Ugh. Same here I really wish they fix this error its getting on my last nerves and it lags a lot. It feels like its only happening to me my friends are doing fine on pshome without any error. Could it be the update or no?
Hey guys. To clarify, a M-10 error refers to connection issues between your PS3 and our servers or the lack of response thereof. When this happens to everyone who enters Home (such as near a maintenance window) this is an indication of issues with our servers. When it happens randomly to random folks, it unfortunately can be attributed to issues with an internet provider/connection strength. I recommend doing some basic cleaning in Home's cache and your own router settings to assure that you are getting the strongest connection possible to your PS3. Remember that a strong connection to the internet or to other PS3 games does not mean a connection will be as equally strong in Home.
Try rebooting your router or switching from wireless to wired connections. If you get any specific situations, such as getting the error when entering a particular space, let me know as that may be related to a specific space's server rather than your internet.