Poor WAN performance on Netgear R6700v2

[rkh]

I recently loaded 1.14 onto a R6700v2 for purpose of enforcing quotas on a metered starlink connection. Performance has been poor for web browsing with lots of timeouts, slow or not loading images, and embedded video stutter. Processor and memory load on the router seem very low.

I can't avoid double NAT because WAN network isn't my own to modify, so there's that. But I wouldn't expect double NAT to have this extreme performance penalty for basic web browsing?

If I put the gargoyle router in bridge mode the issues all go away, but I obviously lose the ability to enforce quotas because DHCP is then coming from the WAN.

I've tried various combinations of QOS on/off, GoogleDNS, OpenDNS, 1200-1500 MTU, with no luck.

Any suggestions for improving Gargoyle performance in this scenario?

Edit:
Wireless mode is disabled.

[Lantis]

What speed is your WAN connection?
While your device is a little slow, it should not be causing terrible slowdowns.

I would suggest you do not need QoS enabled, simply use Quotas with speed tiers. This should improve performance.

If you have "Enforce DHCP Assignments" on, try disabling that as it can cause a performance penalty.

If these do not improve the situation, I would suggest you have another fault. Misconfigured double NAT or similar?

[rkh]

I think I may have solved the issue. I had a fixed GB/day quota for each static IP, plus all not explicitly defined users with the penalty set to "halt all internet access" when quota exceeded. This was I believe was causing severe problems for all users under their quotas every time quota-exceeded traffic hit the router.

When I changed each quota to "throttle user" at 1kb/s up/down instead, performance massively improved.

Going to use it for a few days to see if this was indeed the problem.

[Lantis]

That’s interesting. I’ve not seen that before but it kind of makes sense.
Please report back on how it goes.