Questions tagged [isp]

An Internet service provider (ISP) is a company that provides access to the Internet. Access ISPs connect customers to the Internet using copper, wireless or fiber connections.

166 questions with no upvoted or accepted answers
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2k views

How to check if your ISP does video throttling?

I’ve recently changed my ISP and noticed that I no longer can watch video sites like YouTube in real time; I need to wait for buffering first. On both ISPs, my speed was same 5 megabits per second. I’...
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1answer
200 views

A Canadian in Berlin - problems with FTP and IP numbers - anyone have ideas?

Thanks for taking the time. My problem- I am a Canadian (with Canadian laptop) presently in Berlin. For some reason I am having repeated connectivity problems -- At my flat I cannot connect via ...
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1answer
272 views

Can the ISP see the path of a SOCKS proxy chain

While I was reading an article about proxy chaining https://resources.infosecinstitute.com/proxy-chaining/ I've stumbled upon this paragraph Even if you use proxy chaining you can’t be 100% ...
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658 views

IPv6 Config on Asuswrt-Merlin (374.43 LTS releases)

For my home LAN I use an ASUS RT-N66U running the Asuswrt-Merlin (374.43 LTS) fork which is a nice simple and stable firmware and also updated regularly. My ISP is BT in the UK. I have been using ...
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239 views

Imgur images take too long to donwload

Short description Recently my ISP changed my modem/router and I'm experiencing now slow downloads in some sites (imgur.com, tenor.com for example), that worked fine with my previous router. I'm not ...
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1answer
387 views

Why internet traffic behind ISP is not subject to captcha like a VPN?

When I'm using the internet from my ISP 'directly' (I mean with no VPN or proxy), I can surf the web freely and almost never encounter a captcha but as soon as connecting to a VPN service, captchas ...
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112 views

Losing internet after IP switches from valid public IP to a private IP, what could be wrong?

Basically I have had to call my ISP around 20 times in the last three weeks about this issue. My internet disconnects and my IP changes from a public IP in a valid range for my ISP to something in the ...
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1k views

Internet drops frequently unless running an infinite ping

My internet tends to cut out and then return a few minutes later, I've been struggling with this issue for years with Comcast, I've gone through ~4 modems, and 2 routers and countless technician ...
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498 views

403 Forbidden error only for wikipedia site

So I was browsing the Internet and everything was nice and dandy suddenly my favorite site wikipedia gave me this: Forbidden You don't have permission to access this page. I have been trying ...
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3answers
572 views

Can my ISP find out if my wireless is protected or not?

Im just wondering how much my ISP knows about my activities. I have a Modem from them this modem then connects to a SITCOM wireless router which then leads to MY PC's, Phones, Laptops. I really need ...
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52 views

What does it mean that I can detect two different public IPs from the same workstation?

Recently while trying to set up a new VPN configuration, I found out that I could detect two different public IPs: one by querying google (what is my ip) and the other by curling ifconfig.co. This ...
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41 views

What to do when your DNS provider goes MIA?

I registered a couple of domain names with a VPS provider a long time ago (over 10 years). I stopped using the VPS over two years ago, but I never discontinued the DNS name registration with them. ...
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71 views

Why does my ISP give me free Dynamic DNS service?

Recently when doing a reverse IP lookup on my own ip address I noticed that my hostname was set as [insertAccountNameWithISPhere].plus.com when I go to plus.com it redirects to Plusnet who is my ISP. ...
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1answer
75 views

Unexpected slow speeds with my ISP when connecting to websites hosted in other countries

My ISP have this strange problem. It works good on sites hosted on servers in my country, but is miserable when it comes to internationally hosted websites esp during day time. Other ISPs available ...
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40 views

Make my LAN independent for local routing (DHCP + static routing) while connected to a cable modem with DHCP which cannot be disabled (ISP)

First of all, I want to say that my knowledge about networking is basic (I'm a web developer, not a net admin :D) I have a local network composed by: A cable modem with routing capabilities (Let's ...
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1answer
105 views

My ISP does not redirect http to https for Squarespace hosted sites

I recently discovered that my ISP does not load websites hosted on Squarespace, unless the URL includes the "https" prefix. If the URL just points to example.com or www.example.com, or http://www....
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2k views

