SmartSDR not starting everytime

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  • Updated 3 years ago
I am new to flex and have had my 6300 for roughly a week. When I boot it up and get the green light. I start smartSDR and it see's the flex....I highlight that and click connect and the software says "not responding", so I force a close on smartSDR, reboot the radio and hit connect and it works. If i don't use for a prolonged time, I have this happen always on the first boot....always fires up after reboot.
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Luke Reynolds

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Posted 4 years ago

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Luke Reynolds

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I added the reservation.....I will need to probably check back in the morning to see if it worked.....thanks for the tips!!! What a great forum.
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Lee - N2LEE

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Luke good luck and ENJOY the 6300. Its a GREAT radio.
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George Molnar, KF2T, Elmer

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Also make sure there is only one DHCP server running in your network and that it is turned on and running before you start the rig.
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Lee - N2LEE

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George is correct. Most likely the cable modem should be the DHCP server not the wifi router.
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Walt - KZ1F

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I would say no. The router handles that function. You guys are just guessing at this huh???
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Mark Erbaugh

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I have exactly the same symptoms with my Flex 6300. My router / DHCP server is an Apple Time Machine. I sent Tim at Flex some Wireshark dumps of the network comms and he was unable to find a problem. None of the other devices on my network have ever had a problem getting an IP address. The problem has existed from my first SSDR version, 1.3.8 through 1.4.3.
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Luke Reynolds

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ok tried to boot the flex this morning...radio is showing 169.254.78.204 (wouldn't connect)...but below is what I reserved on the subnet for the flex......

(Edited)
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Luke Reynolds

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After the reboot this is the IP showing

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David

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More information about you network setup and connections would be helpful. If you could provide a diagram. The comment about making sure you only have on DHCP server is a good one. The reserved is not being handed off when you reboot. A couple thoughts the MAC isn't right for the Flex reserve configuration, there is another device on the network handing off DHCP (possibly your ISP router), or something else.  What happens if you disable the DHCP server on the Netgear? If your devices get assigned addresses there probably another device configured for DHCP.
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KY6LA - Howard, Elmer

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My best guess is that you have the wrong MAC address. My 6700 starts with 50.56. I am not sure if the 6300 uses the same chipset but if so, then you should see similar numbers
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David

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My 6500 uses D0-39-72 which Texas Instruments. I am guessing your 6700 is 50-56-63 which is also TI. The one he has list 60-02-B4 is Wistron NeWeb Corp. so there is a good chance it is the wrong MAC.

http://standards-oui.ieee.org/oui.txt
(Edited)
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Luke Reynolds

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Has to be one of these 4 with no tag
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David

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You would have to check with Flex but those don't seem likely to be the Flex given the associated vendors.

If Lee's suggestion of using the command prompt to ping the Flex IP and then arp (shown below) didn't work for getting the MAC (physical Address) then try Wireshark.

C:\>ping -n 1 192.168.1.152

Pinging 192.168.1.152 with 32 bytes of data:
Reply from 192.168.1.152: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.1.152:
    Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\>arp -a 192.168.1.152

Interface: 192.168.1.210 --- 0x27
  Internet Address      Physical Address      Type
  192.168.1.152         d0-39-72-66-00-26     dynamic

With the SmartSDR running and the PC connected to the radio you can put ip.addr==[FLEX IP] in the filter. Collect some packets then stop and select one of the packets in the details you will see the MAC in parentheses on the second line. In the example below the Flex IP  was the Src:

https://www.wireshark.org/download.html

Ethernet II, Src: TexasIns_66:00:26 (d0:39:72:66:00:26), Dst: Plugable_fa:5e:ea (8c:ae:4c:fa:5e:ea)

00-15-65 XIAMEN YEALINK NETWORK TECHNOLOGY CO.,LTD
00-02-d1 Vivotek, Inc.
02-0f-b5 Not Listed
00-02-d1 Vivotek, Inc.
(Edited)
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Luke Reynolds

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KY6LA - Howard, Elmer

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Looks like 192.168.1.16 is the device
MAC Address - 02:0f:b5:8e:26:06

Suggest you reserve a high number for the device such as

192.168.1.116 so you do not get into conflicts in the future
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Luke Reynolds

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Thats the MAC of the wireless extender the flex is plugged directly into WN2500RP.....just reserved the ip to the mac....booting the flex now
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David

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Looks like the Flex MAC is d0:39:72:8e:26:06 but that isn't listed in your Netgear screen shots.

Are these  this basically you network connections? Have you logged into the Time Warner Modem and confirm that it is not setup for DHCP? If you want the Netgear to handle DHCP you need to have T-W DHCP disabled and manual configure the Netgear to use 192.168.1.1 (typically or what you want to assign) so it connects to the modem.
Time Warner modem<-wired->Netgear wireless router<-wireless?->Netgear extender<-wired->Flex
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Luke Reynolds

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I have never logged into the time warner router.....I am not sure I have access...but I can login to both the netgear main wireless router and the extender. God I wish I was better at networking!!
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David

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It seems that you may be fighting DHCP servers and the T-W modem is also a DHCP server. 

