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Re: Can surf the internet, but not my home network...

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On 9/15/21 7:41 AM, nimrod wrote:
> Hi,
> 
> my devices (pc, laptops, smartphone) all can surf the internet without
> problems. So one would say that the router is working properly.
> 
> But computer A cannot access computer B via SSH as it's alwais being
> doing for years, and viceversa. They cannot even ping each other. No
> firewall on them at all.
> 
> Computer A can ping computer C instead, and viceversa. No PC can access
> the printer website nor print any more. Nor can I scan documents as I
> could before, because the scanner is part of the printer.
> 
> All the devices are listed in the router's web administrative
> interface, but some have a green dot, some other a grey dot, apparently
> without a meaning, because some active device has the grey dot and some
> the green dot though it's even turned off.
> 
> Just one PC is running Windows, all the other three are running Debian.
> 
> Another interesting fact is that I can print documents with my
> smartphone accessing the printer via DirectWiFi. If I understand it
> right, DirectWiFi doesn't make use of the router.
> 
> And here is the router info:
> Product Vendor: Technicolor
> Product Name: AGHP
> Serial Number: CP1911TAAWE
> Software Version: 19.4
> 
> Such devices, usually distributed by TIM in Italy, don't seem the most
> performing on the market, but it's still very difficult to use another
> one with most italian providers. Otherwise I would change it
> immediately with a better and customizable one.
> 
> I really cannot figure out what's happening.
> 
> Any hint would be very much appreciated.


Please install Cygwin on Windows:

     https://www.cygwin.com/

This will give you a Bash shell.  You can install additional software, 
such as an SSH client and an SSH server (the latter may require opening 
port 22 in the Windows firewall).


Please use a Bash shell and add the following line to ".profile" or 
".bash_profile":

     export PS1='\n\D{%Y-%m-%d %H:%M:%S} '${USER}'@\h \w\n\$ '


The best way to convey system administration information is to cut and 
paste complete console stanzas -- prompt, command entered, and output 
displayed.


A still camera and/or video camera are useful for capturing screens when 
a terminal is unavailable, such as POST messages, CMOS setup programs, 
and GUI interfaces.  Transcribe to plain test for post, or put the 
photos/ video on a file sharing site.


It is wise to delete sensitive information from console stanzas before 
posting on the Internet.  Please denote deletions with "...", "<snip>", 
"********', "REDACTED, etc..


The following stanza is a good way to start a conversation about Debian:

2021-09-15 12:33:02 dpchrist@dipsy ~
$ cat /etc/debian_version ; uname -a
10.10
Linux dipsy 4.19.0-17-amd64 #1 SMP Debian 4.19.194-3 (2021-07-18) x86_64 
GNU/Linux


The following stanza is a good way to start a conversation about Windows:

2021-09-15 12:37:52 dpchrist@win7 ~
$ uname -a
CYGWIN_NT-6.1 win7 3.1.7(0.340/5/3) 2020-08-22 17:48 x86_64 Cygwin


Then add stanzas that demonstrate whatever issue you are having.


David

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Thread

Can surf the internet, but not my home network... nimrod <nimrod@virgilio.it> - 2021-09-15 17:10 +0200
  Re: Can surf the internet, but not my home network... IL Ka <kazakevichilya@gmail.com> - 2021-09-15 17:20 +0200
  Re: Can surf the internet, but not my home network... Hans <hans.ullrich@loop.de> - 2021-09-15 17:50 +0200
    Re: Can surf the internet, but not my home network... IL Ka <kazakevichilya@gmail.com> - 2021-09-15 18:00 +0200
    Re: Can surf the internet, but not my home network... Andrei POPESCU <andreimpopescu@gmail.com> - 2021-09-16 09:50 +0200
      Re: Can surf the internet, but not my home network... David Christensen <dpchrist@holgerdanske.com> - 2021-09-16 20:20 +0200
        Re: (unable to start a new discussion) Re: Can surf the internet,  but not my home network... Greg Wooledge <greg@wooledge.org> - 2021-09-17 01:00 +0200
        Re: Can surf the internet, but not my home network... Andrei POPESCU <andreimpopescu@gmail.com> - 2021-09-17 01:10 +0200
        Re: (unable to start a new discussion) Re: Can surf the internet,  but not my home network... Charles Curley <charlescurley@charlescurley.com> - 2021-09-17 06:20 +0200
          Re: (unable to start a new discussion) Re: Can surf the internet,  but not my home network... <tomas@tuxteam.de> - 2021-09-17 08:30 +0200
            Correction [was: unable to start a new discussion] <tomas@tuxteam.de> - 2021-09-17 08:30 +0200
          Re: (unable to start a new discussion) Re: Can surf the internet,  but not my home network... Brian <ad44@cityscape.co.uk> - 2021-09-17 10:50 +0200
            Re: (unable to start a new discussion) Re: Can surf the internet, but not my home network... Gene Heskett <gheskett@shentel.net> - 2021-09-17 13:10 +0200
              Re: (unable to start a new discussion) Re: Can surf the internet, but not my home network... Stefan Monnier <monnier@iro.umontreal.ca> - 2021-09-17 15:20 +0200
                Re: (unable to start a new discussion) Re: Can surf the internet, but not my home network... Gene Heskett <gheskett@shentel.net> - 2021-09-17 16:40 +0200
            Re: (unable to start a new discussion) Re: Can surf the internet, but  not my home network... David Christensen <dpchrist@holgerdanske.com> - 2021-09-17 21:30 +0200
              New thread vs. changed Subject line (was Re: (unable to start a new  discussion) Re: Can surf the internet, but not my home network...) The Wanderer <wanderer@fastmail.fm> - 2021-09-17 21:50 +0200
              Starting a new thread by replying [was: (unable to start a new  discussion)...] but not my home network... <tomas@tuxteam.de> - 2021-09-17 22:10 +0200
  Re: Can surf the internet, but not my home network... David Christensen <dpchrist@holgerdanske.com> - 2021-09-15 22:10 +0200

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