ssh freeze on CentOS 6.6

[loudking]

Hello all, I encountered above mentioned problem and I googled a lot then realize that it may be because of the network card problem.

My network card is Realtek RTL8111/8168/8411 (rev 02)
Kernel driver in use : r8169
Kernel modules: r8169

I installed kmod-r8168 and now /sbin/lspci -v changed to
Realtek RTL8111/8168/8411 (rev 02)
Kernel driver in use : r8168
Kernel modules: r8168, r8169

Setting LOGLEVEL to DEBUG3 on /etc/ssh/sshd_config shows that
whenever I typed something on putty window, server immediately adds 64 bytes to its buffer.
but putty window still freezes meaning that no letter appears.

Could anybody do me a help? Thanks.

[loudking]

problem still exists. can anybody give me a hand please?

[gerald_clark]

First, 'yum update' to 6.7. Then try again.