I have AccelePortRas4 card and It’s have some problems. only MNP connection is desirable,so setup ATcommand like this:
AT%C0%E0\N5&Q5S9=12S10=7S12=255S36=4S48=128+MS=9,1,300,9600
but sometimes,the connection made by LAPM,or NONPLOTOCOL
Do you know Why?
is the ATcommands wrrong?
please give me ideas.
You settings/init string look good, so I’m not sure why you aren’t getting the negotiation you specified. About the only thing I’d add is an &F immediately after the AT, to make sure you’re starting at factory default.
Make sure you’re on the 6691_M2 firmware. If not, I’d recommend upgrading.
Another possibility is that an application may be initializing the modem differently (with a dialing string for example) after you initialized the modem as above. A dialing string with AT&F in it would surely do this.
If all that fails, I’d recommend calling Technical Support or use our Online Support Request form to open a ticket. The output of ATI3&V&V1 would be useful info to provide at that point.