You can test this by turning off DHCP services on the Netgear. Restart the T-W modem and Netgear devices. If your devices get IP's and connect then the T-W modem would appear to have DHCP.

You can try this link for accessing the T-W modem. If you don't have success there try T-W support.

http://192.168.0.1 or http://192.168.1.1
User: admin
Password: admin

More information here:
http://forums.timewarnercable.com/t5/Connectivity/Arris-New-Modem-IP-login-TWC-fail/td-p/49397
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KY6LA - Howard, Elmer

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Another Guess

Logon to your WIFI Extender.. and look for the MAC address in its attached devices table.

IIRC the Wifi Extender does not issue IP addresses if its in the Bridge Mode. but it translates the MAC Address..
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Luke Reynolds

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so the saga continues....I tried setting up a IP reservation for 1192.168.1.163  D0:39:72:8E:26:06....tried to reboot the flex and got a different IP (192.168.1.11). I checked the extender for attached devices and this is what I see.

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David

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Looks like you have identified the source of confusing MAC. As Howard suggested the WiFi extender is passing a Virtual MAC which what your Netgear router is using in its tables. Looking at the N600 WiFi Range Extender Model WN2500RPv2 User Manual p.80 shows how to handle MAC filtering for WiFi. Try using 02:0f:b4:8e:26:06 for the Flex reserved MAC. (not sure if you did this already).

Is it possible for you to connect the Flex to the Netgear router directly removing the hop and the virtual MAC issue of wireless extender? Even if it is just for testing. If that resolves thing then you can decide how to proceed. Live with the reboots, run an ethernet cable to office, run the antenna to router and move the Flex, or something else.

Opening a Helpdesk support ticket with Flex is a good idea. When you get a solution please share it here.

http://www.downloads.netgear.com/files/GDC/WN2500RPV2/WN2500RPv2_UM_28May2014.pdf
(Edited)
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Steve - N5AC, VP Engineering / CTO

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I've not read the thread in detail, yet, but I wanted to add a couple of things just for reference.  First, today the MAC OUI comes from the Ti DaVinci part in the radio so it will always have a TI OUI.  Link any big company, TI has a bunch of OUIs so you'll have to run them against the database.  We also have a FlexRadio Systems MAC address in the radio, but today it is not exposed.  It just didn't seem terribly important, but in the future we may turn it on.  In this case all of the FLEX-6000 radios will have a MAC address that begins with 00-1C-2D.  I'd have to go check, but I believe the FLEX-6000s are currently in block 02-00-00.

Second, I have not done a DHCP renewal on the radio with a new IP address to know how it would tolerate this and it is possible that this is what is going on.  Typically, when a client's lease expires and it requests a renewal it will get the same IP address.  This idea is pure conjecture and I've not had a chance to test it.
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Tim - W4TME, Customer Experience Manager

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Luke - this is not a simple issue to diagnose, but I have read this entire thread and I believe the issue is related to network timing issue.  DHCP (whether or not you use a reserved address or not) is a timing specific protocol and if the router does not answer in the proper amount of time, then the radio will fallback to the 169.254.x.x IP address (called link-local).

I suspect that hen the radio boots the first time, something in the network link between the router and the radio is not initially passing all of the DHCP broadcast traffic and either the DHCP discover or the DHCP Offer messages are not making it through.  Once radio boots once the network link is working properly, then on the subsequent reboot of the radio, DHCP works properly.

I did not see a network diagram of you network, so I can't say where to start looking for the culprit.  
If you do not find a remedy on the Community,  I recommend you submit a support ticket via our HelpDesk (https://helpdesk.flexradio.com/hc/en-us) so one of our Support Engineers can assign you a case number and investigate the issue.

Opening a HelpDesk support ticket will ensure our highest level of customer service we can provide.  For details on how to submit a HelpDesk support ticket, please refer to the following URL: http://helpdesk.flexradio.com/hc/en-us/articles/202118688-How-to-Submit-a-Request-for-Technical-Supp...

Once the support ticket is submitted, a support engineer will be in contact so we can work on the issue.  
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Joe WD5Y

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I just found this thread and am having the same issue. Also, have the same extender, wn2500rp and ac1900 router. Is there a remedy that anyone knows on this? Any help would be much appreciated.

Thanks and 73's
Joe
WD5Y
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Mike KD2CJJ

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My bet its a flaky switch in between his DHCP server and the end point (the flex)...  

Remove all devices between your DHCP / Router and the flex and retest.

There was a discussion on this a few months ago - and this was the issue for him (and me).
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Joe WD5Y

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Thanks, I wish it was a switch problem as noted in the article. I don't have a switch on the
setup. The smartsdr pc and flex 6500 are plugged straight into the wn2500rp wireless extender. I used this because I can not get a straight connection to the router so purchased the wireless extender with wired connections on it. The pc has no issues getting ip addresses. I know it has something to do with dhcp assignments from the router, I also checked and can not adjust ip lease times on the router, would try that if I could.

