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Antares8001

PC can't connect to the internet

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Posted · Original PosterOP

Ok, recently a friend asked me if I could help him because he was having some issues with his PC.

The PC was unable to connect to the his dorms wireless network, I suspected the issue to be on the driver side or perhaps the cheap USB wireless dongle that he used had some issues. 

So I made sure drivers were in order and tried again... which didn't work, then I added a PCIe wireless adapter card, which also didn't work even though other PCIe devices work perfectly fine. 

Weirdly enough it also won't connect via a LAN cable. I also tried an SSD with different windows and Linux installs, in case there were some issues with Windows and  then updated the bios, because at that point why the hell not. We also tried all of the above with different networks. This leads me to suspect that the issue somehow lies with the mainboard, however I have never encountered an otherwise working mainboard causing connection errors, especially since neither USB or PCIe adapters seem to work in spite of the board working perfectly with other USB and PCIe devices. The mainboard is a proprietary ACER LGA 1150 board, so it wouldn't be the end of the world to replace it but I would still like to find a fix if possible. I should probably also clarify that the PC recognizes devices and finds networks but can't connect to them. After scouring the internet for a bit also didn't provide me with any answers I thought I'd ask here.

 


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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If you open up a wireless hotspot with your phone, does that work?

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Posted · Original PosterOP
1 minute ago, Benji said:

If you open up a wireless hotspot with your phone, does that work?

I also tried that but ran into the same issues I had when I tried to connect to a regular wireless network


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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Kind of sounds like messed-up Windows settings. I assume you are running Windows 10? Did you try resetting it to factory defaults? Because the likelihood that two network adapters are dead is not high. But other devices do work on the network, right?

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Posted · Original PosterOP
Just now, Benji said:

Kind of sounds like messed-up Windows settings. I assume you are running Windows 10? Did you try resetting it to factory defaults? Because the likelihood that two network adapters are dead is not high. But other devices do work on the network, right?

As I said I already replaced the OS drive with a different one that had a fresh windows 10 install and I even gave Ubuntu a shot. I also verified both network adapters on my PC and other devices seem to work on the network.


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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In that case it really starts to sound like an Acer thing, I have never experienced such behaviour before. How old is this Acer pre-built?

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Posted · Original PosterOP

He said he bought it in late 2014 or early 2015, 


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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Posted · Original PosterOP

it's a TC-605


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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Lets troubleshoot one issue at a time. First issue is you cannot connect to the network using the cable and ethernet port. What happens when you connect the ethernet wire to the Laptop.

1. Does it recognize the cable, give the laptop and IP

2. If it does give you an IP is the gateway ip also populated

3. If gateway ip is populated can you ping the gateway/main router from you laptop

4. If so can you access the Admin page of the main router from your laptop.

 

If your answer is yes to all of the above then there is no issue with the port.

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Posted · Original PosterOP
18 minutes ago, Jinu said:

Lets troubleshoot one issue at a time. First issue is you cannot connect to the network using the cable and ethernet port. What happens when you connect the ethernet wire to the Laptop.

1. Does it recognize the cable, give the laptop and IP

2. If it does give you an IP is the gateway ip also populated

3. If gateway ip is populated can you ping the gateway/main router from you laptop

4. If so can you access the Admin page of the main router from your laptop.

 

If your answer is yes to all of the above then there is no issue with the port.

I am sorry I am a bit confused, now I'll freely admit I am not nearly as experienced with network issues as I am in other PC related fields but I fail to see how this would verify the ethernet port of his PC.


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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My apologies. I mean to say do this on his computer and not laptop. I am assuming from your description that when the cable is connected to the PC also he cannot connect to the network.

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Posted · Original PosterOP

Oh ok, well only the IPv4 Ip adress is given, while the gateway IP is blank. The Pc also doesn't show up in the router settings.


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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What happens when you manually enter the appropriate settings (DNS and Gateway)? Does it work then? When it gets an IP address it usually should also receive the DNS and Gateway settings. In your case the DHCP does not seem to work appropriately. Also, the router must be aware of it as you have gotten an IPv4 address somehow.

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Posted · Original PosterOP

OK so far nothing has worked, and I still had an old 1150 system lying around, so i've decided so just switch out the boards, or rather every other component, seeing as both were proprietary boards that wouldn't fit into each other's cases. Wouldn't have been a big issue to leave it like that because my 1150 system was only used for emulation anyway, so it didn't necessarily need internet. However now it turns out that apparently the RAM was somehow causing issues with the acer board??? For some reason now that the board has different RAM it'll connect to the internet just fine and the issue reappeared the second I reinstalled the old RAM. While that makes absolutely no sense to me, as of now both machines can connect to the internet without problems and I have decided to just leave them like that, because frankly the board really isn't worth the headache at this point. But thanks for everyone's suggestions.


PC:    CPU: Threadripper 2950x @4.25Ghz  GPU: Gigabyte GTX 1080 SLI   I   COOLING: Noctua NH-U14S TR4-SP3   I   RAM: 32GB 3200Mhz   I   

SSD: 2.5TB NVME; 1.5TB SATA   I   HDD: 12TB (3x4TB WD) I   PSU: Bequiet Straight Power 11 1000W   I    Case: Cooler Master H500 Mesh

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