We recently needed to upgrade our internal LAN to gigabit so we purchased a Netgear GS748TP since we have a need for PoE on VoIP phones. We have been running on our Sonicwall TZ210 for about 6 months now with no issue and it is downlinked on the LAN port to a 10/100 Cisco/Linksys switch with no issues. I got the new Netgear unit in and loaded the latest firmware which is 188.8.131.52 (http://kb.netgear.com/app/products/model/a_id/2459
). When we plugged the Sonicwall LAN side into the new Netgear we get a red Link/Speed light on the top line for the LAN port of the Sonicwall. Generally nothing on the network works at that point. I believe this is a speed/duplex issue, but I tried manually configuring both units and no combination seemed to work. There were almost limitless options with auto/full/half and 10/100/1000 combo's on both units together. Even with one configuration that greened up the Sonicwall port, everything was still spotty on LAN connectivity.
Sonicwall Firmware - SonicOS Enhanced 184.108.40.206-17o
Netgear GS748TP Firmware - v220.127.116.11
Any detail on seeing this before would be great. Just looking to solve the apparent duplex issue between these 2 units and very curious as to why auto sensing on both unit ports does not work.
On a side note, we thought the Netgear unit was bad so we sent it back and got another RMA unit back. Uploaded the same latest firmware and it did the exact same thing. The Netgear unit was easily configured with the private IP stack and accessible within the LAN and seems to have no major issues. The fact that both identical units did the same thing led me away from the idea that this was a hardware issue. We used multiple patch cables as well to rule our physical connectivity as a simply issue.