and thanks in advance for any help. I am a former software developer, so not technically clueless, but not particularly skilled at networking. I welcome any input on how to to better frame or support my question.
I have a home office setup with multiple computers and devices, running off a Netgear Nighthawk AC1900 connected to Comcast for Internet.
One Windows 10 PC very often takes "forever" to resolve URLs when browsing the web — i.e. long enough that Brave shows its "this page seems unresponsive, do you want to continue waiting?" (paraphrased) message while it's trying to connect to a website. This delay is what I want to get rid of.
If I reboot the computer in question, it is sometimes quite responsive initially, but inevitably this particular aspect (web pages being painfully slow in resolving when browsing) bogs down. Once connected — e.g. streaming videos or the like — speed usually seems fine. it seems to be primarily related to resolving the initial DNS lookup and connecting to the website server.
I have XArp running, and have noticed that both the router and this machine show "hsd1.ca.comcast.net" appended to their device name in the Host column. No other devices show that; they either just show their IP address, or a normal device name (e.g. "SERVER2") with nothing appended.
This problem slows things up often enough it's quite an impediment when browsing the web on this PC. I'd like to figure out how to get it to be consistently responsive and loading webpages. (Note: this seems to be an issue across all browsers on this particular computer.)
Here is the ipconfic /all output from the PC in question:
Windows IP Configuration
Host Name . . . . . . . . . . . . : MOZART
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : hsd1.ca.comcast.net.
Ethernet adapter Ethernet:
Connection-specific DNS Suffix . : hsd1.ca.comcast.net.
Description . . . . . . . . . . . : Realtek PCIe GbE Family Controller
Physical Address. . . . . . . . . : D4-BE-D9-A6-AC-F7
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.0.9(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Tuesday, July 18, 2023 5:21:45 PM
Lease Expires . . . . . . . . . . : Wednesday, July 19, 2023 5:21:45 PM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 75.75.75.75
75.75.76.76
0.0.0.0
NetBIOS over Tcpip. . . . . . . . : Enabled
How do I further diagnose and successfully resolve this problem?