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About totototo10
since
01-13-2019
01-25-2019
totototo10
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01-25-2019
01:54 PM
Thank you all for your responses. I bought and set up a router and both wi-fi and ethernet (from my laptop to the router) seem to be working so far.
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01-25-2019
08:26 AM
Does anyone knows what causes a short lease? My ethernet is working right now but didn't work at all yesterday. I have been monitoring some network details by doing ipconfig /all.
When ethernet works, I get a valid ip and an ip lease that says it would expire in 3~4 days.
When ethernet doesn't work the ip address is 169.254.xxx.xx (where xx are hidden numbers). What cause the DHCP not to acquire a valid ip address from the ISP?
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01-24-2019
03:37 AM
The problem reappeared. Any other suggestions?
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01-18-2019
12:06 PM
Following your advice I had a comcast tech come to my appartment this morning and I requested that he replaced a splitter I noticed outside my apartment. He removed the splitter. Internet was working when he got here and is still working as I type. I will monitor the internet in the next few days and will post back if there are any more issues. You were right that removing or replacing the splitter would have an impact on the upstream power. It seems to be within specs now whereas it was almost out of specs before. Below is a screenshot of my updated upstream and downstream signal levels.
https://img.frl/ytsre
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01-14-2019
03:17 PM
There is no splitter. It's a single coaxial cable from the wall to the modem. 2 comcast techs already came to my appartment and said the wiring was fine. Ethernet is working right now.
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01-14-2019
10:31 AM
Retail SURFboard Cable Modem
ARRIS SB6141 | Model number: SB6141
No router.
I contacted Comcast numerous times and had 2 tech visits, they found no issue with the wiring.
The lights on the modem look the same whether ethernet is working or not.
Ethernet is working as I type.
screenshot of my upstream and downstream signal levels and screenshot of my modem’s error logs
https://image.frl/7w795
https://image.frl/gaebq
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01-13-2019
05:25 AM
Problem: intermittent no internet connectivity Running network troubleshooter gives me the error message: "Ethernet" doesn't have a valid IP configuration My system Toshiba satellite laptop S75 hardwire to a personal modem arris sb6141, my ISP is Comcast xfinity. No router. I have high speed internet. I have had the same setup for at least 2 years without this problem. All of the sudden about a month ago, I started getting no internet connection intermittently Without any updates or changes to my system. The issue comes and goes, meaning sometimes there is no internet in the morning, I will come home from work at night and internet will be working. I have talked to Comcast reps over the phone many times and they tell me it looks good on their end and that they can see my modem, they did a reset of my modem but it didn't help. Comcast has sent 2 different techs at my place and they both said the wiring has no issue. I have replaced the Ethernet cable, but there is no improvement. When it first started I had windows 10 pro original version on my laptop, I updated windows 10 to build 1803 but it didn't help. Then I updated windows 10 to build 1809 and internet started working again for a week with no issue at all. Then the intermittent no connectivity issue came back. The lights on the modem look good. There is no yellow exclamation point in the device manager. The IP configuration is set to obtain an address automatically. I have done a network reset. I need your help, please. I can get wi-fi to work on same laptop (open xfinity wi-fi from neighbor).
I installed the latest drivers, the network driver version is now 10.31.828.2018 and I did a network reset, but it didn't help. Ethernet is working right now a s I type.
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