Q: Airport Extreme AC, slow 5 GHz upload
Hi,
I´m having a really strange problem lately...
My setup for a year or so has been an Airport Extreme (N-model) as my primary router which handles both DHCP and NAT (ethernet from a fiber converter straight to Airport).
I also have been using an Airport Extreme AC in bridge mode with the same SSID and password so I have complete coverage in my apartment. I´m having two SSIDs, one for 2.4 GHz and one for 5 GHz.
This has worked perfekt. Always getting great bandwidth from my ISP (about 95 Mbit/s up and down on 5 GHz and about half on 2.4 GHz on both the N-model and the AC-model, 95-96 Mbit/s with ethernet cable).
I had to move the N-model to our summerhouse a while ago so I put the AC-model as the main router with DHCP and NAT on instead of bridge-mode.
This is now my problem start.
Suddenly my upload-speed on 5 GHz drops from 95 Mbit/s to approx 10-25 Mbit/s. If I restart the router from Airport Utility then I get my great speed back again. But suddenly without any warning the upload-speed drops again. It could be after 10 minutes or even a couple of days. Most common is that it drops at least once every day after a restart of the router.
2.4 GHz still works fine, not affected at all.
Now to the most strange part.
If i put another router (brand doesn´t matter) as my main router and then put the Airport Extreme in bridge mode, then it all works perfekt with high upload-speeds again without any drop?!... I´ve had it like that for almost two weeks without any drop. But as soon as I put the Airport as my main router with DHCP and NAT, it didn´t take long before the drop in bandwidth happened again.
I´ve tried EVERY setting in Airport Utility, nothing seem to help. The only thing that helped was putting it in bridge mode, but that is how I want to use it.
How is your upload speed on 5 GHz if your Airport is not in bridge mode?
Anyone that has the same problem as me?
- Mathias
Posted on Sep 13, 2016 1:29 PM