Interleaving, and its effect on VDSL2 latency

(Re-posting from Network Engineering SE, turns out this was actually off-topic there.) Having moved to a new house I hired with an ISP a broadband internet plan. The technician told me I live really ...
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1k views

Nat type Strict, how to change it to Moderate or Open? Behind a router from my ISP

I'm having a Nat type strict, checked using the Xbox networking method on Win10 (Settings---Gaming---Xbox Networking). Firstly, the problem I suspect, is I'm behind a router from my ISP. as my normal ...
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52 views

Changing DNS does not “take effect”

I've been trying to troubleshoot this for the past 2 days, I've tried so many things and I'm just tired and need help now. First, a short description of my whole network: I get service from 2 ...
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1answer
322 views

How can I ping my neighbor's Coax'd Modem?

Main Question: How can I, or why can't I, directly ping/access my neighbor's PC (or even Modem) over the Coax without having an ISP? (tracert from me to him directly). Related (wik): Aren't all of ...
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234 views

On a home DSL line, why would PING fail, but LCP echo work fine?

Odd network issue - I have a VDSL (fibre-to-the-cabinet) line to home. My router connects via PPPoE to my ISP, and the ISP then sends regular LCP echo packets to monitor the connection and show ...
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196 views

How can ISP be prevented from remotely accessing modem?

How can I prevent At&t from messing with the modem? Backstory: At&t seems to have updated the firmware on the Arris NVG599 modem and all the settings were lost. After updating the static IP'...
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1answer
1k views

port forwarding, ports are blocked

I did the following steps for accessing a http service that is hosted on my lan from outside the network. registered a hostname in no-ip. downloaded and installed duc did port forwarding setting on ...
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119 views

Can a cheap ADSL modem router be responsible for frequent disconnects from and speeds from/to my ISP?

I experience frequent disconnects from my ISP (about 100 every day). Some connections do not last longer than a few seconds. I also experience very slow internet download and upload speeds – even ...
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195 views

What will happen if I connect multiple ISPs to a single router?

I have just started learning about routers and switches and how they are used in designing a network. Connecting multiple routers and making them self-configure, causes them to dynamically discover ...
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200 views

ISP claiming 40% faster internet speed with data caching using close geographic proximity servers

Recently one if our ISP claiming that they can provide 40% much faster internet speed with the aid of in country data cashing techniques. they also mentioned that consumers can benefit this speed with ...
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34 views

Can cable signal strength cause failures in particular layer 3 protocols?

In the past, I've lost 98%ish IPv4 connectivity on my Comcast connection, but I had IPv6 connectivity fully. (IPv4 SYNs, or the corresponding SYN-ACKs (it's hard to tell) were getting dropped most of ...
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68 views

ISP error in routing to a specific IP subnet. What can I do?

I have a brand new VPS on IP 155.xxx.xxx.xxx. I started to configure it and all of a sudden, the SSH connection shut off and I could no longer reconnect to it from my office PC. Tried later on to ...
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472 views

High ping when using router directly via WiFi

My router (after having a plan upgrade) is giving me poor connection and very high ping. My ISP is telling me that the problem isn't on their end but mine. If I use my own router for WiFi and piggy ...
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866 views

Youtube video loads from ISP, not Google

Using Wireshark, I noticed that the Youtube video I was watching had the source address of my ISP, not Google. Does this mean my ISP is using Google Cache and loading all video from there? If so, what ...
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1k views

How to check if my ISP is changing in any way a request to Google's DNS?

