I got an attack of the network lags after upgrading to 0.99 
Downgrading didn't help, powering down, restarting and rebooting didn't help. Even with cgminer not running ping times can take up to 2 seconds. SSH'ing in is excruciatingly slow. One time I couldn't even ssh in until I restarted it again. I just barely got it mining again. I saw others had gremlins that went away, but I can't seem to find any way to repair it.
Downgrading didn't help, powering down, restarting and rebooting didn't help. Even with cgminer not running ping times can take up to 2 seconds. SSH'ing in is excruciatingly slow. One time I couldn't even ssh in until I restarted it again. I just barely got it mining again. I saw others had gremlins that went away, but I can't seem to find any way to repair it.