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826-T MC7455 Sprint Painfully Slow

Posted: Mon Dec 31, 2018 10:40 am
by stlsvt
I have posted on the FB page about my issue but figured some of you might not see it there. I just put this together a few days ago using 826-T with Sierra MC7455 and flashed openwrt-we826-GO2018-09-02-upgrade.bin and set the APM to n.ispsn. I have a Sprint sim removed from a working Iphone on my personal unlimited Sprint family plan, I removed the sim and installed it into this new router, I followed the tutorial to the letter and it works. Trouble is it is extremely slow compared to another Sprint phone in side by side testing the phone will see 25-30M down with around 5-6 up and ping is usually around 100. The router will not even break 1M down and usually times out before anything can finish. I have had a few try and help from FB and believe me it is very much appreciated. I am not sure if this is the best that I can expect or if there is something off with my setup?

Code: Select all

at!gstatus?
!GSTATUS: 
Current Time:  1312		Temperature: 41
Reset Counter: 1		Mode:        ONLINE         
System mode:   LTE        	PS state:    Attached     
LTE band:      B41    		LTE bw:      20 MHz  
LTE Rx chan:   39874		LTE Tx chan: 39874
LTE CA state:  NOT ASSIGNED
EMM state:     Registered     	Normal Service 
RRC state:     RRC Idle       
IMS reg state: No Srv  		

PCC RxM RSSI:  -66		RSRP (dBm):  -92
PCC RxD RSSI:  -71		RSRP (dBm):  -97
Tx Power:      0		TAC:         B81B (47131)
RSRQ (dB):     -5.9		Cell ID:     0FA28FC4 (262311876)
SINR (dB):     26.8

Re: 826-T MC7455 Sprint Painfully Slow

Posted: Mon Dec 31, 2018 11:10 am
by swwifty
Signal stats look good.

Can you try a wired ethernet connection to the router, to see if it is any faster? I'm wondering if you have interference or something on the wifi side.

Re: 826-T MC7455 Sprint Painfully Slow

Posted: Mon Dec 31, 2018 11:45 am
by stlsvt
I have tried same or similar result.

Re: 826-T MC7455 Sprint Painfully Slow

Posted: Mon Dec 31, 2018 11:47 am
by stlsvt
What should I be using for APN for Sprint?

Re: 826-T MC7455 Sprint Painfully Slow

Posted: Mon Dec 31, 2018 11:59 am
by stlsvt
Some of the thoughts are that it is in some sort of tether mode or maybe it has something to do with IPV6? I found a command to enable IPV6 and tried to run it and it only gave an error each time I tried it.

Re: 826-T MC7455 Sprint Painfully Slow

Posted: Mon Dec 31, 2018 1:00 pm
by swwifty
I'm not really sure to be honest, sprint LTE issues are always very odd to me.

You could try a speed test from openwrt as well, just to rule out anything else.

Re: 826-T MC7455 Sprint Painfully Slow

Posted: Sat Feb 02, 2019 2:13 pm
by MikeH
I had the same problem with a TMO sim card. What fixed it was

NETWORK > FIREWALL > CUSTOM TTL SETTINGS and ENABLE for Value 65. SAVE & APPLY

Not sure if Sprint needs this but it's worth a shot