After powering up, I am now getting a split second audio dropout that repeats about every 13 seconds. I never had this problem when I fed the 6500 directly into the Gb ethernet port on the desktop and used WiFi for internet on the computer. Things worked fine, except that I couldn't used K6TU's iPad interface program. Thus the new CAT6 cable and Gigabit switch.
I know that this is a networking problem, but I don't know what steps to take,
FLEX-6500 running V. 126.96.36.199
Lenovo K410 w/ i3 processor & 6 Gb RAM. AMD video card HD 6570 2G dual monitors (HDMI & DVI)
ATT270 Uverse modem/router/WiFi (Just installed on Wednesday)
You can install wireshark (freebie network sniffing tool which may or may not be your area) and then monitor the ip address of the radio to see what kind of activities are occurring in the packets. Wireshark does a nice job decoding the packets. I am also running the same gigi enet switch without any issues.
A quick and easy thing to try is to start a ping session from your Lenovo to the Flex. Try this...
ping 'IP address of your Flex' -t
The -t switch will keep the pings going until you tell them to stop with a control C. Watch the ping times when the Flex hickups. If they are high your problem could be latency in your network.
I will do a total power shut down tonight and see if it behaves OK in the morning.
There have been several reports that in some consumer Ethernet switches, turning this power saving feature off, which is usually on by default, improves throughput and reduces data errors.
Is your CAT6 LAN cable routed near any potential emitters on their route from you family room to your ham shack? When I got the 6700 I saw three different sources of RFI that I didn't know existed. The band scope on other radios didn't show the noise sources but they were very evident on the 6700. (TS-990S and IC-7600) I still have on periodic noise, not at my QTH, that I haven't located. (70 kHz spacing, 20 kHz wide, smooth shape, no noise is detectable by SSB, AM, CW detectors and the noise is intermittent.) My remaining RFI causes my noise floor to raise by 20 dB at intervals of 70 kHz.
The other two noises were eliminated by converting all wired LAN runs to CAT7 cable. I carefully opened one end and attached a ground wire to the outer shield. (Only ground one end.) My previous CAT5 and CAT6 cables both emitted RFI noise AND suffered from induced pulses from motors switching on, etc.
Good luck and let us know what your final solution is. That's how we accumulate knowledge.
Strange... The best I can think is that the "green" circuitry seems to take that long to finally shut down unused ports and adjust the power output of the three ports being used for the rig, the computer and the line to the router.
Oh well. For right now it is working. Not it is time to get out the 31 MIX beads and isolate the Uverse phone/internet router, it's backup UPS, and the switch because I saw a 4 dB rise in background noise all across the spectrum when it came on line.
It's always something!
Thanks for the input, guys.
Ken - NM9P
Regarding the shield of the cat-cable. Purchase pre-made STP or SSTP (single or double shielded) cable. A longer length for the main run, and a shorter cable which is joined by a non-shielded double female joiner. That will isolate the ground to one side only and prevent ground loops.
FRS was not fond of STP/SSTP cables because they could introduce problems. I just make sure there are no ground loops created.
There is no RF pickup on fiber optics, nor lightning paths either.