WNDR3400v3 very slow wired connection
I subscribe to Cox 150Mbps. Typically I just check emails and do internet browsing. Today I was updating an iphone software with itunes and saw the download was extremely slow; it took almost an hour. So I did a speed test that was provided from Cox website.
Test 1: Laptop wired directly to modem.
Test 2: Laptop wired to router.
My firmware is the latest available. After reading many posts in the community, I tried:
1. Power cycling. Result: no change
2. Factory reset the router. Result: no change.
When doing each items above I followed the instructions about turning off all devices that were connected to the network.
Any suggestions? Thank you.