Debian repo potential problem

debian@beaglebone:~$ sudo apt-get update
Get:1 http://security.debian.org wheezy/updates Release.gpg [1571 B]
Get:2 http://security.debian.org wheezy/updates Release [102 kB]
Get:3 http://ftp.us.debian.org wheezy Release.gpg [2390 B]
Hit http://debian.beagleboard.org wheezy-bbb Release.gpg
Get:4 http://repos.rcn-ee.net wheezy Release.gpg [819 B]
Hit http://debian.beagleboard.org wheezy-bbb Release
Get:5 http://repos.rcn-ee.net wheezy Release [2166 B]
Hit http://debian.beagleboard.org wheezy-bbb/main armhf Packages
Get:6 http://repos.rcn-ee.net wheezy/main armhf Packages [96.9 kB]
Get:7 http://ftp.us.debian.org wheezy-updates Release.gpg [1571 B]
Get:8 http://security.debian.org wheezy/updates/main armhf Packages [371 kB]
Get:9 http://ftp.us.debian.org wheezy Release [168 kB]
Get:10 http://security.debian.org wheezy/updates/contrib armhf Packages [20 B]
Get:11 http://security.debian.org wheezy/updates/non-free armhf Packages [20 B]
Get:12 http://ftp.us.debian.org wheezy-updates Release [124 kB]
Hit http://ftp.us.debian.org wheezy/main armhf Packages
Hit http://ftp.us.debian.org wheezy/contrib armhf Packages
Hit http://ftp.us.debian.org wheezy/non-free armhf Packages
Get:13 http://ftp.us.debian.org wheezy-updates/main armhf Packages [4383 B]
Get:14 http://ftp.us.debian.org wheezy-updates/contrib armhf Packages [20 B]
Get:15 http://ftp.us.debian.org wheezy-updates/non-free armhf Packages [20 B]
Fetched 875 kB in 24s (35.3 kB/s)
Reading package lists… Done
W: Size of file /var/lib/apt/lists/ftp.us.debian.org_debian_dists_wheezy-updates_main_binary-armhf_Packages.gz is not what the server reported 4383 4452

If further details are needed let me know.

Second try, no such error / warning. Odd though, we do not usually get corrupted downloads here. Slow . . . Yes, corrupted . . . no.