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Odd 4G+ problem on B535-232

daleski

Pro Member
Found a sweet spot now in my house which gives speeds of between 70 to 110mbits however..... I am getting random speed drops to 10mbits or so even with full signal and 4G+ in both bedrooms multiple times a day.

The F/TDD ID is 20880800C5 on huactrl are bands 800+900+1800+2100+2600+2600|TDD

The cell according to cellmapper runs on bands 1,3,20 which is right for my area, below is a summary of what I have found so far.

1) If I use huactrl to set the network type to 4g from auto it says LTE+ but speeds drop to 5-10mbits
2) If I use huactrl to set the network type to auto from 4g it says LTE+ the speeds are then back to 70mbits plus for about 30 minutes to maybe 60 minutes max.
3) If I use huactrl to set the network type to 4g and manually select the bands for the F/TDD ID of 20880800C5 it states LTE+ but again speeds are capped at 5-10mbits
4) If I use huactrl to set the network type to 4g and manually select the bands 1,3 and 20 it jumps from LTE to LTE+ but again zero carrier aggregation and speeds capped at 5-10mbits

When the speed drops the signal strength remains the same, the LTE+ always stays and the speed never recovers, if I make a single change without any reboots of the router on huactrl the speed jumps right back to 70-110mbits.

Any help would be appreciated guys!
 

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Set the bands to 4g and custom (ie all bands selected) on huactrl and boom speeds back up to 85mbits
 
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Try and get the SINR up above +10, if you position the router just right it should make a big difference to the stability of the connection?
 
Your previous posts span several topics, so I'm a bit lost as to what the situation is in terms of what masts/cells you're connected to with what frequencies.

During all the frequency switching you're doing, does the mast (eNBID) remain the same (1613 in your screenshot)?

Have you attempted to set just one frequency at once for a long duration? Does that maintain better speeds over time?

As MrDave says, SINR is low in your screenshot, that won't be helping things at all.
 
I'd echo that, SINR is a major factor. My "perfect router placement" is a SINR of 20, but if i move my router 2 inches to the left it becomes zero. So the smallest change of router location can make a massive difference.
 
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Your previous posts span several topics, so I'm a bit lost as to what the situation is in terms of what masts/cells you're connected to with what frequencies.

During all the frequency switching you're doing, does the mast (eNBID) remain the same (1613 in your screenshot)?

Have you attempted to set just one frequency at once for a long duration? Does that maintain better speeds over time?

As MrDave says, SINR is low in your screenshot, that won't be helping things at all.

The eNBID always remains the same
 
Got the SINR to between 8 and 11, limited for moving the router right now as using it for work.

And so far with 4g selected rather than auto on All FDD the speed is not dropping like before but will try and get the SINR as high as possible but keep the RSRP as low as possible too.


Screenshot_20200603-142742_huaCtrl_SINR.jpg
 
Spoke too soon it’s just dropped, put everything back to auto and will move the router again as the SINR has dropped again to 6
 
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I think that SINR of 10 will be reporting the Primary band, which according to your screenshot is B20.
SINR of 10 on B20 isn't particularly outstanding considering B20 should penetrate obstacles (walls) fairly well.

What would be more valuable to know is the SINR of B3 or B1 when they are the primary band - those are the bands that will give you the higher throughput (higher than B20 anyway).
I think to force it off B20 you'd need to select B3+B1 (or either band individually), or at the very least exclude B20 from the enabled bands.
 
In its current location B1 and B3 are negative SINR and the SNR is 103, downstairs I get better SINR but no LTE+ at all and speeds no higher than 25-30mbits at all times

Best of both worlds would be if I can get LTE+ downstairs where B3 is much stronger than B20 upstairs.
 
In its current location B1 and B3 are negative SINR and the SNR is 103, downstairs I get better SINR but no LTE+ at all and speeds no higher than 25-30mbits at all times

Best of both worlds would be if I can get LTE+ downstairs where B3 is much stronger than B20 upstairs.
stick it in the attic
 
Moved the router back downstairs, no more LTE+ but speeds are 60 down ish and 25 up with B3 as the primary band.

SINR now back to 15 and RSRP around 87 or so.
 
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Moved the router back downstairs, no more LTE+ but speeds are 60 down ish and 25 up with B3 as the primary band.

SINR now back to 15 and RSRP around 87 or so.

I think that'd be the best case you can hope for with three. I've never seen over 100mb since December of last year (back in October I saw 130mb). My connection hovers around 30-50mbps nowadays only topping out at 70mb for a small time period mid-day. All of the time I've been with three I have been connected to a single mast on Band 3 only.

(I can only connect to a mast 8 miles away on B20 if I disable band 3 and then get 5-10mb tops. The B535 refuses to connect to both to get 4g+)

I look forward (in resigned hope) to the day Three deem my local mast worthy of an equipment upgrade. I'm easily close enough to get 5g from it, if that day ever arrives.
 
I think that'd be the best case you can hope for with three. I've never seen over 100mb since December of last year (back in October I saw 130mb). My connection hovers around 30-50mbps nowadays only topping out at 70mb for a small time period mid-day. All of the time I've been with three I have been connected to a single mast on Band 3 only.

(I can only connect to a mast 8 miles away on B20 if I disable band 3 and then get 5-10mb tops. The B535 refuses to connect to both to get 4g+)

I look forward (in resigned hope) to the day Three deem my local mast worthy of an equipment upgrade. I'm easily close enough to get 5g from it, if that day ever arrives.

B20 when it works gives me a consistent 70-90mbits with a peak of 110 but I have only seen this once!

Speeds are now down from 60 to 30, it's frustrating knowing you can get much faster speeds but with a huge sacrifice for stability.
 
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