Hopefully this is the right place to post this problem that I have, I feel like it falls under general networking issues. Please forgive me if I've posted in the wrong place though.
Long story so please bear with me while I cover all the detail I can.
I've had this issue for going on 3 years now, and its been driving me insane. I just can't figure out what's causing this to occur.
Basically, my PC will randomly/intermittently lose its connection to my local network. I've established its definitely the network and not just the internet through steps explained further down. This seems to happen for no apparent reason that I can spot, and at completely random times of the day. It can happen multiple times a day, not at all, or any variation thereof. When it does happen, it can cause me to remain disconnected anywhere from a few minutes up to multiple days.
Strangest thing is, it doesn't matter whether I'm on a wired ethernet, or wireless connection, it occurs on both.
Only my PC is affected by this issue. There is multiple other devices on the network; phones, tablets, laptops, PC's, consoles, chromecast devices etc. that all work fine. All these other devices work perfectly while my PC is having this issue. I've also brought in laptops from work etc. to be thoroughly sure and they definitely work with no similar issues on both the wireless and ethernet connections.
To give you some background, this started shortly after I moved into a flat with 5 others, (so there's always been multiple other devices working on the network since I've had this problem), and has also followed me into a different rental house with 2 of the same flatmates.
It started happening on Windows 7, and has followed me across 8.1 and on to Windows 10 after I upgraded at the start of 2016.
Not only has the OS changed, this year I've also upgraded my motherboard, CPU, GPU and wireless NIC, so it's almost as if the PC is a completely different unit, and it still occurs.
I've tried for 3 years to fix this, and have tried a large number of different networking "fixes" that I've seen on the internet, but nothing has worked so far.
Things I've experienced and noticed about the issue:
- Most times the only way to tell something's wrong is to do a ping -t, which shows time outs (I've got screenshots of this happening if anyone thinks it would be useful to see)
- Can't ping the router when it does happen, i.e. local connection/network drop rather than just the internet.
- Can't ping Google's DNS when it drops out (126.96.36.199)
- Always show's DNS client errors in Event Viewer. "Event ID 1014 - Name resolution for the name **** timed out after none of the configured DNS servers responded."
- Sometimes Windows will have the warning icon over network adapter in task bar. Most of the time it doesn't.
- Windows diagnostics never solves issue. Usually shows the below message:
"Your broadband modem is experiencing connectivity issues
Restart your broadband modem:
1. Unplug or turn off the modem
2. After all the lights on the modem are off wait at least 10 seconds
3. Turn the modem on or plug it back into the power outlet
The connection between your access point, router or cable modem and the internet is broken."
I also get the diagnosis:
"The DNS server isn't responding
Windows can't communicate with the device or resource (primary DNS server)"
- Or more often that not Windows just won't show as anything being wrong with the connection.
- When it cuts out Chrome will show:
"There is no Internet connection
Checking the network cables, modem, and router
Reconnecting to Wi-Fi
Running Windows Network Diagnostics
"This site can’t be reached
www.google.co.nz’s server DNS address could not be found.
Try running Windows Network Diagnostics.
- There's nothing obviously wrong with the modem as far as I can tell as all other users and my other devices stay connected while my PC cuts out.
- Also happens in safe mode with networking, maybe it's something on the network/router conflicting with my PC?
Possibly its some kind of device conflict? Recently my flatmates went away for a week and I had uninterrupted internet. As soon as they came back it started happened again.
Weirdly though, it can happen to me at like 2am when they're not actively using devices (that I know of) and my PC will still the issue.
Some of the things I've tried (none of these have fixed the issue):
- re-installed Windows 7 completely
- re-installed Windows 10 completely
- not signed in to PC with a Windows account
- turning off/disabling all Windows Firewall's doesn't help.
- sfc /scannow shows no errors
- local hosts file works correctly. Manually overwrote Google to go to 10.0.0.1, and it was able to recognise that.
- Changing to Google's DNS settings doesn't help.
- Have uninstalled and reinstalled network adapters multiple times.
- Pretty sure I've tried booting with services disabled etc. but I can't remember the specifics so I'm open to trying anything again.
- TCP/IP reset doesn't fix
- Neither does: ipconfig /flushdns, ipconfig /release, ipconfig /renew
- I have wireshark installed and have attempted to decipher the read outs, but my networking skills aren't top notch. I can't work out what's going on with that unfortunately.
I've been trawling through solutions on the internet about this ever since its been happening with no success so far.
I've attached the mini tool box output to my post in case its needed. This was run while the network was working. Obviously this shows some errors if I run it while disconnected. I can upload this one too if anyone thinks it will be useful.
This issue has literally driven me insane. Help me BleepingComputer community! You're my only hope!
Thanks in advance