I am sorry to hear that you are not fully enjoy PlayStation Home.
Here are some things that you should try:
1. If you conncect to the internet wirelessly, try to connect using an internet cable.
2. Try to reboot your router
3. Try to reconnect to your network from the PS3, by going to Internet settings.
4. Additionally, when my connection is not stable, I am moving my console a bit to improve the signal. Sometimes it is working like a charm.
I hope one of the above will fix this for you, if it does not, please do not hesitate to request additional help.
I wanted to post a response but not sure what error code ur having troble with if u do remeber the code it will help us out alot like is it a M-10 code or 8021001 for example if u add the code u might get a better response thank for reading my commit