EPO6-A not locking to band 66

alzhao · 2021-11-17T09:22:06.790Z

EP06-A support band 66. So you tried to lock band using the AT command but it does not work?

LTE-FDD: B2/B4/B5/B7/B12/B13/B25/B26/
B292
/B30/B66;
Up to 2 × CA: B2+B2/B5/B12/B13/B29;
B4+B4/B5/B12/B13/B29; B7+B5/B7/B12/
B26; B25+B5/B12/B25/B26; B30+B5/B12/
B29; B66+B5/B12/B13/B29/B66; WCDMA: B2/
B4/B5

Justam32 · 2021-11-17T13:17:28.702Z

Yep I tried to do it though AT commands and all it says is ERROR. The other bands seem to work fine as far as I can tell.

alzhao · 2021-11-17T14:26:16.791Z

Pls send screenshot of the modem info page, including modem model and IMEI. I will check with Quectel.

Justam32 · 2021-11-17T18:17:45.983Z

Is there a way to see the original imei? I changed mine to match the original device I had the sim in.

alzhao · 2021-11-18T02:04:24.134Z

You can give me the modem model (firmware version) first.

Justam32 · 2021-11-18T03:25:47.501Z

If you mean the router firmware version it’s on 3.203 and if you mean the actual 4g module then I have no idea where to find that.

alzhao · 2021-11-18T11:49:02.072Z

I mean the 4G module.

image898×267 33.2 KB

Justam32 · 2021-11-18T13:20:32.206Z

Ok it’s EP06ALAR02A08M4G

Justam32 · 2021-12-01T20:54:04.285Z

Ok I guess band 66 is working now for some reason. Now my question is shouldn’t it be able to aggregate with itself or some other bands? When I check do the AT command to check carrier aggregation it just says “OK” and the signal indicator doesn’t say 4g+

alzhao · 2021-12-02T03:06:17.512Z

What is the Cell info? If you do not lock band it should be able to do aggregation.

What is the speed?

Justam32 · 2021-12-02T05:36:31.048Z

I am band locking to band 66 but that doesn’t stop any other bands from aggregating with themselves at least. I also found this guide and tried to use it to aggregate with 66 + other bands and it says “OK” after the AT command but never actually aggregates-LINK. The speeds right now at 11:30pm are 73 down and 20 up.

[
{
“type”: “servingcell”,
“state”: “NOCONN”,
“mode”: “FDD”,
“mcc”: “310”,
“mnc”: “260”,
“cellid”: “1C3D302”,
“pcid”: “376”,
“earfcn”: “66811”,
“band”: “66”,
“ul_bandwidth”: “15M”,
“dl_bandwidth”: “15M”,
“tac”: “A2E5”,
“rsrp”: “-92”,
“rsrq”: “-8”,
“rssi”: “-64”,
“sinr”: “23”,
“srxlev”: “-”,
“rat”: “LTE”
},
{
“type”: “neighbourcell”,
“earfcn”: “66811”,
“cellid|pcid”: “376”,
“rat”: “LTE”
}
]

alzhao · 2021-12-02T07:14:36.738Z

If you lock band. It will do not aggregation.

The only way is to put it back in automatic band selection. But the modem itself decides if it will do aggregation. The OpenWrt host cannot do anything.

73 is good speed.

Justam32 · 2021-12-02T07:32:11.807Z

Are you sure? If I lock it to band 2 for example it will aggregate but only with itself and not any other bands. I get like 60-70 down with that setup and about 17 up. Also I know 73 is a good speed and I’m definitely not complaining about that I’m just trying to see how fast I can get it.

alzhao · 2021-12-02T07:39:20.150Z

The modem will not aggregate band 2 and band 2.

It only aggregate two different band.

Justam32 · 2021-12-02T08:04:01.650Z

I know you know more than I do but the data sheet from here says it can-https://www.quectel.com/wp-content/uploads/pdfupload/Quectel_EP06_Series_LTE-A_Specification_V1.7.pdf

And the router itself says it is
Results from AT+ QCAINFO

+QCAINFO: “pcc”,1123,75,“LTE BAND 2”,1,235,-90,-8,-63,23
+QCAINFO: “scc”,852,50,“LTE BAND 2”,1,235,-96,-6,-82,23

alzhao · 2021-12-02T08:52:42.097Z

Sorry, seems that I was wrong. Definitely not expert in 4G LTE things.

Justam32 · 2021-12-02T09:10:07.581Z

You’re fine. I just know you’ve very active in these forums and want to make sure you have the right information for others and that I myself had the right information. I looked it up and the name for it is intra brand CA if you wanted to look into it.

Justam32 · 2021-12-06T00:20:58.758Z

I should probably open up a new topic for this but do you have any idea why I can’t get ipv6 to work? I’be tried changing a bunch of settings around and tried to use every apn I can but when I enable ipv6 in the normal gl.inet menu it just can’t connect at all. I’m using sprint if I didn’t say that in the earlier conversation. Also running the router in qmi mode if that makes a difference.

alzhao · 2021-12-06T06:53:11.546Z

Justam32:

any idea why I can’t get ipv6 to work

So now the problem is you enable IPV6 but the modem cannot get IPV6 address? Does the carrier offer you IPV6? Do you need a specific APN?

Justam32 · 2021-12-06T07:16:05.427Z

As far as I can tell they offer it. I’ve tried using x.ispsn witch is a sprint apn specifically for ipv6 and fast.t-mobile.com which I think is for both and r.ispsn which i think is ipv4 only. In qmi mode it doesn’t connect at all and I don’t get assigned any up address but in qcm mode at least I get an ipv4 and it says “unable to get ipv6 address”. I have ipv6 enabled from the gl.inet menu on the modem_1_1 interface and I don’t think I’ve changed anything in Luci yet.