Experiencing Odd issues on my Nexus 4 on T-Mobile with Radio Selector

[netconstructor]

First of all - thanks you very much for your efforts with these simplified flashing procedures. The utility does indeed allow me to connect to the T-Mobile 4G network here in San Diego and when I am at a remote location with 4-5 bars of services I am getting an average speedtest results of 40mb down and 20mb upload which is great.

I have noticed a critical connection issue however when I am located in my bedroom at home which gets horrible service (generally see 0-1 bars displayed on my phones display).

Basically what I have noticed is that after switching over to the hybrid firmware and enabling LTE support my phone does not seem to properly auto-select the best wireless connection to be used for regular internet access. A quick background on my connection details where this keeps happening.

I have a 100mbps down/50mbps upstream connection (which I have never seen deliver less than 40mbps down and 15mbps up). My ISP is COX Communications an my service area is San Diego, CA (North County). Internet access from Cox come in through a Docsis3 piped directly into a Linksys WRT600N (802.11n router with all firmware up to to date).

Under this exact setup, before and after enabling LTE support my Nexus 4 always showed a strong 4-5 bar consistent Local WIFI connection in every part of my house on all devices.

However, after enabling LTE I have noticed a real issue in the device seemingly not recognizing that a strong wireless connection exists and should be used (especially when the LTE signal is consistently between 0-1 bars). I constantly notice this when I am browsing the web from my device and notice that a link I clicked is taking forever to load or times out... reloading the page a few times eventually brings it back online but even then I believe its actually still using LTE instead of wifi + every time I notice a connection/loading problem I consistently always see a very strong WIFI signal and 0-1 bar with T-Mobile. (btw - whenever this happens if I manually turn on airplane mode and enable wifi these connection problems disappear so it must be a radio issue in my view) - correct?

So my question here is, has anyone experienced this same issue and is there a fix for it in the work or some type of way to adjust these settings to tell my device to always use a WIFI connection if T-Mobile has less than X bars? Basically I just want to tell the radio to quit using LTE for internet requests when its Connected to a specific WIFI signal and then switch back to T-Mobile when it loosing that WIFI connection.

Any help, guidance or advice would be greatly appreciated,

CH

Please advise as this has become a real issue for me.

[bpear]

What hybrid modem did you flash? Does your phone display that is connected to WiFi? Or will it just stay on LTE and not display any WiFi status bars?

[netconstructor]

Please excuse the delayed response. To answer your questions... I have actually attempted many different versions in an attempt to fix this issue but I am positive that I have tried the top three hybrid modems and can confirm that I have restarted the device each time. I have even attempted to manually switch the radio to every option related to my device in terms of what band to use through the "info" screen.

To recap - this problem only happens when I have WiFi and the Cell Radio on at the same time. If I place it in airplane mode and/or turn off WiFi I don't have any issues. Further more... When both radios are turned on and any of the top 3 hybrid modems are used my wifi signal will typically show 4 bars and my LTE signal will have 0-2 bars. I am in an area where I have a week LTE signal from one tower and a strong signal from a non-LTE tower.

In any case - I definitely believe there is some type of key issue which specifically show how does not tell my device to use my WiFi radio as the primary when it has a strong connection resulting in every request from any app which uses the internet having a long delay before (and sometimes times out) it completes its requests.

Please advise if there is any way for you to look into this for a fix or if you know of some app which would allow me to force specific applications to use WiFi if its available.

Thanks in advance,

Chris H.

[bpear]

Sorry for such a late reply Chris. So is your device saying it is on a Wifi connection, but connection speeds seem like it is using LTE? Can you check your ip (ipchicken.com) and see if it is your Wifi connection or LTE.

I recently got a new router and noticed some network speed issues. Updating to a kernel with an updated wifi prima driver seemed to fix my problem.

Want to try loading the latest version of this kernel http://forum.xda-developers.com/nexus-4/development/sabermod-franco-kernel-r201-6-jan-14-t2548897 and see how it works for you?