Recently got BD-F5900 for Mother & Mother-in-law (MIL).
MIL system would connect to WAP/Broadband router provided by Cable company.
However, indicated no Internet access.
Today, I tested a lot of options, and I confirmed the following:
802.11n Advanced configuration MUSTS:
1) 20 Mhz bandwidth only...no auto 20/40 Mhz! (Clue above was right, AND SIGNIFICANT...thanks!)
2) Set Modulation and Coding Scheme (MCS) to "Legacy" (if available -- fortunately, was on MIL WAP, fortunately)
So, what does "Legacy" mean? Internet search says:
In Legacy mode, the <fill in the blank> is automatically decided by the data rate.
In High Throughput or Greenfield or "Auto" mode, the <fill in the blank> is automatically decided by the MCS index.
To me, this means that the 802.11n implementation of the BD-F5900 requires modulation to be determined by the data rate negotiated between the WAP and the blu-ray, and not an index number (integer communicated between WAP and blu-ray player during wifi setup)
THIS IS THE OTHER SIGNIFICANT CLUE...
3) Frame Burst didn't seem to work too well, but to be fair, that may have been because in the MIL config, we are supporting b/g/n devices and modes. It could be that some devices did, and some did not support this that was a problem in her situation, but may not apply in all situations.
There's a lot of neighborhood Wifi congestion at my MIL's...so even with these settings now allowing Internet connectivity, certain apps buffered a lot...I may still want to just get a $20 WAP and put it in Wifi to Wired Ethernet bridge mode and connect a wire into the BD-F5900...might be less trouble.