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Windows 7: Unable to connect to one PC, but can the other way

17 May 2014   #1
DanielPlumb

Windows 7 Ultimate x64
 
 
Unable to connect to one PC, but can the other way

Good Afternoon all, I hope you're enjoying this beautiful weather!! Well, you won't be able to for another few minutes.

I'm here because the web is useless and despite me searching through pages of forum threads and Google searches, I have found nothing that relates to my problem exactly.

Here is a (very aesthetically-pleasing, if I do say so myself!) diagram of my setup of computers around my home:



PC 2 is getting its internet through ICS from PC 1. This is done in the diagram through a yellow line (an ethernet / CAT5 cable) - works fine. The red lines in the diagram represent any wireless connections amongst the (can I call it a network yet? )

Now, my whole intention here is for the computers to happilly share their files over the network, without any of this homegroup hassle - as it's not really needed afaik?

All of the computers are visible on eachother's 'Network' page in W7.



Now, here is what can access what:

When choosing another PC from PC-1:
  • I can access PC-2 (Daniel-PC) and its files fine.
  • I can access laptop (MANDY-PC) and its files fine.

When choosing another PC from PC-2:
  • I cannot access PC-1 (Daniel-GPC). I receive the inevitable message of:


  • I can access laptop (MANDY-PC) and its files fine.

When choosing another PC from LAPTOP (MANDY-PC):
  • I can access PC-1 (Daniel-GPC) and its files fine.
  • I can access PC-2 (Daniel-PC) and its files fine.

The part in red that I've highlighted above is the problem here. The fact that I can access PC1 -> PC2, but I cannot vice versa PC2 -> PC1. Yet internet connection sharing among both PCs works fine... I'm bewildered.

Here is another pretty diagram to put the above into a visual concept:



All 3 computers have the same settings in advanced network settings (i.e. network discovery is on, password file protecting is off, file sharing on etc...) They're also all connected to the same workgroup of 'WORKGROUP'.

PC-1: Windows 7 Ultimate x64
PC-2: Windows 7 Home x64
LAPTOP: Windows 7 Home x64

Ultimately there is nothing wrong with the LAPTOP's connections, I was merely adding it in to show that I can access PC-1 from somewhere.

I've used the 'diagnose' function, gone through and changed permissions, tried a different workgroup name, but nothing at all works.

You are a legend if you can help me with anything to get this working.

Thank you very much.

Daniel


My System SpecsSystem Spec
.
17 May 2014   #2
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Ideally you would place a switch before PC-1 then plug both PC-1 and PC-2 into that switch rather than messing with ICS because ICS appears to be the problem in this case although that is hard to say for certain.

Homegroups would be an easier way to go, it's the opposite of a hassle which you are having now.

Besides that you could try adding the credentials from PC-1 to PC-2, via the control panel>credential manager>Windows credentials.

Also be sure and check that the time/date settings are in sync on all machines.
My System SpecsSystem Spec
17 May 2014   #3
DanielPlumb

Windows 7 Ultimate x64
 
 

Hey, thanks for your reply.

Quote   Quote: Originally Posted by chev65 View Post
Ideally you would place a switch before PC-1 then plug both PC-1 and PC-2 into that switch rather than messing with ICS because ICS appears to be the problem in this case although that is hard to say for certain.
By a "switch", do you mean something like this?

Quote   Quote: Originally Posted by chev65 View Post
Homegroups would be an easier way to go, it's the opposite of a hassle which you are having now.
I can access files as shown in the OP around the network, which leads me to think that a homegroup is not required here.

Quote   Quote: Originally Posted by chev65 View Post
Besides that you could try adding the credentials from PC-1 to PC-2, via the control panel>credential manager>Windows credentials.
Just tried this, though to no avail.

Quote   Quote: Originally Posted by chev65 View Post
Also be sure and check that the time/date settings are in sync on all machines.
There were 2 minutes different between the PC (not sure if that's something crucial enough to have an effect?) though I did sync them both to Window's time servers and nothing worked.
My System SpecsSystem Spec
.

17 May 2014   #4
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

The switch link didn't open up for me but I'm talking about a bog standard network switch, ICS is a pseudo science at best and not known for it's reliability.

You could possibly get around this problem by setting up a Homegroup and seeing if the problem persists but with ICS in the mix it still may not work.
My System SpecsSystem Spec
17 May 2014   #5
DanielPlumb

Windows 7 Ultimate x64
 
 

Yes, it seems as if Misco's website has gone down momentarily. It was this.

What benefits would a switch give me, if I were to implement one?
My System SpecsSystem Spec
17 May 2014   #6
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by DanielPlumb View Post
Yes, it seems as if Misco's website has gone down momentarily. It was this.

What benefits would a switch give me, if I were to implement one?
In this case it would eliminate the need to have ICS which appears to be the cause of the problem.

That switch in the link is a bit outdated, most systems can use 10/100/1000 or Gb connection speeds, this switch can only handle 10/100 speeds, so it's best to find one that can do that.
My System SpecsSystem Spec
17 May 2014   #7
DanielPlumb

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by chev65 View Post
Quote   Quote: Originally Posted by DanielPlumb View Post
Yes, it seems as if Misco's website has gone down momentarily. It was this.

What benefits would a switch give me, if I were to implement one?
In this case it would eliminate the need to have ICS which appears to be the cause of the problem.

That switch in the link is a bit outdated, most systems can use 10/100/1000 or Gb connection speeds, this switch can only handle 10/100 speeds, so it's best to find one that can do that.
So I would get internet on PC-2 through what? Wireless connection? Because I can't plug my router into the switch, as that is downstairs.

And thanks for the heads up, it was the first result tbh. I will try it now without ICS and if it works, then we know what that's down to.
My System SpecsSystem Spec
17 May 2014   #8
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by DanielPlumb View Post
Quote   Quote: Originally Posted by chev65 View Post
Quote   Quote: Originally Posted by DanielPlumb View Post
Yes, it seems as if Misco's website has gone down momentarily. It was this.

What benefits would a switch give me, if I were to implement one?
In this case it would eliminate the need to have ICS which appears to be the cause of the problem.

That switch in the link is a bit outdated, most systems can use 10/100/1000 or Gb connection speeds, this switch can only handle 10/100 speeds, so it's best to find one that can do that.
So I would get internet on PC-2 through what? Wireless connection? Because I can't plug my router into the switch, as that is downstairs.

And thanks for the heads up, it was the first result tbh. I will try it now without ICS and if it works, then we know what that's down to.
I figured that would be the case where it's not so easy to run the cable.

You can test by moving the machine then plugging directly into the router and see if ICS really is the problem or not.
My System SpecsSystem Spec
17 May 2014   #9
DanielPlumb

Windows 7 Ultimate x64
 
 

It appears that disabling ICS has had no effect. I still receive the "Windows cannot access" when trying to get onto PC-1 from PC-2.
My System SpecsSystem Spec
17 May 2014   #10
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Strange problem for sure, normally this type of problem just doesn't occur.

So as to cut the Workgroup out of the picture you should set up a Homegroup and join that Homegroup from all the other PC's using the Homegroup password that you will see when you set it up the first time.
My System SpecsSystem Spec
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 Unable to connect to one PC, but can the other way




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