Q: 802.11 ac on 5ghz tx rate drops to 7mbps
Hi,
Im using MBP 2014 yosemite + tested on el capitan.
I got new router that supports 5ghz and 2.4ghz. What i noticed is that for some time after connecting to 5ghz network it will work fine but then after few minutes it will suddenly drop the TX rate to 7mbps and internet would be unreachable. While on 2.4ghz network it works fine. When i reconnect it starts working again but it will inevitably drop. Has someone noticed something similar? It makes 5ghz network unusable to me.
I also tested this on windows 10 bootcamp - there it works without flaw.
MacBook Pro with Retina display, OS X Yosemite (10.10.5)
Posted on Aug 19, 2015 3:27 AM
Thank you, this helped a lot and actually i solved my problem by doing some research about router country codes.
I found this guy who had a problem after traveling https://www.blix.com/eirik/annoying-80211d-protocol and this discussion http://apple.stackexchange.com/questions/9768/change-mac-os-x-wireless-card-coun try-code
I ran command:
sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resourc es/airport -s
and found out that two routers in my vicinity used US country codes (even though I'm in Slovenia). 2 were using Slovenian and the rest didn't broadcast.
I worked on presumption that MBP picks up US country codes and has than some conflict with channels or whatnot.
I switched both my networks to US country code and now it works really well.
There is some other workaround on second link which could be used if this docent work.
I think the problems were caused by conflicting country codes and Apple should really address that as I can't really go knocking on doors of neighbours about their router settings. I hope this helps to other people having same issues.
Posted on Oct 25, 2015 11:21 AM