Desktop

Ask something
Discussion Locked

Port won't close after use

0 helpful
24 replies

by smundine

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.
I am running Windows 98 on a PIII 650Mhz system. I have a USRobotics v90 internal modem. I have to delete the modem everytime before I shut down so that the system will reconfigure it upon startup. If I use the modem then disconnect then try to connect again I will get an error message 630. When I run diagnostics then on modem it says that it can't open port or port is already open. I show an ACPI controller using IRQ9 which is the same interrupt the system assigns to my modem when I startup. If I try to change the interrupt to IRQ3 or 4 it says it is in use by com1 and com2. If I try to use Com1 thru 4 it tells me that they are in use.

24 replies

by calves

A couple of things to check:
first look under other devices on control panel system, see if you have any unkown devices there. If you do, check the resources and see if it is using the modem resources. Click on update driver and point to your 3com CD.
If you do no0t have any unkown devices, check out the 3COM web site for newer drivers.

Good Luck!

by riszan

Go into device manager and remove modem, reboot pc and go into your Bios, disable com port 2, save seetings and reboot, the computer will readd the modem and you should be fine. you might also need to remove the com ports in device manager so the computer can reconfigure your com ports.

by tuck46

I would try first using string
ATZ in the extra settings to bring modem back to factory settings. If that fails to work, you will probally have to uninstall and reinstall the modem

by jun1cez1

To smundine,

You definitely have a system config error since US Robotics modems are never designed to use IRQ9. The problem your facing is that the modem or the port that you are using is infact using the programmable Interrupt Controller's IRQ resources.
If you are using win98, you may need to either re-install the OS or upgrade to Win98SE. Also, since you did not specify what kind of computer it is, you may also need to verify to the manufacturer if they such an issue regarding their Hardware.
In the meanwhile, go to system+device manager and then system devices (bottom), see if there's any entry that says motherboard resouces twice or more, if there is, you need to reset your bios specifically COM ports.
That i believe will help except its up to you how far can you play with computer most delicate area "BIOS".
Another important thing, IF the modem is still fairly new, it may be necessary for you to read the entire documentation just to see if they got any issue regarding this. If not, downloadin

by bgridley

If you are not actually using the Com1 or Com2 ports on your PC then go into your BIOS setup and "Disable" them. This will free up the associated IRQ (Com1 = IRQ4 , Com2 = IRQ3)
This should then allow your modem when you boot to be configured to Com1 or Com2.

by tlippert

Go to device manager and remove all comports. Remove the modem. Shut down the system.

Remove the modem from the computer.

Turn it back on go into BIOS.

AWARD bios: make sure ports are set to com1 and disable second com.(unless you need it then com4)

AMI bios: make sure ports are set to com1 and com4. (do not disable comports on an AMI bios. You will get a mystery comport).

Turn it on bring it up into windows. Shut the system back down then reinstall the modem. Hope this helps!

by pyro

i got the same prob w/ my Rockwell Modem(internal) first thing u should do is remove modem in control panel then remove any software associated with it then ren install everything and make sure nothing is conficting with..

Pyro

by saihib

The reason you can't reconnect is because rnaapp.exe is still running even after you disconnect. It is also the reason you are told the port is open when you run diagnostics. Hit ctrl-alt-delete and end the task and your should be able to reconnect and run diags.Error 630 means that the computer is not receiving a response from the modem. Check your accessibility options in Control Panel and make sure that "support serial key devices" is disabled.

by welovells

***HOLD IT! HOLD IT! HOLD IT!*** Be wary of all advice given so far. If it where a conflict with another device for the port, it wouldn't work right in the 1st place. 3com modems often work on IRQ9, The sucess of that is really up to the BIOS on the MB. more than likely the modem is bad, one of the recent storms in your area has fused the relay. It will not close by itself. Lastly, It is the responsiblity of the PC you are connected to, to send a close port signal to the modem on disconnect. If the modem is fine, it is probly your ISP.

by jun1cez1

To smundine,
Its not that i need your 1000 points but you actually made me reopen an old book. Error 630 means (PC Error Codes)"index stuck high;drive a" and its listed under the heading Floppy Drive/Controller. So as i had said on my first response, you definitely have an interrupt error against the controller which is most likely the programmble interrupt controller or the floppy controller, whichever which. I am using a QUE Book (Upgrading and Repairing PC) in case you want to cross refer about it.

Jun

by martinqc

When you remove the modem and associated entries (i.e. Wave device for voice modems in sound, game and video controllers), do it in safe mode. there could be multiple entries of those devices interferring with one another.

hope this helps...

This discussion is closed to new replies.