Intermittent wifi performance. Any/all advice appreciated
Older pc (specs in body below).
Me: retired IT, but service management. An IT generalist, know enough to be dangerous most days.
Situation: Wireless connection to cable modem/router drops out intermittently varying speedtests when connected from 80 Mb/sec (rarely) to 12 Mb/s (usually) to 1-3 Mb/s when things get bad before dropping out completely. My wife will stand next to me with her laptop and get 50-80 Mb/s no problem. This issue has haunted me for months. It only effects my pc and doesn't impact my wife's laptop which is also using wifi despite us having similar geography to router. Layout of the apartment precludes running cables from back of apartment to router in front, and the signal isn't actually bad given the concrete walls. Flairing this as a windows issue bc it seems to be somewhere between the keyboard and the wifi antenna
at first I thought it was my wifi card because I had a duff antenna on the card, so I replaced the card but that didn't solve the issue (but it did give me pc bluetooth capability, which I love).
Things I've tried: new wifi card updated to latest card driver removed or disabled almost any software that was running background processes run and re-run windows defender (no issues) updated to latest available win 10 version set group policy to disable setting aside bandwidth for windows updates
The system:
PC Hardware AMD Fx-9370 8-core 4.42 GHz 16 GB RAM
Motherboard
Gigabyte Sabertooth 990FX 2.0 Network card (<6 months old)
Intel AC 9260 160MHz wireless/bluetooth
Gigabyte GC-CI22M\_A CNVi WiFi
Driver Intel 21.50.1.1 dated 10/6/2019 (most recent available)
Settings:
802.11 a/b/g mode 802.11ac
ARP offload for WoWLAN enabled
Channel width for 2.4 GHz auto
Channel width for 5GHz auto
Fat channel intolerant disabled
Global BG Scan blocking never
GTK rekeying for WoWLAN enabled
MIMO Power Save Mode auto SMPS
Mixed Mode Protection RTS/CTS enabled
NS offload for WoWLAN enabled
Packet coalescing enabled
Preferred band Prefer 5G band
Roaming aggressiveness medium
Sleep on WoWLAN Disconnect disabled
Throughput booster disabled
Transmit power highest
U-APSD support disabled
Wake on magic packet enabled
Wake on pattern match enabled
OS Win 10 Version 21H1 (build 19043.1466)
Windows Feature Experience Pack 120.2212.3920.0