[plt-dev] git question

I am using two machines to develop, call then A and B. 

My usual mode used to be to login into A from B in the morning and to svn update A (compile from scratch). In the evenings, I'd do the reverse. By the time I got to where A/B are located, the builds were done. 

With git, I can't do this. While I can still login in from A to B and perform a "git update" (pull, compile, install), the opposite direction no longer works. Specifically: 

 when I login from B to A and run a git pull, it demands a git server password 

Now here is where it gets really weird. If I am at B and I ssh to A and then from A ssh back to B, I can do the git pull w/o a problem. 

Any hints on how to debug this? (Yes, I have tried the -v options and yes, the setup looks correct.) 

-- Matthias