dns errors

2 Topics

DNS Query Issues
Good day I seem to be having intermittent DNS issues w/ T-Mo home internet. Connectivity to tower is good 500 down 50 up on average Good constant pings to a remote site, personal VPN establishes and stays connected. I have the black 5G square tower looking gateway Firmware version:SGJi10205-1.2.B4 UI version: v1.9.0 Troubleshooting steps tried: Moved GW, no change. Rebooted GW, no change. Factory reset GW, no change. Set static DNS on clients, no change. Sometimes it'll work, sometimes it won't. Spent about 1.5 hours on the phone w/ tech support and the last person I was bounced to didn't know what DNS was…I have constant pings running in the background to 192.168.12.1 (GW), 192.168.0.1 (VPN remote site), and 1.1.1.1 (cloudflare DNS) and they never drop. Is there some sort of port 53 or UDP filtering on T-mo's side that is causing this issue? I am not sure when this started as my T-mo gateway is at a remote location that I haven't been to since December. It has been an issue since I've been here (the last 3 days). When I turn wifi off on my phone and connect to the tower directly I have no issues. nslookup outputs: GW DNS > github.com Server: FWDR-192.FWDR-168.FWDR-12.FWDR-1 Address: 192.168.12.1 DNS request timed out. timeout was 2 seconds. *** Request to FWDR-192.FWDR-168.FWDR-12.FWDR-1 timed-out > github.com Server: FWDR-192.FWDR-168.FWDR-12.FWDR-1 Address: 192.168.12.1 Non-authoritative answer: Name: github.com Address: 140.82.113.3 Cloudflare DNS > google.com Server: one.one.one.one Address: 1.1.1.1 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. Non-authoritative answer: Name: google.com Addresses: 2607:f8b0:4004:c07::8a 2607:f8b0:4004:c07::8b 2607:f8b0:4004:c07::64 2607:f8b0:4004:c07::66 142.251.163.102 142.251.163.138 142.251.163.113 142.251.163.100 142.251.163.101 142.251.163.139 > github.com Server: one.one.one.one Address: 1.1.1.1 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** Request to one.one.one.one timed-out > github.com Server: one.one.one.one Address: 1.1.1.1 DNS request timed out. timeout was 2 seconds. Non-authoritative answer: Name: github.com Address: 140.82.113.3 Any assistance or advice would be greatly appreciated.
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bitsandbobs
Hace 7 meses Place Troubleshooting
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DNS issue on T-Mobile ISP
I switched to T-Mobile ISP a week back and only reason for that was couple of pretty good offers. From the time I switched I honestly was regretting as I was facing DNS issues with a few websites and sometimes my work VPN too. It will not be able to reach a few websites for a few minutes and then it would just work like nothing happened. Initially I could not understand what can cause this but then it occurred to me that it must be DNS issue. To my horror, I realized that DNS (and in fact even many basic settings) can not be configured on this T-Mobile gateway. I was facing this issue on a macbook, everything else just worked fine so I then thought of seeing what my macbook was using. It showed local network configured as DNS server, I removed that and added cloudflare's DNS1.1.1.1. That has fixed my problem. In short: If you are facing trouble in reaching some websites periodically and this is happening only on a few devicesthen try switching DNS on your device to 1.1.1.1 or some other open DNS servers.
awesomedesi
Hace 3 años Place Troubleshooting
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