said by DaveO:
I added two Trendnet 802.11n access points to an Active Directory domain, but the wireless clients are getting networking performance that's much slower than they get from 100Mbit ethernet. The wireless clients all have 802.11n PCI cards.
Here are the signal levels from a machine near an APs:
Link Quality 100%
Signal Strength 1 -51 dBm
Signal Strength 2 -49 dBm
Signal Strength 3 -47 dBm
Noise Strength 26% -92 dBm
Do those look OK?
I seem to be getting many CRC errors on sending and receiving:
Frames Transmitted Successfully 9671
Frames Retransmitted Successfully 2880
Frames Received 15103
Frames Received with CRC Error 1575
Is that normal for 802.11n wireless? Thanks.
Very strong signal strengths. Typical of path lengths of just a few feet.
CRC error rate is high. Should be 10% or lower.
1) incompatible client devices (draft-N issues)
2) Frame bursting or Turbo or SuperG or whatever marketing term, and both client and w-router/Access point don't have the same concept of what those terms mean (these are not defined by IEEE 802.11)
3) Channel bonding is turned on in the 11n devices. Problematic
4) Heavy interference from 2.4GHz devices such as cordless phone, analog wireless video camera. Or broadband noise from a microwave or nearby airport radar.