I have been using GPRS on a Nokia 6230 on PCL 2009 for months, no problems.

Got the C5212 2 days back.
First, it would not connect using the old wvdial.conf file (the modem was detected on the same ttyacm1 port), throwing up an error I don't recall now.

Then I did a wvdialconf, and edited the resulting file, and this time I got an error "Voice line detected".

The phone came with the windows software, so tried getting online on a Win install. The phone connected, but the procedure involved disconnecting the phone (as described by the software itself). Assuming this "disconnection" could be a reason for wvdial to fail, I tried again on Linux. This time I could get online, without a hitch.

Yesterday, I abruptly started facing a new problem "LCD Terminated by Peer". I had used the phone error free for more than 2 hours. Then I disconnected and plugged it again, and voila the error!

I have looked at many sites and their solutions. None of them seem to change this situation. The most popular tip is to comment out all lcp related lines in the /ppp/options file. I am using wvdial and kpp, and my options file did not have those lines in the first place.

Should I retry the windows app?
Any other ideas?

Thanks.

OK. Now is the perfect time to be seeing miracles.

So, I went to the Windows app, connected to the net through it, returned to linux, and the error has disappeared. Writing this while using the phone.

I guess this is a question for paranormal investigators and psychics now.

Anyone willing to hazard an explanation to this behaviour?
And any solution to avoid the Windows routine- short of selling off the phone, something I did contemplate.

I would like to point out that nothing in the phone, wvdial.conf, etc has been changed before and after the windows routine.