Thanks,
Joe
WD5Y
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Mike KD2CJJ

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An extender is a switch (in the most simplest explanation)!

Networking is a complex beast that has been over simplified by it working 99.99% of the time.  Without getting into it, DHCP is NOT the most reliable protocol thus it does not take much for it not to work properly.

Take the flex and DIRECTLY plug it into the router that issues the DHCP assignment.

Its a 10 minute process to rule in or out any other devices - e.g. your extender.

The beauty of the flex design is that your flex need not be in the same room next to your PC.
(Edited)
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Joe WD5Y

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I understand that the extender is a switch. I just thought this had been addressed with a change in the dhcp configuration in the router, which transfers through the extender/switch or it's supposed to. My equipment is the exact same as posted in this thread, netgear model #'s etc. For some reason the flex is the only device with this issue, I am not saying it is the culprit, just hoping someone had the answer. I just did not want to go the route of replacing existing gear as it does get expensive. Anyway, just drop it and I will look elsewhere for answers.

Thanks and 73's
Joe
WD5Y
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Mike KD2CJJ

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LOL.... If you want to be narrow minded in the help you get, then dont ask for help in the first place!  Just keep what you got and live with it!
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Dale KB5VE

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I got the same treatment as Joe is getting here when I pointed out a issue with the 260x graphics card. I was told others had one working and it had nothing to do with the 6500, I was setting it up wrong, I needed to make changes in the registry, even Flex said the card should work. I put a problem out and asked for help .

Well if you will look in the flex support site you will now see that Flex advises this card will not work with the Signature series! So when someone ask for help I do not see it being narrow minded, in fact it might not be Joe who is narrow minded. We must all pull the blinders off and realize even Flex radios have issues as all others do, but working together we can help each other solve the issue.
(Edited)
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KY6LA - Howard, Elmer

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Make sure you shut off all the GREEN power savings function in the switch
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Joe WD5Y

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Thanks Howard, I will check this. I did go into the router and reserve the MAC address but same issue. The wn2500rp (extender / switch) is new so just getting into those settings as it looks like it definitely is the culprit not allowing the IP address transfer. I do know there are not any adjustments to lease dhcp lease time, etc. What I don't understand is why the other devices plugged into the extender get ip addresses ok. I did have another wireless bridge in this spot but very very slow, it was a DD-WRT converted linksys router, this handled the IP address assignment fine to the flex but not good at all if remote is an option. Anyway, I appreciate the help very much with this as I am not well versed when it comes to networking issues as it is easily seen.

73's
Joe
WD5Y
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Jim Gilliam

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I am not sure I understand your lash up...Are you wirelessly connecting your switch to your router? You are using the switch to connect to the Flex?


Jim, K6QE

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Joe WD5Y

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I have a netgear router (r7000) then the wireless extender (wn2500rp - access point) with wired connections that the flex and pc plugs into. The PC gets IP address fine. If I could hardwire into the router I would definitely bypass all of this but there is no way, has to be wireless in my situation.

73's
Joe
WD5Y
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Jim Gilliam

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Walt - KZ1F

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It sounds like you have multiple dhcp services.
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Joe WD5Y

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I did try connecting the PC and radio into a hub and the hub connected into the extender, same issue, very confusing. I was thinking that the PC would see the radio through the hub as well.

Joe
WD5Y
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Phil m0vse

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Switches 'are' bridges, that is what differentiates them from hubs (not that you really see network hubs anymore). A bridge/switch is a device that maintains a table of what MAC addresses are connected to what port and only forward packets to the port that they know contains the device with the correct MAC address (other than broadcast traffic which is forwarded to all ports).

Back to the original problem, I suspect that the wireless bridge is filtering broadcast traffic between the wired and wireless domains or is simply not forwarding them fast enough. Once it has the MAC address in its lookup table, it is likely then successfully forwarding the DHCP broadcast (and the response from the DHCP server) but this only happens if the Flex is rebooted. I wonder how many retries the Flex will make to get an IP address before it gives-up and uses a link-local address? Windows will keep trying to get an IP address which is probably why the PC is working but I guess the Flex doesn't?

My personal take is that Wireless bridges are second only to powerline adaptors in devices that I don't want to see on a network but I guess that isn't what you want to hear?

73 Phil
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Joe WD5Y

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I with you on that but for me it is a necessary evil hi hi. I have a ddwrt converted router (bridge) that works but very very slow, that is why I went with the newer extender. It sounds like the flex retry ability of the IP address may be the problem, I may be in trouble with the new extender as well. Not sure but what would happen if I had the PC and flex connected to a hub and the hub connected to the extender but powered the extender up after the hub? Probably a dumb question but asked anyway.

73's
Joe
WD5Y
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Jim Gilliam

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Have you tried hooking everything up temporarily in the proximity of the router to be sure it is not quality of signal that is causing the problem.
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Joe WD5Y

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No not yet but will give it a try also.

Thanks,
Joe
WD5Y