Direct network connection between MacBook and a PC with a switch

I have a MacBook in my home and a PC. There is a router connected to the internet in a house nearby. A cable comes from there to my house. At my house I have an 8-port 100 Mb switch. The PC is connected to the switch with a cable. There is a DLink 2000AP connected to the switch, so I am connected to the network wirelessly. All the cabling in my house is good, I mean both the PC and the wifi access point have got very good cable connecting to the switch. But the switch is connected to the router in the other house with a very bad cable (I suspect it is just some kind of phone cable). this cable seems o be enough for the internet but not for 100 Mb network.
Now I have a big hard drive connected to the PC, I made it shared, so I can mount it on my MacBook. But the problem is that the speed of transferring data between the Macbook and PC is really low (around 0.5 MB/s). I suspect that it is because when sending data the Mac sends it first to the router which has got such bad cable and then only to the PC. In this way the data comes through the bad cable twice. But if I could set it up in such a way that the data goes only through the switch (without going to the router), then no data would go throught the bad cables to the router and everything will be very fast. so, my humble question would be whether it is possible to say to computers or router that the info should be set via switch and not the router.
Thanks a lot for your help.

You are correct Since you do not have your wireless network set up for a machine-to-machine connection, all data is going to your wireless access point, then up the bad cable to the router, back down the bad cable to your other computer. To quote an old cliche, this chain is only as strong as its weakest link.
You can connect, via ethernet cables, the Mac and the PC directly through a switch or hub. This should by-pass the need of the data to go up through the router. However, my experience is that sometimes the computers can get confused with this type of setup, not knowing what route to take.
Maybe someone else has a better solution, other than replacing the line to the router with a much better cable or a point-to-point wireless solution.
Jeff

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Thx for quick response, below some "answers".
It helps if you spell out a few things.
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Who is the ISP? And what model is the modem provided? Is this dsl or cable or fibre or something else? *** ADSL
- TC (1st generation from 2008) connected to ISP modem via ethernet cable (TC port: the one next to USB port with roughly an O-symbol). Is this the correct port to use?
The answer depends.. is the ISP modem also a router? Is the TC setup to bridge or route? *** Yes, the modem is also a wirelss & ethernet router. *** I do not know if the TC is bridge or route, how can I see that?
- Our ISP provider only supports 5 IP addresses and in our network we also have PCs/mobiles occupying IP addresses.
Here is where I am getting confused actually.. Most ISP supply just 1 IP.. the router translates that single public IP to all the computer and devices on your network which run on a private IP network.
Is the ISP giving you 5 public addresses?? Are they ipv4 or ipv6? Setting up blocks of ip addresses is more a business setup.. where multiple devices need direct internet access eg servers.. without being hidden behind a NAT router.
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*** Sorry for confusion. It is likely that the ISP provider gives 1 IP address, and that the modem generates up to 5 IP addresses. It is most certainly only a standard private setup, no business setup.
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- Switch off wireless function on TC.
- Use the TC to provide IP addresses for both the MacBook and MacMini in order to leave the other IP addresses for the PCs/mobiles.
What IP addresses are you getting now?
If you plug ethernet to the macbook and mini now.. and turn off wireless, what IP address are they getting??
If the TC is in router mode they should get 10.0.1.x IP and be able to ping and share with each other.. without needing to do anything.
*** I am now connected to the modem (wireless), as I cannot connect through the ethernet cable.

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21.10.14 17:12:46,786 Contacts[532]: Error saving address book: Error Domain=NSCocoaErrorDomain Code=1560 "Bei der Überprüfung sind mehrere Fehler aufgetreten." [TRANSLATION: "Multiple errors occurred during verification"] UserInfo=0x600002e75500 {NSDetailedErrors=(
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21.10.14 17:46:36,619 uxipm_ui[745]: WARNING: The Gestalt selector gestaltSystemVersion is returning 10.9.0 instead of 10.10.0. Use NSProcessInfo's operatingSystemVersion property to get correct system version number.
Call location:
21.10.14 17:46:36,619 uxipm_ui[745]: 0   CarbonCore                          0x00007fff934f2dc3 ___Gestalt_SystemVersion_block_invoke + 113
21.10.14 17:46:36,620 uxipm_ui[745]: 1   libdispatch.dylib                   0x00007fff92302c13 _dispatch_client_callout + 8
21.10.14 17:46:36,620 uxipm_ui[745]: 2   libdispatch.dylib                   0x00007fff92302b26 dispatch_once_f + 117
21.10.14 17:46:36,620 uxipm_ui[745]: 3   CarbonCore                          0x00007fff9349b4da _Gestalt_SystemVersion + 987
21.10.14 17:46:36,620 uxipm_ui[745]: 4   CarbonCore                          0x00007fff9349b0c7 Gestalt + 144
21.10.14 17:46:36,620 uxipm_ui[745]: 5   QtCore                              0x000000010c089496 _ZN9QInternal16registerCallbackENS_8CallbackEPFbPPvE + 194
21.10.14 17:46:36,620 uxipm_ui[745]: 6   ???                                 0x00007fff64845ceb 0x0 + 140734879784171
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21.10.14 17:46:35,098 CoreServicesUIAgent[322]: unexpected message <OS_xpc_error: <error: 0x7fff79579c60> { count = 1, contents =
"XPCErrorDescription" => <string: 0x7fff79579f70> { length = 18, contents = "Connection invalid" }
}>
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21.10.14 17:42:42,115 com.apple.iCloudHelper[737]: objc[737]: Class FALogging is implemented in both /System/Library/PrivateFrameworks/FamilyCircle.framework/Versions/A/FamilyCircl e and /System/Library/PrivateFrameworks/FamilyNotification.framework/Versions/A/Famil yNotification. One of the two will be used. Which one is undefined.
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I have tried the troubleshooting listed here: Get help using iCloud Contacts (i.e. disabled and reenabled the sycn through iCloud in Preferences > iCloud and checked the login information etc)
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Any help is greatly appreciated!

I don't know if this is applicable for you, but this solved it for me.
My initial situation was the following, Ipad, Iphone and iMac where syncing well. But not my Macbook Pro. So I did this Get help using iCloud Contacts - Apple Support and this Sync Services: Advanced troubleshooting for contact and calendar syncing - Apple Support . As result all my contacts, even the view I had where gone on my macbook. I tried rebooting and restartting but nothing helped.
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 In Memory of Steve Jobs 

Direct network connection between MacBook and a PC with a switch

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