Windows 10: can no longer access router admin page from certain pc

i can't access my router login page from any browser after installing iis a few months ago, typing 192.168.1.1 would take me to the iis page only. after uninstalling iis i still can't access the admin page site can't be reached. the router admin page can be access perfectly from any other device on the network and can even be accessed on multiple vms running on the affected computer. i've cleared cache in all browsers, all of the "reset winsock, etc" commands i've seen on google and nothing works. hosts file looks good also.using wireshark with icmp filter i get no captures when trying to pi

:)

 

Unable to access the Admin page of my modem router since latest Windows 10 update

Since I updated the latest Win 10 update, I am unable to access my modem router's admin page. I previously never had any problems logging to the admin page. I took the extra step of uninstalling my antivirus/firewall program and logging in to no effect.
I can access the internet and have no issues in viewing any website. The only time I have been able to access the modem router admin page since the last Windows 10 update is when I start windows in Safe Mode with networking. Refer message below:

Your Internet access is blocked
Firewall or antivirus software may have blocked the connection.

Try:

• Checking the connection
• Checking firewall and antivirus configurations
• Running Windows Network Diagnostics

ERR_NETWORK_ACCESS_DENIED

Check your Internet connection
Check any cables and reboot any routers, modems or other network devices you may be using.

Allow Chrome to access the network in your firewall or antivirus settings.

If it is already listed as a program allowed to access the network, try removing it from the list and adding it again.

 

Unable to access my router admin page

Hi there everyone,

I have an ASUS RT-AX86U router for one and half year now. I've been using it always with the same setup - laptop connected via ethernet cable - and I was always able to access its admin page via browser.

Yesterday, I connected for the first time an HDD to the router, so I can use it as shared drive. So far so good, my TV can see it on the network, my laptop and other family members as well.

While on my laptop, I opened the file explorer and went to Network and clicked on the new device. Some Windows info came up that I accidentally clicked on it. (And I think this was THE thing.)

So, what now?

When I try to access my router admin page via browser, I can't access it any longer. ��‍♂️

Here's the browsers' message:





Image 1 - Brave browser





Image 2 - Edge browser

I did some troubleshooting to try to isolate the problem:

• I can access the router via browser from other devices;
  
• I can access the router via "Asus router" mobile app;
  
• I can ping the router successfully on the command line;
  

Interesting one: If I switch my home network profile from Private to Public, I can access the router from my laptop. But this is not a desirable solution.

So, I contacted the ASUS support just to confirm my guess that is not a router issue. The agent that assisted me, after checking that I can access the page from other devices on the network, told me that this should be a misconfiguration on my laptop.

I don't know what I've done.

I need some help!

Thanks in advance!

I use:

- Dell XPS 13 9310

- Win 10 Business v21H2, OS build 19044.2006, Exp. Pack 120.2212.4180.0

- Brave browser

[UPDATE]

My laptop is a company laptop - I login with my company credentials.

 

Unable to access router's configuration page (192.168.1.1)

If it is one of those lovely TP-Link bugs, then all bets are off. However, try some basic troubleshooting first:

• Disconnect the WAN-side cable (phone line or ethernet, assuming it is either of these).
  
• Also applies to LAN-side access: Make sure you access it with ethernet cable and isolate the router to just the one ethernet cable and client PC that you're trying to access the config page with.
  
• Do all this before booting the router to make sure the boot is 'clean'.
  Do you see the same issue?
  

If not, it suggests that something is interfering when other connections (WAN, LAN, WiFi) are plugged-in/active.

This may be at worst, a specific attacker, or otherwise anything of: some buggy process on any connected device, or some network connection type (overloading, bug, etc).
As suggested, the router running out of RAM (and a bug in handling this condition) is a common problem, especially under heavy load.

Also, check that there isn't some sort of firewall setting on the router (or even your PC) blocking your client IP from accessing the web interface. Some routers support this.

I would strongly suggest to always disable uPnP as mligor has suggested.
It is way too much of a security risk and if you need to open ports instead of uPnP's automated method, do it manually and learn what this entails.
Also, disable remote administration and set a strong admin password.