Problems with 2G/3G connection - Nexus S Q&A, Help & Troubleshooting

Hello,
I have Nexus S with CM10 and my Nexus S does really strange things when I'm on data connection through my carrier which is O2 Czech Republic. I have 3G on and in status bar I also have shown 3G...but only when phone doesn't download or upload data. When I open browser, update weather or do enything else which requiers data connection, in status bar I can see H (what does this mean) instead of 3G - my connection is only about 200kbps, which is not 3G speed...I try factory reset, stable CM10, newest nightlies, but nothing seems to work.
Does anybody know which could do these problems?
Thank you very much
//EDIT: Same on CM7.2
//EDIT: Sry, I'm really stupid...read FAQ and realize that I've probably run over FUP ...my fault...CM10 is the best!
Lock please and really sorry for stupid questions.

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Hi kincawine3
I have the same problem. I live in the Netherlands with Tmobile as my carrier, full data plan etcetera.
I installed android 2.2 my wifi works, my internet doesnt. It says 'connected', it even shows the right icons in the taskbar, but no internet.
I tried erasing my apn settings and resetting them and I tried factory settings but to no avail. I ringed Tmobile about it and (as was to be expected) they couldnt help since they suggested the above.
Help would be immensely appreciated.
gr
First of all, make sure you're not set to a static IP (which i assume you're not).
You might also want to check a different kernel. I'm not familiar with the kernel used in your build so i couldn't tell you what to expect - but there are 2 kernels running for the HD2 (hastarin's and mdj's). you can try to use them and see if it helps. the older builds had problems with ppp which are now (more or less) fixed.
read the instructions on how to replace the kernel and let me know if you run into any problems.
Thanks Nir
Hi,
While i do not share the problem of no internet access, the connection drops off regularly. Why, but more practival how do I fix it?
I can often see the signal switching from 2G to 3G to HSDPA, perhaps this has someting to do with the connection going dead. Is there a way to keep the signal fixed on 3G? Like there is an option to only maintain 2G connections.
When i go to Settings and disable + enable internet access it works fine. Sometimes the connection goes dead every five minutes, sometimes rarely.
Facts: HTC HD2 WinMobile 6.5, Android 2.3 via SD card method.
Unlimited data plan.
regards from Netherlands

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