sundance-communications.com/forum Forums TDM Business Telephone Systems Samsung Telephones & Systems OS7100 V4.30i LAN Port Stops Working

We have a five year old OS7100 installed that is connected via SPNET to an OS7200. From time to time SPNET stops working. I visited the site and saw that the LAN cable was connected and the LAN port indicator light was lit. We tried to ping the phone system with no luck. I disconnected the LAN cable and tried to direct connect with a LAN cable from my laptop using IT tool. The LAN light was lit, but I could not connect and still could not ping. After trying this a couple of times with different cables (I thought my cable was bad) I still could not direct connect. I gave up and plugged the customers LAN cable back in and we could ping again and SPNET was working when I left the site. This continued working for 10 days and now it is down again. Do you think that it is a hardware issue or database corruption. The system has gone up and down a few times because of power outages due to thunder storms. Thanks, MikeS In VA

Could be a problem with the lan port.. is the 7100 behind a firewall or is it directly on a public IP?

Recently had one go bad on me. Rare, but does happen. Had to swap out the processor, problem fixed.

Thanks, Robert I hope that Doug is staying busy.

MikeS in VA

The OS7100 is behind a firewall.

Mike,

What type of firewall/router is onsite? Rob was mistaken about his previous post. There was/is alot more to that customer than he knew. In troubleshooting with the customer, we found that with the processor connected to the network and we ran continuous pings, replies were scarce. When we dumbed down the switch port the processor was connected to to 10mb half duplex, are pings were consistent with replies. So naturally we thought the LAN port on the processor went bad. We shipped out a new processor and long and behold, we had the same problem. Dumbed down the port, everything fine. So I had the customer simply disconnect his router (an Asus consumer grade router/firewall) from the network switch and run continuous pings to the processor from his local PC and everything was fine. Connect the router while pings were running, and they started dropping again. Not sure how the router could be effecting this, but we are currently in process of replacing the customer's router with a enterprise grade router/firewall. I will let you know what the outcome is, he should be getting the device today.

Toshibaguy, I believe it is a Sonicwall.

MikeS In VA

Hey Mike,

So turns out the router/firewall was not the issue either. We've replaced the processor, the SD card, the router/firewall and nothing fixed the issue. Basically the problem on ours is that the LAN port on the processor will not function at 100Mb Full Duplex. We have to dumb the switch port down to 10Mb Full before we can get constant connectivity. Otherwise, we can't connect, even with a crossover cable direct to system, and pings come back erratic (5 replies, 10 no replies, 3 replies, 20 no replies).

If at all possible try dumbing the switch port to 10Mb full and see if that helps with connecting. If you can't do the switch port, try you NIC on your laptop and connect via a cross-over cable and see if you can connect then.

I don't think we're going to try this, but the only thing left in our scenario is to swap out the cabinet.

Toshibaguy, when I got there I tried to direct connect from my laptop. I tried 2-3 times and got no good pings. Tried to connect through their network. No good pings. Reset the switch. Tried direct connect again. No good pings. Plugged their system back into their lan. Connected to the system and it was back working again. I could connect to the switch through their network. SPNET was working again. Two weeks later SPNET was down again. No local ping. No ping through the VLAN from site to site, no SPNET connectivity from switch to switch. MikeS in VA

The LAN port on a processor card is a 10 base-t/100 base-tx ethernet port. Therefore it will connect and auto sense what speed needs to be used. IF you are connecting from your laptop to the port directly, you need to use a straight through cable and not a crossover.