On 2019/9/9 下午2:00, Luciano Coelho wrote: > Hi, > > On Sun, 2019-09-08 at 06:45 +0800, Qu Wenruo wrote: >> Hi, >> [...] >> >> Any ideas how this could happen to 3 different intel cards on two >> different systems? (Although all running the same Arch kernel and latest >> firmware) > > This really must be an environment issue. You are describing the same > problem with different NICs (which mean different FWs are being used) > and the same problem on Windows (which means different driver version > being used), so it's not a new bug in either the firmware or the > driver. You're completely right. I have reset and upgraded my router (an MT7621 based router with OpenWRT) to latest OpenWRT, then the problem just went away. It looks like, under the original environment, it's the Android phone doing something strange. > > Was it working properly before? Did it start happening only when you > changed the NIC (even though you changed it back and it remained not > working)? What else changed? Nothing really, so I may hit something wrong with the NIC of the router, not all these NICs. > > I can't see anything hinting any issues in dmesg. Also, I'm a bit > confused about the "5G" you mention. Does that mean that the AP is > connected to the internet via 5G? Sorry for the confusion, I mean 5Ghz. All tests are done in 5GHz freq (802.11ac), and iperf server is connected by RJ45 (1Gbps) and iperf client is through wifi. Anyway, after resetting the router, it's now back to the ~300 mpbs range. Thanks, Qu > > -- > Cheers, > Luca. >
Attachment:
signature.asc
Description: OpenPGP digital signature
