There's quite a few topis about this error and I have now run out of options with my hosting comany after the php.ini was set as follows:
upload_max_filesize = 256M
post_max_size = 256M
max_input_vars = 10000
memory_limit = 512M
max_execution_time = 3000
default_socket_timeout = 600
Are there any fixes for this yet?