Digest for sci.electronics.repair@googlegroups.com - 6 updates in 2 topics

jeff <nomail@example.com>: May 14 10:41PM +0200

my wifi router locks up a lot
physically removing power for a few seconds works every time
when it locks up I can't log into it with a browser over wifi
after a physical reboot I can log into it with a browser over wifi
just wondering if there is a way to reboot a router from the command line
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: May 14 06:34PM -0400

On 2020-05-14 16:41, jeff wrote:
> when it locks up I can't log into it with a browser over wifi
> after a physical reboot I can log into it with a browser over wifi
> just wondering if there is a way to reboot a router from the command line
 
Does it have an ssh server?
 
Used routers are cheap like borscht. You could get one off eBay or
someplace for very short money and reflash it with OpenWRT, for instance.
 
Cheers
 
Phil Hobbs
Jeff Liebermann <jeffl@cruzio.com>: May 14 09:01PM -0700

>when it locks up I can't log into it with a browser over wifi
>after a physical reboot I can log into it with a browser over wifi
>just wondering if there is a way to reboot a router from the command line
 
Could you provide the manufacturer, model number, and firmware
version? Not all wireless routers are made the same.
 
I've seen lockup problems from:
1. Bad firmware.
2. Overheating.
<https://www.google.com/search?q=asus+rt-n66u+overheating>
3. Bulding and leaking electrolytic capacitors.
<http://www.learnbydestroying.com/jeffl/pics/repair/slides/Netgear%20DSA-12R-12.html>
<http://www.learnbydestroying.com/jeffl/pics/repair/slides/Motorola-2210-02-PS.html>
<http://www.learnbydestroying.com/jeffl/pics/repair/slides/Motorola%202210-02-1002.html>
4. Defective power supplies:
<http://www.learnbydestroying.com/jeffl/pics/repair/slides/2Wire-power-supplies.html>
5. DoS (denial of service) attacks from the LAN side.
 
CLI (command line interface) instructions vary from router to router.
For example, the command on a Sonicwall is simply "restart". On
Ubiquiti, it's "reboot now". For some Cisco, it's "reload". As I
mentioned, it would help if you provided the maker and model number of
your wireless router.
 
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
whit3rd <whit3rd@gmail.com>: May 14 10:36PM -0700

On Thursday, May 14, 2020 at 1:41:50 PM UTC-7, jeff wrote:
> my wifi router locks up a lot
 
In addition to Jeff Lieberman's list, look up the router and find out if there's a firmware update.
That smooths out a LOT of wrinkles (and might unload a few types of malware, as well).
abrsvc <dansabrservices@yahoo.com>: May 14 12:30PM -0700

I am looking for a replacement part. It is an 8-pin SMD IC with the following on it:
 
F6091/SN1321
 
 
From what I can gather, it is a solid state fuse. I am looking for a supplier of these (google search turns up Alibaba, but the link shows other parts) or a datasheet that has the pinout.
 
Any assistance would be appreciated.
 
Dan
 
ABR Services
JC <Chipbee40_SpamNo@yahoo.com>: May 14 05:13PM -0400

abrsvc wrote:
 
> Any assistance would be appreciated.
 
> Dan
 
> ABR Services
 
could be this:
 
https://www.ebay.com/itm/123297456345
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