That's a very good, interesting observation because it seems to suggest that YazFi is doing "something" after installation & initial setup that interferes with the regular Guest Network "Intranet Access" even when that interface is not even enabled in the YazFi configuration file.
In another attempt to figure out what the issue might be, I made some changes in the YazFi shell script, and this latest version is in my GitHub 'develop' branch.
<snip>
Not sure how helpful the following will be as something weird happened with the RT-AC68U when I enabled Intranet access on the Guest Network 1 to do some testing (see Test Two below) and generate a log result per your script. The IP address of the WiFi client changed (see notes below) and from then on in the testing that WiFi client had internet access even though I configured internet access to be blocked initially in the Parental Controls, then after removing that Parental Control setting and installing YazFi then disabling internet access in YazFi. Repeatedly double checked to ensure the WiFi client was connected to the Guest Network 1. WiFi client would complain about no internet access when connected to Guest Network 1 (with internet blocked) yet web browser could access internet. It appears somehow the WiFi client Brave browser was picking up Cellular data connection instead of WiFi connection bypassing the settings. Something that
did not happen in past testing. There are a total of five log files rather than three as I was trying to do more testing.
Click here for the zipped log files.
I can retest to create just three log files with the first of the three tests being just the base Guest Network with internet access enabled for the WiFi client and Intranet access disabled.
The notes of the testing with corresponding log file name included for each of the five tests, WAN address in log files redacted:
Initial Settings:
WPS hard factory reset RT-AC68U router and basic configure (set basic WiFi SSID/password, set admin name & password).
WAN set to Automatic IP.
Enable SSH.
Enable Guest WiFi #1 (2.4Ghz & 5Ghz) and set basic WiFi password.
In Home directory created GetYazFiDebugInfo2.sh, pasted in the script and set permissions on file to 0755.
/home/GetYazFiDebugInfo2.sh
WiFi client (Android Phone) connected to Guest Network #1 2.4Ghz
Windows 11 PC and separate NAS connected to RT-AC68U LAN ports.
Test One - Guest Network Internet Access, Access Intranet Disable:
RT-AC68U: 192.168.1.1
Windows 11 PC: 192.168.1.175
NAS: 192.168.1.99
WiFi Client: 192.168.101.110
LAN PC cannot ping WiFi Client
WiFi Client can access Internet
WiFi Client cannot ping LAN NAS
WiFI Client cannot ping LAN PC
WiFI Client cannot ping Router
WiFi Client cannot access NAS web page
WiFi Client cannot access NAS using SMB
WiFi Client cannot access Router web page
Generated GetYazFiDebugInto script: YazFi_DEBUG_2023-12-29_11-47-57.txt
Test Two - Guest Network Client Internet Access, Access Intranet Enabled:
Note: When enabling Intranet access on Guest Network 1 2.4Ghz the IP address of the Guest WiFi Client changed from 192.168.101.110 to 192.168.1.110.
RT-AC68U: 192.168.1.1
Windows 11 PC: 192.168.1.175
NAS: 192.168.1.99
WiFi Client: 192.168.1.110
LAN PC can ping WiFi Client
WiFi Client can access Internet
WiFi Client can ping LAN NAS
WiFI Client can ping LAN PC
WiFI Client can ping Router
WiFi Client can access NAS web page
WiFi Client can access NAS using SMB
WiFi Client can access Router web page
Generated GetYazFiDebugInto script: YazFi_DEBUG_2023-12-29_11-58-53.txt
Test Three - Guest Network Client No Internet Access, Access Intranet Enabled:
Note: WiFi Client indicates no Internet Access yet still had internet access.
RT-AC68U: 192.168.1.1
Windows 11 PC: 192.168.1.175
NAS: 192.168.1.99
WiFi Client: 192.168.1.110
LAN PC can ping WiFi Client
WiFi Client can access Internet for some reason even though Guest Network WiFi client indicates no internet access
WiFi Client cannot ping LAN NAS
WiFI Client cannot ping LAN PC
WiFI Client cannot ping Router
WiFi Client cannot access NAS web page
WiFi Client cannot access NAS using SMB
WiFi Client cannot access Router web page
Generated GetYazFiDebugInto script: YazFi_DEBUG_2023-12-29_12-17-48.txt
Test Four - Guest Network Client No Internet Access, Access Intranet Enabled & YazFi 4.4.5 installed but not enabled:
Note: YazFi 4.4.5 not enabled on Guest Network 1.
RT-AC68U: 192.168.1.1
Windows 11 PC: 192.168.1.175
NAS: 192.168.1.99
WiFi Client: 192.168.1.110
LAN PC can ping WiFi Client
WiFi Client can access Internet for some reason even though Guest Network WiFi client indicates no internet access
WiFi Client cannot ping LAN NAS
WiFI Client cannot ping LAN PC
WiFI Client cannot ping Router
WiFi Client cannot access NAS web page
WiFi Client cannot access NAS using SMB
WiFi Client cannot access Router web page
Generated GetYazFiDebugInto script: YazFi_DEBUG_2023-12-29_12-26-56.txt
Test Five - Guest Network Client & YazFi 4.4.5 Allow Internet Access No - Two Way to Guest Yes:
Note: Removed block internet access on WiFi client from Parental Controls and turned off Parental Controls.
RT-AC68U: 192.168.1.1
Windows 11 PC: 192.168.1.175
NAS: 192.168.1.99
WiFi Client: 192.168.2.110
LAN PC can ping WiFi Client
WiFi Client can access Internet for some reason even though Guest Network WiFi client indicates no internet access
WiFi Client cannot ping LAN NAS
WiFI Client cannot ping LAN PC
WiFI Client cannot ping Router
WiFi Client cannot access NAS web page
WiFi Client cannot access NAS using SMB
WiFi Client cannot access Router web page
Generated GetYazFiDebugInto script: YazFi_DEBUG_2023-12-29_12-42-24.txt