MacBook / OSX can't access router/gateway web admin page - but other devices in same network can

Problem

I’m trying to access my router web admin page, http://192.168.0.1/, from my MacBook. I can easily access the web admin page from other devices, like my Windows machine and my iPhone. But not from the MacBook.

All devices are on the same local wifi network, and there is no network filters/whitelist/blacklist on the router.

Setup

MacBook with OSX

This machine can’t access the web admin page via Chrome/Firefox/Safari

Firewall is disabled
Bitdefender Antivirus is disabled
I have tried Chrome/Firefox/Safari

OSX Version:    10.14.6 
Network:        DHCP

IP:             192.168.0.118
Subnet Mask:    255.255.255.0
Gateway/Router: 192.168.0.1

For some initial debugging:

nc -v 192.168.0.1 80 
> nc: connectx to 192.168.0.1 port 80 (tcp) failed: Operation timed out

ping 192.168.0.1                          
> PING 192.168.0.1 (192.168.0.1): 56 data bytes
> 64 bytes from 192.168.0.1: icmp_seq=0 ttl=64 time=2.120 ms

curl http://192.168.0.1/
> curl: (7) Failed to connect to 192.168.0.1 port 80: Operation timed out

PC with Windows

This machine can access the web admin page via Chrome/Firefox

Win Version:    10.1903
Network:        DHCP

IP:             192.168.0.115
Subnet Mask:    255.255.255.0
Gateway/Router: 192.168.0.1

For some initial debugging:

nc -v 192.168.0.1 80
Connection to 192.168.0.1 80 port [tcp/http] succeeded!

ping 192.168.0.1
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=1.70 ms

curl http://192.168.0.1/
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML ...

iPhone

This machine can access the web admin page via Safari/Chrome

Anyone has any idea what's preventing the MacBook from viewing the page?

user4029736

Posted 2019-10-23T08:37:13.750

Reputation: 11

Some system-wide (http) proxy maybe? – Tom Yan – 2019-10-24T06:52:46.137

No, no proxies configured – user4029736 – 2019-10-25T09:44:19.557