RT-AC87U Gbit wan speeds @ 30% why?

[Celtan1C]

Hey all, my first post here

Been here for a while sence i bought the 87U. And it has is faults...

Anyway, I can't figure out why my gbit speed suddenly can't get above 400Mbps on both download/upload with all sence stock fw. Right now same with merlins 378.55. Every setting i could think of is checked on the WAN tab. And it's not my ISPs fault, i tested with rj45 cat6 cable right from the rj45connection in the apartment to laptop and immediately got 950+Mbps on both Upload/Download. like i wrote ealier first week when i bought it and had stock fw on same pcs i got above 900Mbps+ every time.

Did a speedtest right after i installed a clean update+factory resett to Merlins .55
same result.

----> https://drive.google.com/open?id=0B5kqm6gSI5NvNXQ4V0lRdW5lRDg

-Local nic drivers checked
-not running any vpn.
-all connections get same result on 1gbit nics on 3 different PCs.
-all connections are with rj45 cat 6 cables, so no wireless connections at all involved.


FW
-same with official 3.0.0.4.378.5134
-immediately after 378_7449 beta was installed (latest was confirmed to be a bad one so skipped that one) i got 280+Mbps on download and 926Mps on upload! how come it just increased with 600Mbps on a fw change!?

i've not reinstalled stock fw yet to confirm it but if i do get back full speeds i can't say my 87U is broke. and i'm stuck.. but we'll get back to you later 2day after work when i have tested stock fw again.

Help!
Regards Cel

 

[john9527]

In order to get near gigabit speeds HW (NAT) Acceleration has to be enabled. Double check on the Tools page for the HW Acceleration status.

 

[Celtan1C]

In order to get near gigabit speeds HW (NAT) Acceleration has to be enabled. Double check on the Tools page for the HW Acceleration status.

i thought i checked that beacuse i'm not that blind but apperently i was does it say NAT Acceleration on official to? went upp to high 800+mbps after that so we (you) found the reason.
big thanks John!

Regards Cel