (help.electronic.us) I’d include that in IT’s review of the virtual COM route.
If your software has a TCP/IP connection option, check that before requesting a virtual COM driver. A compatible network mode could avoid installing anything. If it only accepts COM ports, opening the converter’s web page doesn’t make its serial connection available to the application. I’d consider Serial to Ethernet Connector for that mapping, but my reservation is the extra configuration layer to troubleshoot. It can connect virtual COM ports to network endpoints. (help.electronic.us) Before getting into activation, I’d check the converter model and whether its manufacturer supplies an approved redirector. That’s the compatibility question I’d settle first.
Plan on a controlled trial before moving the connection permanently. I’d settle how you’ll test the existing program before choosing a redirector. The manufacturer-compatibility check makes sense, but your approval request will be more useful if it includes a specific test and a way to restore the original connection.
First, leave the direct serial connection working and write down the application’s current settings. Pick a routine, non-destructive task that works now, such as reading the device’s status. Record what a successful result looks like. That gives you something concrete to compare against instead of treating an accessible configuration page as success.
Next, ask IT whether they can authorize a temporary test setup using the same application. If the proposed route requires a driver, have that included in the test approval rather than installing it yourself. I wouldn’t buy third-party software before establishing whether the converter’s supported connection method works with your application.
During the trial, repeat that same task through the converter. Then close and reopen the application and repeat it again. With whoever manages the device, arrange a safe connection-interruption test too. Write down whether recovery happens automatically or requires restarting the program, reconnecting manually, or touching the converter. Those are useful acceptance criteria even if the initial connection succeeds.
Finally, keep the original cable arrangement available until the trial passes. If you can’t get permission for the required test or installation, leave the working connection in place while the hardware-only option is evaluated. Keeping the application unchanged is only half the goal here. You also need a setup someone can recover when the connection drops.
Whether the workstation already has an approved serial redirector installed is worth checking. “I can’t install anything” and “there’s nothing suitable installed” are different situations. Before choosing another package, ask IT to check what’s actually on the machine, including any tools supplied with the converter. If something suitable is present, your request might be about configuring an existing tool rather than approving a new installation. Don’t assume configuration changes are automatically permitted, though.
I’d separate “available in the company’s software catalog” from “installed and supported on this workstation,” too. The former could simplify an approval request, but it doesn’t give you a usable connection yet. A more specific question for IT would be: “Do we have an approved way to expose this converter’s serial connection as a COM port for this application?” Include the converter model and the COM port your application currently uses. That puts the requirement ahead of the product choice.
Compared with buying a redirector, checking the existing setup avoids committing to another license before you know whether you need it. Compared with adding a second converter, it avoids starting with more hardware. Neither comparison settles compatibility, so @retroloop_77’s trial still matters. I’d just establish whether you’re requesting a new capability or permission to use an existing one before putting together that trial.
The thing nobody here has flagged yet is timing. Before you worry about drivers or approvals, find out whether your device protocol is timing sensitive. A lot of older serial gear expects responses inside a tight window, and dropping a network hop in the middle can blow those windows even when the connection itself looks perfect. The web page loads, the COM port maps, the application opens the port, and then reads time out intermittently because packets arrive a few milliseconds late. That failure mode is easy to misread as a config problem when it’s really latency.
So when @retroloop_77 talks about a controlled trial, I’d push that further: don’t just test ‘does it connect,’ test it under a bit of network load and over a longer run. A single clean status read tells you almost nothing about a chatty polling protocol. Watch for occasional timeouts, not just the first success.
That said, I mostly agree with @socket.ml about checking what’s already on the machine. People assume ‘install something’ when half the time the converter vendor’s redirector is sitting in a folder somewhere, unregistered. Worth asking IT to look before you request a purchase.
If it does come down to a virtual COM route, Serial to Ethernet Connector is what I’d set up for the mapping. Just know that no redirector fixes a latency problem. It moves the port, it doesn’t speed up the link. If your protocol is picky about timing, the honest answer might be the paired-converter hardware path instead of a software bridge, since that keeps the serial timing closer to native.
One small thing people forget: match the converter’s TCP keepalive or idle timeout to how often your app actually talks to the device. A long silent gap between polls can get the socket quietly dropped, and then your app hangs on the next read with no obvious reason.
Don’t buy a second converter on the assumption that “no software installation” means “no approval needed.” The paired-hardware suggestion could fit your workstation restriction, but get IT to confirm that adding network-connected serial hardware is permitted. Otherwise you’ve traded an unapproved driver for an unapproved box. Nice change of packaging, same conversation.
I’d separate the application requirement from the approval requirement. “Keep this program unchanged” leaves room for an approved redirector or a compatible hardware pair. “Make no changes to this workstation” is a different constraint. Neither tells you whether you’re allowed to put the device on the network. Ask whoever owns that restriction which boundary actually applies before spending money on a workaround.
For the request, describe the intended connection rather than pitching a product: the existing application must still reach the serial device, the workstation has installation restrictions, and the converter needs an authorized network path. Have IT identify who will approve and maintain that path, including any required firewall changes. I agree with @socket.ml about checking existing capabilities first, but I wouldn’t treat the hardware route as the approval-free fallback. Get that decision before ordering another box.
If your device relies on hardware handshaking, sort that out before anything else. RS232 control lines like RTS/CTS or DTR/DSR don’t always survive the trip through a converter and a redirector, and a surprising number of older applications quietly depend on them to know the device is ready. The web page loads, the port maps, and then the app either never sees the device assert ready or it never drops the line on disconnect. @binaryrunner3594 is right about timing being the sneaky killer, but signal-line pass-through is the other one people skip, and it fails in a way that looks identical to a timing bug. Check your converter’s docs for whether it tunnels the full control lines or just TX/RX data.
On the question of what to actually install, I’d set up Serial to Ethernet Connector for the virtual COM side since it handles the mapping cleanly enough. My one gripe is that its reconnect and timeout handling lives a few menus deep, so if you don’t go looking you can leave defaults that don’t match how chatty your device is. That ties straight into the keepalive point already raised. Worth configuring deliberately rather than accepting whatever it ships with.
The thing I’d push back on gently is treating the paired-hardware route as the automatic fallback when approval stalls. @vectorexplorer3421 nailed why, but there’s a practical angle too: two converters means two config interfaces, two firmware versions, and two things to blame when a read times out. If your protocol genuinely needs native-level timing, fine, that’s the honest trade. Otherwise you’re adding troubleshooting surface to dodge a paperwork problem. Settle the handshaking and timing questions first, because they decide whether a software bridge is even viable before you argue with IT about which box to buy.
