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I download about 300GB monthly in big months and it’s always perfectly fine and router has uptimes of months, but when I start uploading a few gigabytes of data via FTP or via vSphere, the router usually crashes after a while, pretty much always before 2GB is uploaded.

I am not 100% sure if it’s the router that crashes, because when I disable and re-enable my network connection, the internet connection works perfectly fine again.

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up vote 0 down vote accepted

log into your DDWRT via SSH/Telnet
then 'cat /var/log/messages | grep dropping'

see if you come up with any dropped packages..

check out some of the other diagnostics here:

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Thanks, but unfortunately my dd-wrt does not log. – ujjain Jun 19 '11 at 17:05
try to turn on loggin and then wait for it to happen again – madmaze Jun 19 '11 at 19:15

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