Speedtest-Cli don't work on Raspian Wheezy for Raspberry pi

[Wormz]

Anybody that can help me?
I have 2 Raspbery pi boxes
Model B, 512Mb Ram, Debian version 7.8 Kernel 3.12.35. Installed with cacti 0.8.8a and speedtest-cli, and this works fine.
pi 2 Model B, 1 Gb Ram, Debian version 7.8 Kernel 3.18.7-v7. Installed with cacti 0.8.8a and speedtest-cli, and this do not work.

Dump from debug mode:
shell>> /var/www/cacti $ sudo php -q cmd.php
PHP Strict Standards: Only variables should be passed by reference in /var/www/cacti/lib/ping.php on line 382
PHP Strict Standards: Only variables should be passed by reference in /var/www/cacti/lib/ping.php on line 382
PHP Strict Standards: Only variables should be passed by reference in /var/www/cacti/lib/ping.php on line 382
02/19/2015 03:45:34 PM - CMDPHP: Poller[0] Host[1] PING: UDP Ping Success (0.59 ms)
02/19/2015 03:45:34 PM - CMDPHP: Poller[0] Host[1] DS[3] CMD: perl /var/www/cacti/scripts/linux_memory.pl MemFree:, output: 437040
02/19/2015 03:45:35 PM - CMDPHP: Poller[0] Host[1] DS[4] CMD: perl /var/www/cacti/scripts/linux_memory.pl SwapFree:, output: 102396
02/19/2015 03:45:35 PM - CMDPHP: Poller[0] Host[1] DS[5] CMD: perl /var/www/cacti/scripts/loadavg_multi.pl, output: 1min:0.38 5min:0.18 10min:0.27
02/19/2015 03:45:35 PM - CMDPHP: Poller[0] Host[1] DS[6] CMD: perl /var/www/cacti/scripts/unix_users.pl , output: 1
02/19/2015 03:45:36 PM - CMDPHP: Poller[0] Host[1] DS[7] CMD: perl /var/www/cacti/scripts/unix_processes.pl, output: 152
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner
self.run()
File "/usr/lib/python2.7/threading.py", line 505, in run
self.__target(*self.__args, **self.__kwargs)
File "/var/www/cacti/scripts/speedtest.py", line 203, in producer
sys.stdout.flush()
IOError: [Errno 32] Broken pipe

If the script is run manually it works fine.
Any hints???