Several months ago I replaced my razr maxx with a razr maxx hd due to issues I had maintaining signal from the jelly bean 4.1.2 update on the maxx, whereas I am stuck from the get-go on 4.1.2 jelly bean on maxx hd. Overall the phone maintains signal decently, though randomly loses 4g, but that's not the problem. With my original maxx I was able to use bluetooth (on a phone call) and wifi simultaneously, this was using a bluetooth 2.1 headset, had tested with a 3.0 bluetooth headset and worked the same. In other words, I could send emails with attachments (or surf web etc) over the wifi at normal speeds and be talking on the phone at the same time.
With the replacement maxx hd, I'm unable to do this at normal speeds. Before anyone suggests factory reset, clear cache, safe mode, tried all that, still replicate problem. For instance, I can be on the phone with wifi on, and attempt to surf web over wifi or send email with attachments and it'll either fail each time or send excruciatingly slow. The second I turn off bluetooth and am talking through phone itself, it sends normally at the normal speeds. I'm using a d-link dir-655 router, and have tried changing channels, shutting off auto scan, 20/40mhz, qos off, wpa/wpa2 and bother as aes/tkip cipher and so on. I know the router operates on 2.4ghz range, the same range as bluetooth, but I'm curious as to why my razr maxx had no issues before using bluetooth/wifi simultaneously whereas my maxx hd seems to be "conflicting" the signal between the use of bluetooth and wifi at the same time. I can't seem to find any information as to why this is occurring other than it's a known issue since the update to jelly bean 4.1.2 and no fix in sight as of now...months & months of this issue is starting to get old. I can replicate the same issue on another router at another location.
Is there any specific setting or something in the phone that would confuse the wifi/bluetooth so they aren't operating at different bands therefore both using specific same channel within the 2.4ghz spectrum? The droid razr maxx did not have this issue with same bluetooth, same router as the droid razr maxx hd has. It's becoming quite frustrating because I have to swap off bluetooth, put phone on speaker then send what I need to over wifi. This is an operating system specific bug that has not been fixed. I'm off contract and am considering switching because it's been nothing but headaches for months dealing with tech support on verizon that can't seem to solve this issue. I like the phone, but I can't see how a bug of this nature has no work around, no fix, and no official word as to what is happening.
Any input, suggestions, information, or pointing me in such a way would be greatly appreciated. Thanks.