Hello to anyone still reading this post.

I've had to mke do with Windoze for the past few months, but now the matter is becoming critical, because I need the internet conection on my Linux box for work.

The previous problem seems to have been that the AC850 does not recognise the command "AT_OPSYS" at all. I removed this after reading a lot of other forums and the reference manual for AT commands supplied by Sierra Wireless. What I then got was a connection that lasted about a nano-second before the modem hung up. Here is the output from /var/log/syslog:

So there it is. The problem seems to lie in those last few lines. In particular: "sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]", since that is the point at which the successful connection ends.

Can anybody tell me what is going on? Why does the modem simply hang up? I'm feeling very frustrated, since other people seem to have no such problems.

I'd be grateful for any suggestions... however trivial or seemingliy unrelated!

Achim

P.S. Antworten auf Deutsch sind herzlich willkommen, denn ich kann Deutsch gut verstehen.