BE 98 Pro 3006.102.5 Upgrade LAN Port Issue

[Traveler2100]

When I upgraded to 3006.102.5 my router's 2.5G LAN ports quit communicating with one another. I have two 2.5G and two 10G ports active. Each 2.5G port could communicate with the 10G ports but could not talk to each other. One 2.5 port has 3 aimesh and 9 cameras on it and a NAS on the other. I connected a different machine in place of the NAS with no luck. I restarted everything and still the NAS could not be reached or pinged from the mesh nodes and could no longer see or ping the cameras (I run a camera app in a KVM). Finally I downgraded to 3006.102.4 and everything is working fine. No other changes on any of the machines or setup.

 

[Dr.Cheeks]

Could be this same issue I mention in this post: https://www.snbforums.com/threads/asuswrt-merlin-3006-102-5-is-now-available.95358/post-965768
(And the post I'm referring here...)

What router model do you have?

 

[emwgee]

I had similar issue if any one of the guest or IoT networks set to AP isolation. Disabled AP isolation in the VLAN(s) and the problem is solved, at least in my case.

 

[Dr.Cheeks]

I had similar issue if any one of the guest or IoT networks set to AP isolation. Disabled AP isolation in the VLAN(s) and the problem is solved, at least in my case.

Hmm, interesting. Thanks for the response!
(I want my Guest Network to apply AP Isolation, so I'll stay on my reverted 3006.102.4 until a future firmware release doesn't force this 'isolation' onto the LAN ports.)

 

[Traveler2100]

IT sounds like exactly the same problem and the same router. I have a GT BE 98 Pro, LAN ports could not talk to each other but connect to the internet fine. I didn't notice it for a couple days and it took a bit to connect it to the firmware upgrade. I could reach web pages and the like from wireless clients (ipads) but things like backup and file transfers, samba, etc behind the scenes stopped working. I'm staying or 3006.102.4 as well.

 

[Dr.Cheeks]

About this issue... "LAN ports can connect to the Internet, but not to other devices on the local LAN"
I now also have it after upgrading to an official ASUS firmware...

I originally got it after upgrading ASUS 3.0.0.6.102_37563 to MERLIN 3006_102.5_0
Going back to ASUS 3.0.0.6.102_37563 resolved it.

Yesterday I upgrade from ASUS 3.0.0.6.102_37563 to ASUS 3.0.0.6.102_38962, and now same issue there! Damn...

So perhaps this is not related to 'something Merlin', but to some other more generic Asus thing...
I'm going to try a factory reset this weekend, and let's see what happens. Else I foresee another firmware downgrade in my future

 

[bennor]

Yesterday I upgrade from ASUS 3.0.0.6.102_37563 to ASUS 3.0.0.6.102_38962, and now same issue there! Damn...

So perhaps this is not related to 'something Merlin', but to some other more generic Asus thing...

Make sure to use the stock Asus firmware's Feedback option to report your issue to Asus.

 

[Dr.Cheeks]

Make sure to use the stock Asus firmware's Feedback option to report your issue to Asus.

Done.
I'll report back here if anything comes of it.

 

[Dr.Cheeks]

I reset the RT-BE92U (on Asus 3.0.0.6.102_38962) to factory defaults. That seemed to resolve the issue. LAN ports could now talk to each other and the rest of the local LAN

HOWEVER, as soon as I enabled the (WiFi) Guest Network (with 'isolation') the issue returned: LAN ports could no longer talk to the rest of the LAN, only to the Internet. So it seems that the LAN ports get somehow assigned to the WiFi Guest Network and thus 'join into the isolation'...

Removed the Guest Network, and issue resolved again.

So at least I now know what triggers the issue... I'll leave the Guest Network off for now (and tell the friends of my kids to use their 4G/5G ;-))

 

[Dr.Cheeks]

(Now I can switch to Merlin again, I assume the issue is the same there... and that it doesn't show if there's no Guest Network with 'isolation'...)