Monday, March 14, 2011

Comcast Customer Support and Internet Speeds

Comcast logo

Comcast is notorious for its poor customer support. My experience with them has not been totally inconsistent with most of the terrible things I've heard. Back when I initially tried to get internet service ordered, one customer service agent at the Baltimore service center even went as far as to say that another agent (via Comcast online chat, who asked me to visit the service center to verify my identity) lied to me about being able to pick up a self-install kit. Whether or not I should have been able to is besides the point; I think it's quite something if Comcast calls itself a liar just because an agent made a mistake in what they thought was possible. In general, I've found that things one customer service agent tells me may no longer apply with the next agent. The level of consistency, or rather lack thereof, can get to be extremely frustrating.

About a month or two after my Comcast service was initially connected, I noticed that the sustained download speed I was getting was inconsistent with the tier I signed up for. I signed into the Comcast online chat support service, explained that I believed the modem was not receiving the configuration file for my level of service, and had the issue resolved very quickly.

More recently, I signed up for a promotion for a higher tier of internet service. Between about 5-6 customer support agents including a supervisor, none were able to get the correct modem configuration file sent. Most of them claimed that the issue had been fixed and I had to wait 24 hours for the change to take effect. In one of these cases, waiting 24 hours resulted in my modem returning to the Comcast walled garden (unregistered modem). When I attempted to go through the first time registration process, I was told by the online system that no service tier was on my account number. Fortunately, phone support was able to restore my previous tier of service fairly quickly.

After about the 6th agent in trying to get the correct tier of service, and a callback to my voicemail saying that no internet billing codes were on my account, some neuron in my brain fired reminding me that Comcast had a Twitter account which was staffed by an effective support team. I did some quick research online to gauge others' experiences, and decided to give it a try. I e-mailed the address listed on the Twitter page since I don't use Twitter, and within 15 minutes of my request I received a reply saying that the issue was fixed. I checked and indeed it was fixed! So if you are a Comcast user, I highly encourage you to use Comcast's Twitter support team, whether by Twitter or e-mail.

In Comcast's defense, however, if you are using wireless and feel that your internet is very slow, and you are living in an apartment complex, try a wired connection first. It is very likely that your speed is low due to interference from neighbors' WiFi. Most people only have wireless routers and laptop wireless cards that operate in the 2.4 GHz frequency range, in which there are only 3 non-overlapping WiFi channels. In my building, I can see more than 30 access points of varying signal strength from where my laptop sits. That means all of these 30 cause interference to some degree in the 2.4 GHz range, and that doesn't include interference from microwaves, portable phones, and Bluetooth devices which also operate in the 2.4 GHz radio band. My solution was to get a dual band wireless router, which includes the ability to operate in the 5 GHz frequency band in addition to 2.4 GHz. Although 5 GHz does not penetrate walls and bend around obstacles as well as 2.4 GHz does, it has many more non-overlapping channels (20). Not being able to penetrate obstacles as well can also become advantageous if everyone had a 5 GHz-capable router since the degree of interference from neighbors would also be reduced. Dual band wireless routers are more expensive, which is probably why most people don't have them, and will also require that your laptop have a wireless card that can talk 5 GHz. Generally, if the wireless card says it can connect to 802.11a networks, it can do 5 GHz. 802.11n can be either 2.4 GHz or 5 GHz, so if you have a card that says it can connect to b/g/n, that's likely to mean only 2.4 GHz, and a 5 GHz wireless router will not help you. Over a 5 GHz connection, my laptop can get the same speeds to the internet as a wired connection can (30 Mbps downstream, 6 Mbps upstream), but over 2.4 GHz, speeds are much slower (about 4 Mbps downstream, 5 Mbps upstream).

Tuesday, March 8, 2011

Censored!

...by China's censorship policies.

Although I am an ABC (American-born Chinese), I am taking Chinese classes. At home, I learned to speak the Shanghai dialect of Chinese, and passively picked up some ability to listen to basic conversations in Mandarin Chinese, but I never learned to speak it, or to read or write it. I started taking classes in high school when they were introduced during my sophomore year. In any event, for the current Chinese class I am taking, one of the recurring assignments is to write a blog entry on a weekly basis. Our professor chose blog.sina.com.cn as the blog host. Part of that assignment is to also read and comment on three of the other blog entries posted by classmates.

One of the entries my classmate posted asked for advice in finding off-campus housing. My first attempt to comment said something similar to:
今年学生政府推出了校外房评比网站,应该对你很有帮助:http://www.jhusga.com/ochd/
[Translated: This year, the student government launched an off-campus housing comparison website, which should be helpful for you. Here is the link: http://www.jhusga.com/ochd/]

When I noticed that this comment had disappeared, I posted a new one:
好像我的评论被和谐了。。。。反正,你可以去看http://www.jhusga.com/ochd/
[Translated: It seems that my earlier comment got censored (using a term that means harmonize, but is popularly used by bloggers to mean "censored by the government in the name of harmony"), in any case, you should check out http://www.jhusga.com/ochd/.]

That also disappeared. I e-mailed my professor and we both thought the first was removed because of the word "government", but I tested a bit more and it turns out it was because of the link! If I paste only the link, the comment gets deleted. If I change the comment to say "Google for JHU OCHD" instead of providing the direct link, the comment stays.

Apparently any link that goes to a "foreign" website is considered worthy of censorship, at least on Sina's blog platform.