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Thread ID: 33126 2003-05-07 23:45:00 Either modem works or the network card works but not both! davidc (885) Press F1
Post ID Timestamp Content User
142244 2003-05-07 23:45:00 My computer has a 600MHz processor, 64MB RAM, 20GB HDD, a Lucent Winmodem and a Surecom 10/100 network card.

My problem is that I can have either the modem working or the network card working but not both at the same time!!!

- when the modem is working (connecting to the Internet) my computer cannot see my other computer ("Unable to browse the network")

- if the network card is working (can connect to my other computer) then the modem can't connect to the Internet (unable to negotiate a compatible set of etc)

I have tried
- installing a different network card - same problem
- removing/reinstalling TCPIP, DUN, all network components (including removing DUN components from the registry).

Anybody got any ideas???
DavidC
davidc (885)
142245 2003-05-08 02:58:00 I would look for an IRQ conflict beama (111)
142246 2003-05-08 05:00:00 Whoops, I forgot to mention that my computer is running Win98SE.

I don't think it's and IRQ conflict. Device manager shows the modem is using IRQ10 and the network card is on IRQ11
davidc (885)
142247 2003-05-08 05:08:00 The modem and network card will both steal memory from the motherboard for their buffers. With "only" 64MB, you probably haven't got enough for both.

That's just a guess. :D
Graham L (2)
142248 2003-05-08 06:19:00 What a strange problem. It could be a memory problem as Graham suggests, or maybe more likely, a quirk of your winmodem, they do tend to have minds of their own.
Sometimes funny things happen with a PCI slot that shares IRQ with with say an AGP slot. So even though there is no conflict showing in device manager problems may arise, but have to admit that doesnt really add up. Still, if you have spare slots try moving the modem around.
Im grasping at straws here :)

Using an external modem would solve the problem, but thats a cop out to finding the cause of the current problem.
Terry Porritt (14)
142249 2003-05-08 09:51:00 heres another thought, Try going to the bois and checking memory addresses the modem and nic maybe using the same address range beama (111)
142250 2003-05-08 13:46:00 I assume in your network protocls you have a TCP/IP -> Dial-Up Adapter and a TCP/IP -> 10/100 NIC Card

or similar... if they are both fighting over the same protocls that is likely to cause problems...
whiskeytangofoxtrot (438)
142251 2003-05-09 05:15:00 Nope . The TCP/IP protocol is bound to both the interfaces . Each uses its own stack . There is no fighting at that level .

I suspect the memory shortage, because there are no error messages (reported) . If there are interrupt conflicts, both would start . They just wouldn't work . . . often just hanging the machine .

Can you borrow some memory (from the other machine, perhaps) temporarily?
Graham L (2)
142252 2003-05-09 07:03:00 the only things i can think of off the top of my head is if you have been tweaking out the mtu/rwin settings. it pays to set these back to default before redoing the networking.

also uninstall any firewalls and clean out any spyware.
tweak'e (174)
142253 2003-05-09 08:29:00 i had some problems with nt4. the hcf modem and realtek lan card.
solution: i used a 3com card instead.

this not happen on win95
nomad (3693)
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