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Forum Discussion
JayG2
Jul 15, 2016Aspirant
C3700 5G band works at 200mbs but not 433mbps
Using EX3700 as an access point connected by ethernet to C3700 modem/router. The EX3700 5g band seems to work if I set the EX3700 to 200mbs but not at 433mbs. At the higher speed, it usually dpe...
- Jul 20, 2016
JayG2 wrote:Thanks, Darren. Please let me know if you think I'm wrong, but I don't think your posting makes sense. The EX3700 is connected to the C3700 by ethernet. The EX3700 is configured as an access point. I think the Wi-Fi speed of the C3700 is completely extraneous. I only included that information because I'd like to know why 300mbs is not offered as an option on the EX3700.
The EX3700 supports 802.11ac Wi-Fi. The 433 Mbps setting uses a modulation scheme (256-QAM) in conjunction with an 80 MHz wide channel. The 200 Mbps setting uses the same modulation scheme except with a 40 MHz wide channel. There is no 300 Mbps setting because there is no corresponding modulation scheme.
The C3700 supports 802.11n Wi-Fi. 300 Mbps uses 64-QAM with a 40 MHz channel. AFAIK, there is no 200 Mbps setting. It should be 145 Mbps (technically 144.4 Mbps). This is 64-QAM with a 20 MHz channel.
JayG2
Jul 18, 2016Aspirant
Thanks, Darren. Please let me know if you think I'm wrong, but I don't think your posting makes sense. The EX3700 is connected to the C3700 by ethernet. The EX3700 is configured as an access point. I think the Wi-Fi speed of the C3700 is completely extraneous. I only included that information because I'd like to know why 300mbs is not offered as an option on the EX3700.
TheEther
Jul 20, 2016Guru
JayG2 wrote:Thanks, Darren. Please let me know if you think I'm wrong, but I don't think your posting makes sense. The EX3700 is connected to the C3700 by ethernet. The EX3700 is configured as an access point. I think the Wi-Fi speed of the C3700 is completely extraneous. I only included that information because I'd like to know why 300mbs is not offered as an option on the EX3700.
The EX3700 supports 802.11ac Wi-Fi. The 433 Mbps setting uses a modulation scheme (256-QAM) in conjunction with an 80 MHz wide channel. The 200 Mbps setting uses the same modulation scheme except with a 40 MHz wide channel. There is no 300 Mbps setting because there is no corresponding modulation scheme.
The C3700 supports 802.11n Wi-Fi. 300 Mbps uses 64-QAM with a 40 MHz channel. AFAIK, there is no 200 Mbps setting. It should be 145 Mbps (technically 144.4 Mbps). This is 64-QAM with a 20 MHz channel.
- JayG2Jul 23, 2016Aspirant
Thanks, The Ether. I marked your reply as an answer. But if it's knowable, I'd like to know why my EX3700 works at 200mbs but not very well at 433mbs.
- TheEtherJul 23, 2016Guru
JayG2 wrote:But if it's knowable, I'd like to know why my EX3700 works at 200mbs but not very well at 433mbs.
I can't give you a definitive answer. You could be in an area where there are a lot of 5 GHz networks. The EX3700 could have a software bug or a problem with its hardware.