Author Topic: Internet question SOLVED  (Read 358 times)

Offline dougmack

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Internet question SOLVED
« on: February 22, 2013, 11:54:09 PM »
Not PCLINUX at all, but the experts are here!  Gibson Research said to set router to disallow UPnP. so I did, a couple days ago.  It was working OK,
but tonite I was having a lot of trouble getting past the router to the Internet. PCLOS says network is up, but can't ping the Internet server.  Network
really was up--could print. (Sometimes Internet works for a few minutes, then dies.)  
I connected an old router--probably has UPnP enabled, apparently they come that way--and right now I'm on line.  I need an answer from someone
other than Gibson, who says that UPnP is asking for unwanted inputs and should always be turned off.  So is he right, and my router is dying, or
what? I don't have any real tools to troubleshoot this stuff, at least that I'm aware of. (Just realized I can take antennas off, and eliminate RFI possibilty.)

Or does the Motorola cable modem, SBV5222, need UPnP or is it flaky, or what? I've tried to troubleshoot this, by turning things off, then on again,
disconnecting pieces of network, etc., but have not learned anything.  
Network consists of 3 computers and 1 printer, at the moment. (It should really have one more printer on it, but that's been down for a while.)
The computers--Gigabye 64-bit mobo running Win7, Foxconn 64-biot mobo running PCLOS, and Dell 32-bit laptop running PCLOS. The printer:
Epson WP-4530, hard wired Ethernet. Router (when trouble started) D-Link DIR-632 8-port (need 5 ports when the other printer is on line).
Am not using any wireless capability, altho wireless interference is not ruled out.  Present substitute router is TrendNet TE100-P21, also with
wireless antennas.
Any suggestions appreciated. --doug
« Last Edit: February 27, 2013, 10:32:37 PM by dougmack »
Blessed are the peacemakers...for they shall be shot at from both sides.  A. M. Greeley

Online Old-Polack

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Re: Internet question
« Reply #1 on: February 23, 2013, 12:17:02 AM »
Not PCLINUX at all, but the experts are here!  Gibson Research said to set router to disallow UPnP. so I did, a couple days ago.  It was working OK,
but tonite I was having a lot of trouble getting past the router to the Internet. PCLOS says network is up, but can't ping the Internet server.  Network
really was up--could print. (Sometimes Internet works for a few minutes, then dies.)  
I connected an old router--probably has UPnP enabled, apparently they come that way--and right now I'm on line.  I need an answer from someone
other than Gibson, who says that UPnP is asking for unwanted inputs and should always be turned off.  So is he right, and my router is dying, or
what? I don't have any real tools to troubleshoot this stuff, at least that I'm aware of. (Just realized I can take antennas off, and eliminate RFI possibilty.)

Or does the Motorola cable modem, SBV5222, need UPnP or is it flaky, or what? I've tried to troubleshoot this, by turning things off, then on again,
disconnecting pieces of network, etc., but have not learned anything.  
Network consists of 3 computers and 1 printer, at the moment. (It should really have one more printer on it, but that's been down for a while.)
The computers--Gigabye 64-bit mobo running Win7, Foxconn 64-biot mobo running PCLOS, and Dell 32-bit laptop running PCLOS. The printer:
Epson WP-4530, hard wired Ethernet. Router (when trouble started) D-Link DIR-632 8-port (need 5 ports when the other printer is on line).
Am not using any wireless capability, altho wireless interference is not ruled out.  Present substitute router is TrendNet TE100-P21, also with
wireless antennas.
Any suggestions appreciated. --doug

As a starting point, disconnect both power inputs from both the router and modem, for about 20 seconds, then reconnect them. Wait about a minute and in a terminal try to ping google.com;

[prompt ~]$ ping -c3 google.com                                  <Enter>

You should get results like these;

[polack@fatman ~]$ ping -c3 google.com
PING google.com (74.125.225.105) 56(84) bytes of data.
64 bytes from ord08s08-in-f9.1e100.net (74.125.225.105): icmp_req=1 ttl=56 time=13.4 ms
64 bytes from ord08s08-in-f9.1e100.net (74.125.225.105): icmp_req=2 ttl=56 time=12.9 ms
64 bytes from ord08s08-in-f9.1e100.net (74.125.225.105): icmp_req=3 ttl=56 time=14.2 ms

--- google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 12.928/13.539/14.261/0.557 ms
[polack@fatman ~]$

Post your results.
Old-Polack

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Offline dougmack

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Re: Internet question
« Reply #2 on: February 23, 2013, 12:42:57 AM »
I went thru the disconnect and reconnect power routines, and attempted to ping the Internet server (optonline.net)--quite a few times, with and without
one or more computers turned on at the time. I will go back and connect the D-Link modem tomorrow, and repeat with your suggestion to ping
Google, but I don't expect better results. I will also disconnect the antennas, in case I have RFI. (Not using the wireless capability at the moment.)
Going to bed now--it's 2:40 AM.

Would appreciate your input on UPnP.

Thanx for your interest.  --doug
Blessed are the peacemakers...for they shall be shot at from both sides.  A. M. Greeley

Online Old-Polack

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Re: Internet question
« Reply #3 on: February 23, 2013, 01:04:11 AM »
I went thru the disconnect and reconnect power routines, and attempted to ping the Internet server (optonline.net)--quite a few times, with and without
one or more computers turned on at the time. I will go back and connect the D-Link modem tomorrow, and repeat with your suggestion to ping
Google, but I don't expect better results. I will also disconnect the antennas, in case I have RFI. (Not using the wireless capability at the moment.)
Going to bed now--it's 2:40 AM.

Would appreciate your input on UPnP.

Thanx for your interest.  --doug

I have UPnP disabled.
Old-Polack

Of what use be there for joy, if not for the sharing thereof?



Lest we forget...

Offline dougmack

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Re: Internet question
« Reply #4 on: February 27, 2013, 10:32:08 PM »
Have waited a few days to see what would happen. Right after the last answer, I reset the router to factory-new, via the hardware switch, and then set it up again, including
turning UPnP off.  It has been working fine since then, and I have turned the machines off and on a number of times. So I imagine that some kind of electrical disturbance
caused the router to malfunction.  If anyone is following this, I will mention that even tho the network (excluding the Internet) was functioning, the url assigned to this
computer, instead of the usual 192.168.0.100, the last quad was about 14x--way above anything necessary for this small network.

So thanx for the information. It's disconcerting when you make a minor change and things go to pieces--the obvious conclusion, here, was the wrong one, and I'm glad
of the input to let me believe that.

SOLVED.
Blessed are the peacemakers...for they shall be shot at from both sides.  A. M. Greeley