IPhone signal aquisition issue in/out of building

This is a very recent development with my iPhone 3G.
Everytime I get leave my apartment (where I have great signal), go down the elevator into the garage (where I lose the signal) and drive out where I would normally regain my signal (to a full healthy signal) - the iPhone no longer finds a signal.
This used to not be an issue, regardless of wether I was in just Edge mode or with 3G enabled.
Now every time I lose signal for either a short time or a long time - the iPhone does not get it back once I am in an area with a signal. (In/out of building, subway, etc..)
My attempts to solve the issue:
- I tried being in just Edge mode (turning 3G off) - the issue is still there
- I tried turning on and off Airplane mode (waiting a few seconds in between modes)
- I reset and restored the iPhone that didnt solve the issue either.
I am out of ideas at this point - so I come here and see what my options are.
Sorry for the trouble and thank you in advance.
-Dmitriy

I am in DC also.
Now my iPhone 3G is working fine in those areas of DC where I use it. It worked fine when I first bought it months ago, then about a month ago, for about 5 days, I noticed the problem you did sometimes. Also then, sometimes I had to turn off 3G to get a signal. Sometimes it would revert back to GPRS (not 3G or EDGE). Sometimes it would connect to 3G and there would be no data connection. Then after 5 days it was fine. I expect I just experienced some side-effects of network adjustments from AT&T. I let it go and it resolved itself.
Now I see AT&T and other carriers bringing in temporary portable cell sites to the National Mall and downtown to handle the crowd expected at the inauguration January 20 (you can see one with the AT&T logo at the intersection of Constitution and Louisiana Ave. NW on the Mall). I think those are being turned on and adjusted, and I expect there are some hiccups when doing that.
I'd let it go for a few days and then call AT&T if it does not clear up or if it is a big problem for you now.

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