Update:
Until 3006.102.4 & betas I always did a reset and tried but Flexqos never worked and result was intermittent freezes and Internet failures.
On 3006.102.5 I did a dirty upgrade and flexqos still did the same so I didn't bother to reset the router (AX88U Pro) & uninstalled Flexqos.
@ExtremeFiretop and @Kingp1n suggested to remove IP Table rules which worked.
So I did a WPS reset and installed flexqos. But WPS reset didn't clear everything and I had difficulty doing SSH and accessing router GUI.
So I again did a complete reset from within the GUI and installed flexqos again. Now it's been more than 24 hours and everything is working flawless (no I did not remove any default rules).
I think it's safe to assume that Flexqos is still OK for AX routers.
Will let you all know if I run into any problems later
Until 3006.102.4 & betas I always did a reset and tried but Flexqos never worked and result was intermittent freezes and Internet failures.
On 3006.102.5 I did a dirty upgrade and flexqos still did the same so I didn't bother to reset the router (AX88U Pro) & uninstalled Flexqos.
@ExtremeFiretop and @Kingp1n suggested to remove IP Table rules which worked.
So I did a WPS reset and installed flexqos. But WPS reset didn't clear everything and I had difficulty doing SSH and accessing router GUI.
So I again did a complete reset from within the GUI and installed flexqos again. Now it's been more than 24 hours and everything is working flawless (no I did not remove any default rules).
I think it's safe to assume that Flexqos is still OK for AX routers.
Will let you all know if I run into any problems later