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Forum Discussion
4G LTE Modem LB1120 extremely slow speed on T-Mobile
I recently picked up a Netgear 4G LTE Modem model LB1120 to use with my T-Mobile unlimited plan and when I plug the sim card in (from the phone that I'm not going to use anymore) I get extremely slow...
I had a similar experience. Found out that the new tmobile plans (T-mobile ONE) while they sounded great to get the unlimited 4G came with a catch that I missed: tethering (while unlimited) was at 3G speeds unless you got their One Plus or One Plus Unlimited add-on. And I found out in much the same way you did. So if you have that plan, that's probably what's going on. I'm interested to hear that while using custom firmware on your phone and tethering you didn't have the speed problem.
So the solution was to take that spare line i was going to use, kill it as a phone line, and add one back as a data plan (called TMO One Tablet) on my bill ($25) + add their unlimited hotspot to it (called ONE Plus International) (+$25)...now the device tethers at 4G unlimited for $50/mo. I switch the sim in between my LB1120 and their hotspot device depending on what i need it for that day. Works fine so far.
in summary-LB1120 works fine on TMobile as long as you have the right plan.
I forgot to respond to this but basically my issue was T-Mobile screwed up when they activated the line and didn't give me my full server. I'm now under the impression that the custom firmware just resets all the tethering traffic's ttl to look like it's coming from the phone.
- Thanks for response. To refresh, my hardware configuration is:
Netgear LB2120 cellular modem (with T-Mobile cellphone SIM installed )with LAN port connected to Linksys EA6350 router.
The PC fix you provided works great. I wonder if there is a clever way to change the router or modem such that any device I connect to the WiFi network will not be throttled back by T-Mobile? That would be the big win !You can using dd-wrt
Just google it
You'll need a compatible router and you'll have to do some research into how to set all traffic to the ttl in the setting
I haven't done it yet and I don't know when I will because I would have to get a new router so good luck if you attempt it yourself