WiMAX difficulties

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On Thu, 2010-10-14 at 16:47 +0900, Aaron Gutman wrote:
> I have followed the guides for setting up WiMAX userland dependencies,
> and am running 2.6.35 kernel (Ubuntu 10.10).
> The notebooke has a 5150 wimax chipset.
> 
> I get the following output when attempting to connect:
> 
> # wimaxcu connect network 20
> In Manual Scan and Manual Connect Mode
> Trying to find the networks ...
> Scanning 80% Done ======-
> Network found.
> NSP : UQ WiMAX
>     ID          : 20
>     Signal      : Fair
>     RSSI        : -85 dBm
>     CINR        : 3 dB
>     Network Type: Home Network
>     Activated.
> 
> Scanning operation completed.
> Connecting to UQ WiMAX Network...
> Connection failure
> 
> I've put the logs here:
> http://www.lotek.org/~disco/wimax_logs.tar.gz
> 

What I am seeing about this logs is that most found channels are
reporting a really bad link quality:

$ grep  @Ch wimaxd.log 
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 1. Frequency: 2610000, LinkQuality : 0, Preambles: 000000000000000000000004000000, Origin: Scan results, TTL: 10 [L4db_PrintDiscoveredNAPsList]    @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 2. Frequency: 2610000, LinkQuality : 0, Preambles: 010000000000000000000000000000, Origin: Scan results, TTL: 10 [L4db_PrintDiscoveredNAPsList]    @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 3. Frequency: 2600000, LinkQuality : 0, Preambles: 000000000000200000000000000000, Origin: Scan results, TTL: 8 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 1. Frequency: 2610000, LinkQuality : 0, Preambles: 000000000000000000000004000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 2. Frequency: 2610000, LinkQuality : 0, Preambles: 010000000000000000000000000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 3. Frequency: 2600000, LinkQuality : 0, Preambles: 000000000000200000000000000000, Origin: Scan results, TTL: 7 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 1. Frequency: 2610000, LinkQuality : 0, Preambles: 000000000000000000000004000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 2. Frequency: 2610000, LinkQuality : 0, Preambles: 010000000000000000000000000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 3. Frequency: 2600000, LinkQuality : 0, Preambles: 000000000000200000000000000000, Origin: Scan results, TTL: 7 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:05:  3069401968 @Notice   @NDNS_Agent     @Ch 1. Frequency: 2610000, LinkQuality : 0, Preambles: 000000000000000000000004000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
....
16:26:43:  3069401968 @Notice   @NDNS_Agent     @Ch 5. Frequency: 2600000, LinkQuality : 0, Preambles: 000000000000200000000000000000, Origin: Scan results, TTL: 8 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:44:  3069401968 @Notice   @NDNS_Agent     @Ch 1. Frequency: 2610000, LinkQuality : 0, Preambles: 010000000000000000000000000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:44:  3069401968 @Notice   @NDNS_Agent     @Ch 2. Frequency: 2620000, LinkQuality : 0, Preambles: 010000000000000000000000000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:44:  3069401968 @Notice   @NDNS_Agent     @Ch 3. Frequency: 2610000, LinkQuality : 0, Preambles: 000000000000000000000004000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:44:  3069401968 @Notice   @NDNS_Agent     @Ch 4. Frequency: 2620000, LinkQuality : 0, Preambles: 100000000000000000000000000000, Origin: Scan results, TTL: 9 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd
16:26:44:  3069401968 @Notice   @NDNS_Agent     @Ch 5. Frequency: 2600000, LinkQuality : 0, Preambles: 000000000000200000000000000000, Origin: Scan results, TTL: 8 [L4db_PrintDiscoveredNAPsList]     @NDnSAgent_DB.c  (2956)	@wimaxd

thus is not really surprising it fails to connect. -85 dBm in any case is so borderline
it fails most of the times. I'd really like this software to be more conservative.

Have you tried this in another location?



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