The problem is that superuser.com, stackexchange.com and many other sites didn't work. When I was debugging the problem, I tried nslookup: user@host:~$ nslookup superuser.com 8.8.8.8 Server: 8.8....
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476 views

How to bypass per socket speed limit of my isp?

well my isp slows down the internet by puting per socket speed limit from evening till midnight total speed of connection stays ok if something i am download uses multiple socket but things that use 1 ...
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1answer
2k views

TRACERT Issues, Consistently timing out on specific steps

I've been with the same internet provider (ZoomInternet) for a few years now. It has been a relatively good experience, and the service is typically fine just fine. However, the last 2 or 3 days I'...
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1answer
764 views

Making Sense of ISP's Network Topology

I recently noticed something odd while performing traceroutes from my home network, and its made me wonder as to the architecture of my ISP's network. My home network uses 192.168.0.0/16 addresses (...
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51 views

Google Services doesn't work with google DNS

I use DSL at work and home, from the same ISP. I have the same router with exactly the same model at both locations. I Have configured the two routers with the very same configuration except the ...
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1answer
676 views

Using Public IP (assigned from ISP) in local network

I'm an ordinary home user, who have 3 PCs, and i'm connected to the internet through an ordinary modem/router. I have received one public IP address from my ISP (in addition to another public wan one)...
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2answers
2k views

How to get my router IP address (assigned by ISP via DHCP)

My router has a WAN PRIVATE IP address which is assigned via DHCP by my ISP. This is different from my public IP address of course. In my router settings page I can read it: 10.245.134.71, and ...
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392 views

Issues forwarding ports after ISP IP Address change

My ISP recently (today) changed the dynamic IP address of my service, and has caused me some issues. First off, I had to reset my static local IP, but got that taken care of. My router, model: ...
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2answers
613 views

How to IPv4 through IPv6?

My ISP (Unitymedia Germany) tunnels IPv4 traffic through slow and unstable CGNAT (they call it "AFTR", which seems to be a similar thing) but comes with reliable and native IPv6. Now, is there any ...
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2answers
532 views

Two (multiple) internet providers?

I have two (multiple) separate internet providers. Is it possible to setup my network so that it use both (all) of them to speed up both download and upload (packet-level routing)? If it is not ...
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0answers
139 views

Spam-tag chinese spam mails via ISPConfig

I'm looking for a way to get rid of the ton of - I assume - Chinese spam mails I get every day. Is there a way to filter out mails which contain Asian characters in the subject? I googled around but ...
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108 views

How do I make Windows switch Wifi connections when a limit is reached?

My Internet service provider only allows me a cap of 30gb a month. It's a 4g LTE router which I connect to wirelessly. I also have another 3g wireless router as a backup. Windows does not show "no ...
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804 views

cant access my site is my ip blocked by ISP

I want to know if my ISP has blocked my website www.indolog.com . If i use another ISP it works fine. Below are the tracert log C:\>tracert www.indolog.com Tracing route to indolog.com [199.223....
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60 views

Logging in to the university website displays an entirely different user account

Note: I'm using Windows 7, Google Chrome as the default browser. We also don't have dedicated IPs in my country I was trying to register online to the fall semester online through the website of my ...
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1answer
976 views

How is LAN diagram/schematic where my cable modem is connected to?

I'm not an IT guy, i'm just home user which know a bit about networking. I'm trying to learn how the connection (LAN) is built in outer side of my home LAN. Here's the diagram : PC (IP:192.168.1.100)...
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2answers
236 views

DHCP Renew on FW restores Internet Connection - why?

Home network, Cisco ASA 5505 9.0(1), Windows Server 2008 R2 (actually SBS 2011), various Mac, Windows and embedded clients. ISP is Rochester, NY Road Runner. Often (2-3x per day) my embedded devices ...
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1answer
107 views

internet connection issues ( Router, network, ISP? )

I have got a problem with either my router or my ISP provider. Please let me know if you can work out what could be wrong. My observation: downloading large files (over .5 GB ) works well, download ...
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1answer
3k views

Download speed spikes

My download speeds drop to about 1 kbps then spike to between 200 kbps and 500 kbps then drop to about 1 kbps for about 5 seconds before it spikes again. But if I surf the internet i get speeds ...
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84 views

Can I use two CDMA EVDO modems alternatively on the same line?

Can I use both modems one at a time (never at the same time) on the same line? I mean: I turn off one then use the other and viceversa. Will the same phone line work with both modems always?
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209 views

Dlink dir 685 with static IP. Cannot see router from other network

I have l2tp connection. My ISP gave me static IP. I can ping this IP from my ISP network successfully. But if I ping it from other ISP - it doesn't. I have dlink 685 router. Unchecked in Firewall ...